Knowledge

1530:- 1901 November 5 - An apparatus for transmitting signals or intelligence through the natural media from a sending station to a distant point the combination of a generator or transmitter adapted to produce arbitrarily varied or intermitted electrical disturbances or effects in the natural media, and for utilizing electrical effects or disturbances transmitted through the natural media, the combination with a source of such effects of disturbances of a charging-circuit adapted to be energized by the action of such effects or disturbances, between which a difference of potential is created by such effects or disturbances, a storage device included in the charging-circuit and adapted to be charged thereby, a receiver, a means for commutating, directing, or selecting the current impulses in the charging circuit so as to render them suitable for charging the storage device, a device for closing the receiving-circuit, means for causing the receiver to be operated by the energy accumulated in the storage device at arbitrary intervals of time when connecting the receiving-circuit with the storage device for periods of time predetermined as to succession and duration, and means for discharging the storage device through the receiving-circuit at arbitrary intervals of time. 1366:- 1898 October 4 - A circuit controller (see also 609245, 609246, 609247, 609250, 609251, 611719). Conductive fluid make and break circuit; The combination of a closed receptacle, of a circuit controller contained therein, and surrounded by an inert medium under pressure; Method of maintaining an inert atmosphere under pressure; Vessel containing a liquefied inert gas and method of communicating with the interior of the receptacle; One terminal is of a conductive fluid (such as mercury); Combination of conductors of series of conductors constituting one terminal of a circuit controller, means of maintaining a stream or jet of conductive fluid as the other terminal with which the conductor makes intermittent contact; Close receptacle containing terminal; Method of excluding oxygen from terminals; Motive device for rotating conductors; Force-pump in direct connection with conductor for maintaining a circulation of conducting fluid contained in the receptacle through the nozzle or nozzles; Rotating screw with conductor and extending into a well in which the fluid collects; Duct or ducts leading from the well to points from which the fluid will be direct against the rotating conductor; Magnetic core mounted on spindle. 1180:- 1896 September 22 - used in the laboratory at New York, 35 South Fifth Avenue lab for employing currents of different phase; method for producing electric currents of high frequency, which consists in generating an alternating current, charging a condenser thereby during determinate intervals of each wave of said current, and discharging the condenser through a circuit of low self-induction; the combination with a source of alternating current, a condenser, a circuit-controller adapted to direct the current during determinate intervals of each wave into the condenser for charging the same, and a circuit of low self-induction into which the condenser discharges; the combination with a source of alternating current, a synchronous motor operated thereby, a charging-circuit in which the energy of said current is stored, a circuit-controller operated by the motor and adapted to interrupt the charging-circuit through the motor at determinate points in each wave, a condenser connected with the motor-circuit and adapted on the interruption of the same to receive the accumulated energy stored therein, and a circuit into which the condenser discharges. 916:- 1894 January 2 - Combination with the piston or equivalent element of an engine which is free to reciprocate under the action thereon of steam or a gas under pressure, of the moving conductor or element of an electric generator in direct mechanical connection; Engine and generator being adjusted by their relative adjustment with respect to period to produce currents of constant period; Electric generator having inducing or induced elements one of which is capable of oscillation in the field of force, the movable element being carried by the piston rod of the engine; Relation as to respect of period of electrical vibration will not disturb the period of the engine; Cylinder and piston reciprocating by steam or gas under pressure of a spring maintained in vibration by the movement of the piston, and the electric generator, the movable conductor or element of which is connected with the piston; Method of constructing and adapting elements; Imparting the oscillation of an engine to the moving element of an electric generator and regulating the period of mechanical oscillation by adjustment of the reaction of the electric generator. 1516:- 1901 November 5 -Utilizing effects or disturbances transmitted through the natural media, which consists on charging a storage device with energy from an independent source, controlling the charging of said device by the actions of the effects or disturbances (during succeeding intervals of time determined by means of such effects and disturbances corresponding in succession and duration of the effects and disturbances), and coincidentally using the stored energy for the operating a receiving device; Independent source may be at a distant transmitting electrical energy; Receiving device circuit discharges the accumulated stored energy (which may be potential energy) and causing variations in resistance in a circuit including an independent source of electricity and a storage device; Effecting the storage (such as, in a condenser) during any desired time interval and under control of such effects of disturbances; Accumulated energy may operate a transformer (by discharging through a primary circuit at predetermined times) which, from the secondary currents, operate the receiving device. 1324:- 1898 August 16 - A circuit controller (see also 609245, 609246, 609247, 609250, 609251, 611719); Conductive fluid make and break circuit; Combination in a circuit controller with a closed rotary receptacle, of a rigid conductor mounted in the same and through which the circuit is intermittently established, and means for directing a jet of stream of a fluid which is contained in the receptacle, against the said body so as to affect its rotation independently of the receptacle; Rotary receptacle of a body or part mounted within the receptacle and concentrically mounted therewith, a conducting-terminal supported by said body and capable of rotation of the receptacle so as to oppose, by gyroscopic action, the rotation of the support, and means for directing a jet of conducting fluid against said terminal; A rotary receptacle of a support for a conductor mounted thereon concentrically with the receptacle and a gyrostatic disk carried by the support and adapted, when rotating, to oppose its movement in the direction of the rotation of the receptacle. 1148:- 1896 September 22 - Primarily provides a simple, cheap, and effective apparatus for the production of ozone (or such gases); Obtained by the action of high-tension electrical discharges; Related to US462418 (November 3, 1891) and US454622 (June 23, 1891); In combination with a low self-induction and resistance circuit of direct currents, of a controller for making and breaking the same, a series-wound motor included in or connected with the charging-circuit and driving the controller; A condenser around the point of interruption in a circuit around the controller, and a transformer through the primary of which the condenser discharges (producing the potential necessary for such primary discharge and the coil raises the potential of such discharge) and which is in the discharge-circuit of the condenser; Device for maintaining a current of air between the discharge-surface; A fan-motor (maintaining a current of air between the discharge-surfaces) is connected with the charging-circuit. 452:- 1889 July 16 - Relates to class of machines referred to as "Unipolar" machine (i.e., a disk or cylindrical conductor is mounted in between magnetic poles adapted to produce a uniform magnetic field); Construction of a machine with two fields, each having a rotary conductor mounted between its poles; Discussed the disk form primarily; The direction of the magnetism or order of the poles in one field of force is opposite to that of the other, so the rotation of the disk in the same direction forms a field from the center to the circumference and another from the circumference to the center; Contacts applied to the shafts form terminals of a circuit to produce a sum of electromotive forces of the two disks; If direction of the fields are the same, driving the disks in the opposite direction will obtain the same results. 564:- 1889 December 31 - Electric generator; Employment of an artificial cooling device; Enclosing the source of heat and that portion of the magnetic circuit exposed to the heat and artificially cooling the said heated part; Combination of an enclosed source of heat applied to a portion of said core; Magnetized core or body and a conductor within the field of force; Artificial cooling device for reducing the temperature of the heated portion thereof; Means for bringing a cooling gas or fluid in contact with the heated portion of the core, and means for controlling the admission of the same; The combination and coils wound thereon and a connection with a boiler for admitting steam into the channels, as set forth; Magnetized core containing passages or channels; Means for applying heat to a portion of the core. 1194:- 1896 September 22 - an isochronous mechanical break used in the laboratory at New York, 35 South Fifth Avenue lab for employing currents of different; patent covers possible variations within Tesla's wireless systems; a combination with a source of alternating current, of a condenser adapted to be charged thereby, a circuit into which the condenser discharges in a series of rapid impulses and in synchronism with the source, and a circuit-controller for effecting the charge and discharge of said condenser, composed of a set of sub-divided conductors (a pair of angularly adjustable terminal and two or more rotating conductors) moveable into and out of proximity with (e.g., passing by) each other, whereby a spark may be maintained between them and the circuit closed thereby during determined intervals. 596:- 1890 May 13 - Electric generator; Employment of an artificial cooling device; Enclosing the source of heat and that portion of the magnetic circuit exposed to the heat and artificially cooling the said heated part; Combination of an enclosed source of heat applied to a portion of said core; Magnetized core or body and a conductor within the field of force; Artificial cooling device for reducing the temperature of the heated portion thereof; Means for bringing a cooling gas or fluid in contact with the heated portion of the core, and means for controlling the admission of the same; The combination and coils wound thereon and a connection with a boiler for admitting steam into the channels, as set forth; Magnetized core containing passages or channels; Means for applying heat to a portion of the core. 1855:; Describes a method of achieved vertical take-off, transition to and from horizontal flight, and vertical landing, with a tilting rotor. Including transportation which consists in developing by the propelling device a vertical thrust in excess of the normal, causing thereby the machine to rise in an approximately vertical direction, tilting it and simultaneously increasing the power of the motor and thereby the propeller thrust, then gradually reducing the propeller thrust as forward speed is gained and the plane takes up the load, thus maintaining the lifting force sensibly constant during flight, tilting the machine back to its original position and at the same time increasing the power if the motor and thrust of the propeller and effecting a landing under the restraining action of the same. 1548:; Used as part of Tesla's Colorado Spring receivers that posed a distributed high-Q helical resonators, radio frequency feedback, crude heterodyne effects, and regeneration techniques; an apparatus for transmitting signals or intelligence through the natural media from a sending station to a distant point the combination of a generator or transmitter adapted to produce arbitrarily varied or intermitted electrical disturbances or effects in the natural media; combination of a source of electricity, a transformer, a device normally of high resistance but adapted to have its resistance reduced when acted upon by the effects or disturbances, with a receiving circuit connected with a condenser and a deceived adapted to open and close the receiving circuit at predetermined intervals of time. 763:- 1891 June 30 - Method of computing the amount of electrical energy expended in a given time in an electrical circuit; Operates by maintaining by the current a potential difference between two conductors in an electrolytic solution (or cell) uniform throughout the whole extent of such conductors exposed to the solution; Measurement of the variation of the resistance in one or both conductors dues to the gain or loss of metal by electro-deposition; Electrolytic cell and conductors passing through the cell and connected in series with a translating device; One or more resistances connected with the conductors and cell for establishing a potential difference between the two conductors through the solution of the cell; Tubular cell contains electrolytic solution and closed at each end. 1502:- 1901 November 5 - Heinriech Hertz methods cited; Induction method cited; Ground conduction method cited; Previous methods had limitations that result in great disadvantages for utilization; Wireless transmission developed by Tesla cited; Transmitting station coil arranged and excited to cause arbitrary or intermitted oscillation propagation to another remote point receiver station coil; Air is an excellent insulator; Air strata used for means of conduction for production of generating actions at a distance; Use of metallic conductor; Transmitting apparatus of signals or intelligence should produce effect as strong as possible; Charge a condenser or capacitor to utilize the potential energy. 1166:" (illustrated in that article as Fig. 10) in the wireless field for the concatenated tuned circuits; regulates the energy delivered by a system for the production of high-frequency currents. It consists of a supply-side circuit whose current is diverted into a charging circuit of high self-induction, a condenser (charged by the supply circuit), another circuit (with low self-induction) which the same discharges through (and raises the potential of the condenser), and means for controlling the charging and the discharging of same, the said method consisting in varying the relation of the varying frequencies of the impulses in the circuit comprise the system. 860:- 1892 December 13 - Alternating current generator consisting of independent armature-circuits formed by conductors alternately disposed; Currents developed differ in phase and the field magnet poles in excess of the number of armature-circuits; Motor having independent energizing circuits connected to the armature-circuit of the alternating current generator; Rotating magneto-electric machine yielding a given number of current impulses or alterations for each turn or revolution; Poles which in number are less than the number of current impulses produced in each motor-circuit by one turn or revolution; Multipolar alternating-current machine. 1296:"; Conductive fluid make and break circuit; A combination of a closed receptacle containing a fluid, a method to rotate said receptacle, a mounted support, means for opposing or preventing the mount's movement in the same direction of the receptacle, and a terminal conductor in the support; Terminal capable of rotating about its axis or provided with rotating contacts; Fluid comprises the opposite terminal; Eccentric weight to a spindle; Rotating terminal connected with spindle; Receptacle mounted to rotate about an axis inclined to the vertical; Spindle inside receptacle; Weighted armature; Fluid is displace by centrifugal force. 1394:- 1898 July 1 - Tesla "Boat" patent; Art of controlling the movements and operation of a vessel or vehicle at a distance; Electromagnetic waves conveyed to vessel by the natural media and rendering by their means the controlling-circuit active or inactive; New and useful improvements in methods of and apparatus for controlling from a distance; Solution for controlling from a given point the operation of mechanisms; No intermediate wires, cables, or other form of electrical or mechanical connection with the object save the natural media in space; explanation of most practical and effectual method and apparatus; Remote control. 791:- 1891 September 22 - Alternating current non-synchronizing electric motor coupled with a synchronizing alternating current motor whereby the former starts the latter and throws it into synchronism with its actuating current; Switch mechanism for directing the current through either or both of the motors; Combination of two motors (one an alternating current torque motor and the other a synchronizing alternating current motor) the armatures of which are mounted upon the same shaft; Switching circuit directing the alternating current or currents through the several circuits of one motor or the single circuit of the other. 1049:- 1894 February 20 - Method of measuring the amount of electrical energy expended in a given time in an electric circuit of alternating currents; High tension discharge through a rarefied gas between two conductors; Computing from the amount of the particles thrown off from the conductors or one of the same by action of the discharge of the energy expended; Primary coil in series with a translating device; High tension secondary; Two carbon conductors sealed in an exhausted receiver and coated with an insulating material on three sides, one terminal of each conductor being connected to a terminal of a secondary. 888:- 1893 December 26 - Motor having independent energizing circuits connected with a source of alternating currents; Means of rendering the magnetic effects to said energizing circuit of difference phase; Armature within the influence of the energizing circuit; Energizing circuits connected in derivation or multiple arc and of different active or variable resistance (or self-inductance); Pairs of mains connected and a multiple circuit differential phase; Change of time-period of currents passing through an electro-motive phase-changing device interposed between the mains and the destination; Includes a correction. 388:- 1888 January 15 - Widely known that heat applied to a magnetic body will lessen its magnetizing ability; High enough temperatures will destroy the magnetic field; Mechanical power by a reciprocating action obtained from the joint action of heat, magnetism, and a spring or weight (or other force); In this patent, the application of heat to a body that is magnetized by induction or otherwise to the action of heat until the magnetism is neutralized to allow a weight or a spring to give action and lessen the action of the heat to restore the magnetic effect to move the body in the opposite direction. 1488:". Producing increase intensity and duration of electric oscillations; Combination of a circuit to possess freely vibrating excitations and of means for artificially cooling the circuit to a low temperature; Low temperature resonating circuit; Uses of electrical impulse oscillations; A circuit upon which oscillations are impressed, and which is adapted to vibrate freely, in combination with a receptacle containing an artificial refrigerant in which the circuit is immersed; Low resistance oscillators in a series of transmitting and receiving circuits in a system for the transmission of energy. 934: 1310:- 1898 August 16 - A circuit controller (see also 609245, 609246, 609247, 609250, 609251, 611719) in which one terminal body moves through jets or streams intermittently and intercepts jets or streams; Conductive fluid make and break circuit; Rotary conductor; One terminal body moves through jets or stream intermittently and intercepts jets or streams; One rigid terminal receives directed jets or streams; Combination in a receptacle of a conducting disk and an insulated disk; Stationary tube or duct to direct jets or streams toward the conductor across the path of intermittent projections. 332:- 1888 October 2 - Related to the patents of Tesla and Charles F. Peck, numbers: US381968 and US382280; Ordinary forms of continuous and alternate current systems may be adapted to Tesla's system, with slight changes to the systems; Effects their forms; Only the best and most practical solutions are presented to the three most common forms of the devices applicable; Illustrated are the continuous (or closed) circuit machines, machines possessing armatures with coils connected diametrically (known as "open-circuits"), and machines with armature-coils of which have a common joint. 1007:- 1894 February 6 - Provide a means of engines, which under the applied forces such as elastic tension of steam or gas under pressure, that will yield constant oscillatory movements (in wide limits); Function is constant irrespective of the loads, frictional losses, or other factors (which degrade other engines); Convert pressure into mechanical power; Better at higher temperatures and pressures than previous engines; Same principles of this engine appear later in the modern gasoline motors of automobiles; often cited by enthusiasts as a version of the "earthquake machine." 749:- 1891 June 30 - Alternating current motor, with field magnets and energizing circuit armature-circuit and a core adapted to be energized by currents induced in its circuit by the currents in the field circuit; Condenser connected with or bridging the armature-circuit (e.g., the rotating element of the motor); Energizing circuit formed by coils wound thereon in a different inductive relations to the field and joined in a continuous or closed series; Combination of a condenser, the plates of which are connected, respectively, to the junctions of the circuits or coils. 652:- 1890 August 5 - Describes the combination, in an alternating current motor, of an energizing coil and a core composed of two parts (one being protected from magnetization from the other one interposed between it and the coil); A rotating armature is motivated by the induced fields; Alternatively, a field magnet composed of a coil and core (with two sections in proximity of the coil and an inner section between the same); Also, a field magnet each composed of a coil and core (with two sections in proximity of the coil and an inner section between the same). 508:- 1889 December 3 - Induction motor operation with two or more windings; securing differing phase differences; Phase proportional to the induction and inverse to the resistance encountered by the current; one circuit (the energizing circuit) should have high induction and low resistance (along with possessing the greater length or number of turns) and the converse in the other (which has few turns of finer wire or wire that has higher resistance); magnetic quantities of the poles should be approximately equal; Self-induction cores are much longer. 1134:- 1896 September 22 - Conversion of direct current into currents of high frequency. Combination of high self-inductance circuit, choking coil circuit controllers adapted to make and break the circuit, a condenser into which the back-emf discharges when interrupted, and a transformer through the primary of which the condenser discharges; Motor for driving the controller; 'Current of high electromotive force (voltage) which is induced at each break of the main circuit (back-emf) furnishes the proper current for charging the condenser (capacitor).' 438:- 1889 June 25 - New and useful method of bringing up the motor to a desirable speed; Forms of alternating current machines, connected to alternating current generators, can be run as synchronous motor; Prior, alternating current will not start it; Construct a generator with two coils or sets of coils and connect them with a motor of corresponding coils or sets of coils; By means of two line wires, the motor and generator in like fashion; Related to US 390413 (for means of starting); Will operate as a single-circuit synchronizing system. 1573:- 1901 November 5 - 4 illustrations; Radiation charging and discharging conductors; Radiations considered vibrations of ether of small wavelengths and ionize the atmosphere; Radiant energy throws off with great velocity minute particles which are strongly electrified; Rays or radiation falling on insulated-conductor connected to a condenser (i.e., a capacitor), the condenser indefinitely charges electrically; Radiation (or radiant energy) include many different forms; Related to US577671; Transmitted or natural energy can be used; 1352:- 1898 August 16 - A circuit controller (see also 609245, 609246, 609247, 609250, 609251, 611719). Circuit comprising, in combination, a receptacle containing fluid, means for rotating the receptacle, and a terminal supported independently of the receptacle and adapted to make and break electric connections; Receptacle contains a conductive and non-conductive fluid; Means of rotating the receptacle; Terminal adapted to make and break electrical connection with the conductive fluid within or under the non-conductive fluid. 1464:'s hypothesis of freezing substances make them possess a higher dielectric level to insulate transmission conductors; Improvements in the method set out by Faraday; Method of insulating electrical conductors which consist in surrounding or supporting said conductors by a material which acquires insulating properties when frozen or solidified; Method of maintaining a conductor within a gaseous cooling agent by the continuous application of said agent; Trough or conduit with circulating cooling agents; Reissued as 1250:- 1897 November 2 - Novel form of transformer or induction-coil and a system for the transmission of electrical energy by means of the same; Improvement of electrical transformers; Develops electric currents of high potential; Corrects construction principles heretofore manufactured; Higher potential for transmission than has ever been practically employed heretofore; Free from the danger of injury from the destruction of insulation; Safe to handle; High-frequency power supply for lighting and other applications. 1894:'s hypothesis of freezing substances make them possess a higher dielectric level to insulate transmission conductors; Improvements in the method set out by Faraday; Method of insulating electrical conductors which consist in surrounding or supporting said conductors by a material which acquires insulating properties when frozen or solidified; Method of maintaining a conductor within gaseous cooling agent by the continuous application of said agent; Trough or conduit with circulating cooling agents. 424:- 1889 June 25 - Torque, instead of being the result in the difference in the magnetic periods or phases of the poles or to the attractive parts to whatever due, is produce to the angular displacement of the parts which, though movable with the respect to one another, are magnetized simultaneously, or approximately so, by the same currents; Concerns the armature and the field laminations of the magnetic core for the greatest magnetic attractions; Best means to achieve these results. 777:- 1891 June 30 - Incandescent lamp consisting of two isolated refractory conductors contained in a non-striking vacuum and adapted to produce light by incandescence; Globe or receiver exhausted to the non-striking point with two mounted isolated bodies (or metal wires) of refractory conducting material to emit light and sealed in; Terminal to connect with an electrical energy source; Refractory conducting material not to be rendered incandescent coated or covered with insulation. 1077:- 1894 August 14 - Alternating current motor with energizing coils adapted to be connected with an external circuit of cores of different magnetic susceptibility so as to exhibit differences of magnetic phase under the influence of an energizing current; Rotary armature of magnetic poles and coils adapted to be connected with the external circuit surrounding the same; Cores constructed of different size, length, mass, or material whereby their magnetic phase will differ in time. 610:- 1890 August 5 - Rotation of an electromagnetic motor is produced by the magnetic movements or the maximum of the pole's (or point's) magnetic effects from the conjoined actions (or the two energizing circuits) through which alternating currents (or similar rapidly varying currents) are passed through; Multiple magnets are powered by artificial currents; Inverse strength of magnetism on stator for best rotation; Creates multiple phases through one circuit from one power source. 30: 410:- 1889 April 16 - Improvements to previous instances of synchronous motors; Previous instances of synchronous motors have not been started by the alternating current generators; New discovery of simple method or plan of operating such motors; Requires no other device other than the motor itself; Conversion from a double circuit motor and which will start under the actions of an alternate current into a synchronizing-motor; synchronous motor definition. 1222:- 1897 February 23 - Improvements of condensers, transformers, self-induction coils, rheostats, and other similar devices; Used in areas where currents of high potentials are brought into close proximity; Method of excluding gas or air from the dielectric environment of such devices; Insulated material rendered fluid by heat; Material permeated the interstices of device and held under pressure; Material cooled and solidified under pressure. 582:" motors; Another form of the induction motor with two or more energizing circuits with differing phase differences are passed to produce rotation or operation of the motor; Magnetism lags electrical parts of energizing effects; Manifests these effect simultaneously and not successively; Related to US405858; Torque is produced to the angular displacement of parts; Best means to achieve these results; prefer the use of alternating currents. 1553: 874:- 1893 December 26 - Method of operating motors having independent energizing circuits; Passing alternating currents through circuits and retarding the phases of the current in one circuit to a greater extent; Directing alternating currents from a single source through both circuits of a motor and varying or modifying the relative resistance or self-induction of motor circuits, producing in currents differences in phases. 1446:- 1900 May 15 - Related to US645576; New and useful combinations employed; Transmitting coil or conductor arranged and excited to cause currents or oscillation to propagate through conduction through the natural medium from one point to another remote point therefrom and a receiver coil or conductor of the transmitted signals; Production of currents of very high potential; Transmitting station and receiving station. 550:- 1889 December 24 - Construction principles of the armature for electrical generators and motors; Simple and economical; Coils of insulated conducting wire (or ribbon) may be wound or formed into bobbins; Position of the bobbins dictate the windings; Armature has polar projections and maximum core-surface exposure to the field magnetic poles; Related to other applicant patents, numbers US327797, US292077, GB9013. 480:- 1889 December 3 - Induction motor with two or more energizing circuits; alternating currents of differing phases are passed to produce rotation or operation of the motor; simple way consists of two circuits; alternate way consists of one line that divides the alternating current in the motor circuit and effects an artificial lag in one of the circuit of branches (such as by a different induction capacity). 1709: 1264:- 1898 August 16 - A circuit controller (see also 609245, 609246, 609247, 609250, 609251, 611719); Conductive fluid make and break circuit; Nozzle and conductor construction and their relative method of operation; Single source of power for operation; Nozzle and receptacle interaction; Combination of rotating receptacle and motor, a magnetic body in receptacle, and an exterior mounted magnetic body. 276:- 1888 May 1 - Improvements in electromagnetic motors and their mode or methods of their operations; Motor is wound with coils forming independent circuits on the armature; Armature is mounted to rotate between two different poles; Armature will eventually synchronize with that of the generator; Windcoils or coils on the field magnets; Expose to continuous current to maintain a permanent field. 466:- 1889 October 22 - Superiority of alternating currents discussed; Delineates machines to convert alternating currents to direct (or continuous) currents at will at one or more points; Obtain direct currents from alternating currents; Active resistances to opposite electrical character, whereby the currents or current-waves of opposite character will be diverted through different circuits. 993:- 1894 February 6 - Generating and utilizing electrical energy discovered by Tesla; related to US454622 and US462418; Maintenance of intermittent or oscillatory discharges of a condenser of suitable circuit containing translating devices; Discharges take place in insulating liquids (such as oil); Varying spark gap distances; Keep circulating flow in liquid; Illustrates preferred manner. 374:- 1888 October 9 - Improvement in the electrical transmission systems; Means of regulating and power of the motor or motors; Used with system of multiple motors primarily (or systems with motors and transformers) that have independent energizing circuits which act to set up progressive or shifting magnetic poles (i.e. the rotating magnetic field); Controls the speed of the motor. 1594:- 1901 November 5 - 2 illustrations; Ways of using radiation charging and discharging conductors; Rays or radiation falling on insulated-conductor connected to a condenser (i.e., a capacitor), the condenser indefinitely charges electrically; Radiation (or radiant energy) include many different forms; Related to US577671; Photoelectric stepping alternating current motors. 304:- 1888 May 15 - Relates to dynamo-electric machines or motors; Improvements on devices to collect or communicate currents; Avoids destruction and wear of machine; Avoid adjustments due to destruction and wear; Enable practical construction of very large dynamo electric machines or motors with the minimum number of communicator segments; Increases safety and efficiency. 1380:- 1898 November 8 - A circuit controller (see also 609245, 609246, 609247, 609250, 609251, 611719). Conductive fluid make and break circuit; Combination with rigid and fluid conductors adapted to be brought intermittently into contact with each other; Means for imparting rotary motion to rigid and fluid conductors; Means to rotate by the movement of a fluid conductor. 3616: 819:- 1891 December 8 - Alternating current motor provided with two or more energizing or field circuits; One circuit connected to current source and the other (or others) in inductive relation thereto; One circuit connected to alternating currents and the other constituting high potential secondary circuit; Condenser interposed in the inductive circuit. 735:- 1891 June 23 - Apparatus devised for the purpose of converting and supplying electrical energy in a form suited for the production of certain novel electrical phenomena, which require currents of higher frequency and potential. It specifies an energy storage capacitor and discharger mechanism on the primary side of a radio-frequency transformer. 638:- 1890 August 5 - Main magnetic core and the primary and secondary coils interposed by a magnetic shield or screen between the coils or around one of the coils; Coils can be wound upon or built up around the magnetic shield; Adapted to or capable of being magnetically saturated by a predetermined current strength below the maximum in the primary. 1208:- 1897 February 23. Two input circuits are each pulsed with a 25% duty cycle. Additionally, the brushes are phased so that the on states (discharges) never overlap. The output circuit has a toggled 50% output duty cycle, double the duration of the input pulse. Resultant back-emf is rectified to capacitors, and fed through a Tesla coil to a load. 1094: 1422:;Tesla applied for this patent in September 1897 This wireless power transmission scheme consisted of transmitting power between two tethered balloons maintained at 30,000 feet, an altitude where he thought a highly conductive layer of the atmosphere would exist. He based the idea on the same low pressure conductivity phenomenon noticed in a 391: 360:- 1888 October 9 - Relates chiefly to the alternate current machine invented by Tesla; Related to patents numbered US381968 and US382280; Seeks to avoid mechanical drawback of running high frequency machines; Efficient at low speeds; Producing rotating magnetic poles in one element of the machine and drive the other at a different speed. 1278:- 1898 August 16 - A circuit controller (see also 609245, 609246, 609247, 609250, 609251, 611719); Conductive fluid make and break circuit; Conductive liquid forming terminals; Two orifices with relative movement that can direct jets or streams; Two insulated compartments; Jets or streams are brought into intermittent contact. 697: 1021:- 1894 February 6 - Related to US454622; Incandescent electric lamps; Particular forms of the lamp in which a light giving small body or button of refractory material is supported by a conductor entering a very highly exhausted globe or receiver; Conducting screen surrounds the supporting conductor; Single node vacuum tube. 716: 185: 346:- 1888 October 2 - Improvement in the construction of dynamo or magneto electric machines; Novel form of frame and field magnets that renders the machine more sturdy and compact as a structure; Requires fewer parts; Less difficulty in construction; Lower expense; Useful to alternating and continuous current machines. 1802:- Valvular Conduit - 1920 February 3 - Improvement by means of a conduit or channel characterized by valvular action; Conduit has baffles, recesses, projections, enlargements, or buckets that channels the flow's movement one way more efficiently; Mechanical diode; One-way valve with no moving parts. Now known as a 290:- 1888 May 1 - Related to electric distribution systems; Current is from a single main source or suitable transmitting circuit; Induction into an independent circuit; Divide the current from a single source; Transformations; Discovery of method to avoid prior liable and dangerous methods; True Dynamic induction. 1120:- 1896 September 15 - Condenser constructed or provided with means for exclusion of air or gas; Armature composed of a conducting liquid; Armatures in two separate bodies of conducting liquid insulated electrically and contained in a receptacle; Insulating liquid seal on the surface of the conductive liquids. 1338:- 1898 August 16 - Ignition system principles used today in automobiles; Operation of a machine that requires a spark, flame, or any other similar effect; More certain and satisfactory for use of and control by the machine or apparatus; Charging and discharging a condenser through switch or commutator. 1091:- 1896 February 25 - Related to US381968 and US382280; Mode and plan of operating electric dynamic motor generators by progressive shifting; Magneto-electric machine; Dynamo motor conversion with two independent alternating current circuits; Transmission of energy; Rotating magnetic field principles. 522:- 1889 December 3 - Drawings include the motor seen in many of Tesla's photos; Classic alternating current electro-magnetic motor; Induction motor operation; Field and armature of equal strengths or magnetic quality; field and armature cores of equal amounts; Coils containing equal amount of copper. 666:- 1891 January 27 - Describes the combination, in a motor, of a primary energizing circuit (connected to a generator) and a secondary circuit in inductive relation to the primary; Each circuit has a different electrical character, resistance, induction capability, or number and type of windings. 2408:- 1921 March 24 - Improvements to increase efficiency of steam power plants and thermo-dynamic transformers; Producing motive power; Economical; Operable at very high temperature; Operable with cheap fuel; Avoids deteriorating actions previously common; System is related to the Tesla turbine. 961:- 1894 January 9 - Effect of mutual relation self-induction exploited; Adjacent coil convolutions formed parts exists so that the potential difference is sufficient to neutralize negative effects; Object to avoid expensive, cumbersome, and difficult condensers; Bifilar coil winding technique. 1923: 3389: 1636:- 1905 April 18 - Elevated transmitter capacitance; Coil; Earth electrode; Signal generator; Apparatus for generating and receiving electrical signals; Tuned resonant circuits; Physics of propagation; Non-Hertzian notes; Globe as conductor; Low frequency oscillations. 55:. Some of Tesla's patents are not accounted for, and various sources have discovered some that have lain hidden in patent archives. There are a minimum of 278 patents issued to Tesla in 26 countries that have been accounted for. Many of Tesla's patents were in the 1655: 1622:- 1903 April 14 - Elevated transmitter capacitance; Coil; Earth electrode; Signal generator; Apparatus of and method for electrical disturbance or impulses; Transmission of intelligent messages via wireless transmission; Govern the movement of distant automata. 536:- 1889 December 3 - Induction motor operation with two or more windings; Differing phases; Structural and operational conditions; Armature operation conditions and the obedience to the energizing circuit and stator; Construction and organization principles. 1063:- 1894 April 10 - Cylinder and reciprocating piston (with a spring) and controlling slide valve of an engine adapted to be operated by steam or a gas system under pressure of an independently controlled engine of constant period operating the said valve. 1397: 1035:- 1894 February 20 - Utilizes high potentials and high frequencies; Insulated and screened supply conductor along the line of travel; Induction bar or plate in inductive relation to the screened conductor and an electrical connection to the motor. 210:- 1888 May 1 - Mode and plan of operating electric motors by progressive shifting; Field Magnet; Armature; Electrical conversion; Economical; Transmission of energy; Simple construction; Easier construction; Rotating magnetic field principles. 919: 1778:- 1918 August 6 - Speedometer that possesses the feature of: Linearly proportional torque readings; Strong low speed torsional effects; not affected by atmospheric density, temperature, nor magnetic influences; Rugged; Simple; Economical. 494:- 1889 December 3 - Related to US401520; Alternative improvements to synchronous motors; Torque and synchronous actions in motors; different field circuit of differing induction; Windings and shunts; Increases tendency to synchronize. 318:- 1888 October 2 - Related to previous electric distribution systems developed by Tesla; Examples of systems in operation with motors or converters, or both, in parallel; Examples of systems in parallel; Examples of systems in series. 805:- 1891 November 3 - Apparatus devised for the purpose of converting and supplying electrical energy in a form suited for the production of certain novel electrical phenomena which require currents of higher frequency and potential. 902:- 1894 January 2 - Method of operating electro-magnetic motors; Passing alternating currents through one of the energizing circuits and inducing by such current in the other energizing circuit or circuits of the motor. 680:- 1891 March 10 - Abate or render inaudible sound emitted by arc lamps that are powered by (or supplied with) alternating currents by increasing the frequency of alternations (or pulsations) above the auditory level. 3140:: proposed defensive weapon system using pellets or slugs of material accelerated to a high velocity inside a vacuum chamber via electrostatic repulsion and then fired them out of aimed nozzles at intended targets. 1764:- 1918 May 14 - Novel and advantageous construction of a protector in accord with the true character of the phenomena; Corrects Benjamin Franklin's hypothesis, and subsequent construction, for lightning protectors. 262:- 1888 May 1 - New method or mode of transmission; Dynamo motor conversion with two independent circuits for long distance transmission; Alternating current transmission; Includes a disclaimer; Economic; Efficient. 2336:- 1910 October 17 - Bladeless turbine having disc rotors; Openings in the central portions and separating star-washers; Riveted into single, solid structure; Keyed to the shaft; Turbine or rotary engine. 234:- System of Electrical Distribution - 1888 May 1 - Current from a single source of supply in the main or transmitting circuit induce by induction apparatus; Independent circuit(s); Electric distributor. 1704:- 1914 October 13 - Improvement in the construction of fountains and aquarium displays; Large mass of fluid in motion; Display of great power; Large displacement of fluid with little expense of energy. 2820: 1236:- 1897 June 8 - Related to US568176; Conversion of electric current of ordinary character into high frequency and high potential; Can use either continuous (i.e., direct) or alternating currents. 3633: 2218: 1750:- 1916 December 19 - Improvement that uses the adhesion and viscosity of a gaseous medium to measure speed between indicator and driver; Durable; Simple; Inexpensive; Reliable. 1294: 1486: 109:- 1886 February 9 - Arc lamp with carbon electrodes controlled by electromagnets or solenoids and a clutch mechanism; Corrects earlier design flaws common to the industry. 1650:- 1909 October 21 - Transmission and transformation of mechanical power through the agency of fluid; Propelled fluid moves in a natural path; Avoids losses; Easy; Simple. 3214: 707:: Apparatus devised for the purpose of supplying electrical energy in a form suited for the production of certain phenomena, such as lighting. The first patent on the 3654: 224:- 1888 May 1 - Novel form and operating mode; Coils forming independent energizing circuits; Connected to an alternating current generator; Synchronous motor. 2740: 182:- 1887 March 22 - Improve construction; Facilitate easier construction; Reduce the cost; Magnetic frame; Armature; Alternating current synchronous motor. 60: 3823: 3816: 975:- 1894 February 6 - Prevent loss in line conductors; Insulate and encase conductors with a sheathing which is connected to the ground; Sheath or screen; 624:- 1890 August 5 - Two sets of field-pole pieces of energized independently by the same source; Closed magnetic iron shunts or bridges in sets or series. 1834:- 1922 January 3 - Ascertain the periodic electric frequency and electric oscillation by the rotation or reciprocation of an electromechanical device. 1732:- 1914 December 1 - High-voltage, air-core, self-regenerative resonant transformer; Oscillator for wireless transmission of electromagnetic energy; 719: 3062: 3605: 3486: 3640: 67:, but many other patents were approved in countries around the globe. Many inventions developed by Tesla were not put into patent protection. 3412: 3712: 3161: 154:- 1886 March 2 - Auxiliary brush shunting a portion or whole of the field helices coil; Regulates energy flow; Adjustable level of current. 3187: 1677:- 1909 October 21 - Improvements in rotary engines and turbines; Mechanical power based on the vehicle of fluid for power; Known as the 2324: 3746: 2788: 2708: 3676: 3382: 3368: 3354: 3794: 1404:. The lower part is the generating coil and the upper part would have been a balloon supporting a conducting line at 30,000 feet. 3686: 3102: 140:- 1886 March 2 - Two main brushes connected to helices coil ends; Intermediate point branch shunt connection for third brush. 3326: 1792:- 1919 September 2 - Novel and advantageous construction of a ship's log; Instantaneous reading of knots or miles-per-hour. 248:- 1888 May 1 - Rotation is produced and maintained by direct attraction; Utilizes shifting poles; Induction magnetic motor. 3727: 1681:; Bladeless turbine design; Utilizes boundary layer effect; Fluid does not impact the blades as in a conventional turbine. 3722: 3707: 3647: 933: 2756: 3568: 1419: 3738: 3595: 3538: 3479: 2398:- 1921 March 24 - Two heavier end-plate; Tapered toward the periphery; Reduces maximum centrifugal stress; Turbine. 2606: 126:- 1886 February 9 - Arc lamp's automatic fail switch when arc possesses abnormal behavior; Automatic reactivation. 3870: 3558: 2724: 1460:- 1900 October 23 - Method and practical application of insulation by freezing and solidification; Expounding on 3322: 2354: 3732: 33: 3132:: proposed telecommunications and electrical power delivery system incorporating several of Tesla's patents. 3717: 3563: 3809: 2390: 1545: 2572: 2318: 3865: 3778: 3681: 3472: 3128: 2188: 3585: 2657: 2170: 1528: 1500: 3260: 2674: 92:- 1886 January 26 - Elements to prevent sparking on dynamo-electric machines; Drum-style with brushes. 1915: 1574: 2334: 2206: 3762: 3754: 3702: 3671: 2406: 1912: 29: 3023: 3005: 2987: 2969: 2951: 2933: 2915: 2897: 2879: 2860: 2134: 3600: 1820:- 1921 January 11 - Related to the meter of measurement for velocity and quantity of fluid flow. 3388: 2344: 3801: 3770: 3408: 3378: 3364: 3350: 2364: 168:- 1886 October 19 - Automatic regulation of energy levels; Mechanical device to shift brushes. 3198: 1717: 3829: 3528: 1608:- 1903 March 17 - Elevated transmitter capacitance; Coil; Earth electrode; Signal generator. 1552: 3786: 3548: 3533: 2491: 1891: 1461: 3270: 3839: 2158: 837: 3859: 3580: 3575: 3150: 2503: 2122: 1678: 1659: 1577: 976: 942: 694:- 1891 March 10 - A generator that produces alternations of 15000 per second or more. 56: 2889: 2288: 1654: 3834: 3521: 3495: 3416: 2979: 1708: 1423: 926: 40: 2530: 2479: 2312: 3590: 3516: 2623: 1903: 1803: 1160: 3123: 1392: 578:- 1890 March 25 - Cites then common language of his motors referred to as the " 3844: 3553: 3321: 3289: 3155: 2691: 2640: 2518: 1881: 1860: 1839: 1825: 1811: 1797: 1783: 1769: 1755: 1741: 1733: 1723: 1695: 1668: 1641: 1466: 1396: 708: 2589: 2524: 2509: 2497: 2485: 2473: 2451: 2306: 2294: 2282: 2270: 2258: 2246: 2224: 2212: 2200: 2176: 2164: 2152: 2140: 2128: 2116: 2104: 1627: 1613: 1599: 1585: 1564: 1535: 1521: 1507: 1493: 1475: 1451: 1438: 1410: 1385: 1371: 1357: 1343: 1329: 1315: 1301: 1283: 1269: 1255: 1241: 1227: 1213: 1199: 1185: 1171: 1153: 1139: 1125: 1111: 1082: 1068: 1054: 1040: 1026: 1012: 998: 984: 966: 952: 907: 893: 879: 865: 851: 824: 810: 796: 782: 768: 754: 740: 726: 685: 671: 657: 643: 629: 615: 601: 587: 569: 555: 541: 527: 513: 499: 485: 471: 457: 443: 429: 415: 401: 379: 365: 351: 337: 323: 309: 295: 281: 267: 253: 239: 229: 215: 201: 173: 159: 145: 131: 114: 97: 83: 17: 3543: 3396: 3136: 1101: 834: 52: 36: 3308:. the books has 229 p. front. (map) illus., plates, ports., diagrs. 22 cm.) 1132: 3271:"US Patent 649,621 : Apparatus for Transmission of Electrical Energy" 918: 3235: 1852: 122: 105: 44: 3302: 3615: 2416: 2252: 715: 3415:) is a book compiled and edited by Jim Glenn detailing the patents of 3236:"US Patent 645,576 : System of Transmission of Electrical Energy" 1093: 184: 2276: 64: 48: 390: 3429: 3387: 1911:" (New York, 1904)) but it does not seem to have been issued. The 1653: 1551: 1542: 1395: 803: 714: 696: 695: 183: 28: 3112: 1634: 1849: 1178: 3468: 3464: 3290: 1220: 3347: 2374: 2264: 2194: 2426: 1514: 1482: 1192: 3614: 3449: 2852: 2836: 2804: 464: 3459: 3444: 3304:". New York, D. Van Nostrand company, 1903. LCCN 03026887 ( 2300: 2230: 1206: 2961: 2772: 2396: 3634: 3454: 3092: 2997: 1869:- 1928 January 3 - VTOL aircraft; Includes a correction. 3439: 3434: 1400: 394: 288: 2871: 3695: 3664: 3625: 3502: 3082: 3072: 3534:Alternating-current commutatorless induction motor 1426:. Tesla also thought the system could be used to " 1234:Apparatus for Producing Currents of High Frequency 3015:Method and apparatus for producing a high vacuum 2384:Method of and Apparatus for Aerial Transportation 1428:transmit intelligible messages to great distances 3655:My Inventions: The Autobiography of Nikola Tesla 3361:My Inventions: The Autobiography of Nikola Tesla 1434:" providing nighttime lighting for people below. 1571:Apparatus for the Utilization of Radiant Energy 1444:Apparatus for Transmission of Electrical Energy 3349:", Kessinger Publishing Company, March, 1997. 2240:Improvements in Electrical Circuit Controllers 3480: 3197:. Belgrade, Serbia. p. 6. Archived from 1100:: Electrical Condenser; Examples of improved 8: 3363:", Hart Brothers Publishing, October, 1982. 3285: 3283: 1730:Apparatus for Transmitting Electrical Energy 1484:- 1900 March 21 - A method for producing a " 1430:" and thought the layer he energized would " 3327:Patenti Nikole Tesle (Nikola Tesla Patents) 1416:System of Transmission of Electrical Energy 1402:System of Transmission of Electrical Energy 492:Method of Operating Electro-Magnetic Motors 408:Method of Operating Electro Magnetic Motors 3824:The Man Who Invented the Twentieth Century 3817:Wizard: The Life and Times of Nikola Tesla 3487: 3473: 3465: 3195:Sixth International Symposium Nikola Tesla 858:System of Electrical Transmission of Power 636:Electrical Transformer Or Induction Device 608:Alternating-Current Electro-Magnetic Motor 3342:". The Electrical World, August 20, 1898. 1162:- 1896 September 22 - Cited by Tesla in " 34:Wireless transmission of power and energy 3440:World Intellectual Property Organization 3181: 3179: 2540: 2457:Improvements in Dynamo Electric Machines 2146:Improvements in Dynamo Electric Machines 1926: 1888:Method of Insulating Electric Conductors 1707: 1458:Method of Insulating Electric Conductors 1092: 932: 917: 389: 3186:Šarboh, Snežana (October 18–20, 2006). 3175: 3052:- date of application - notes on patent 3033:Method and apparatus for air transport 2182:Improvements relating to Electro-motors 2098:- date of application - notes on patent 1420:Wireless transmission of electric power 886:System of Electrical Power Transmission 436:Method of Electrical Power Transmission 302:Commutator for dynamo electric machines 90:Commutator for Dynamo Electric Machines 3606:Tesla Electric Light and Manufacturing 3251:US patent numbers 645,576 and 649,621 991:Means for Generating Electric Currents 692:Alternating Electric Current Generator 372:Regulator for Alternate Current Motors 166:Regulator for Dynamo Electric Machines 152:Regulator for Dynamo Electric Machines 138:Regulator for dynamo electric machines 2943:Enhancements to lightning conductors 1592:Method of Utilizing of Radiant Energy 1559: : Utilization of Radiant Energy 7: 3713:Tesla Science Center at Wardenclyffe 3460:European Network of Patent Databases 3405:The Complete Patents of Nikola Tesla 3393:The Complete Patents of Nikola Tesla 3162:The Complete Patents of Nikola Tesla 1907:" (such as Charles Henry Sewall's " 1867:Apparatus for Aerial Transportation 1578:stepping alternating current motors 1544:- 1901 November 5 - Related to his 1890:- 1900 October 23 - Expounding on 1432:illuminate upper strata of the air 1336:Electrical Igniter for Gas Engines 25: 3641:Colorado Springs Notes, 1899–1900 316:System of electrical distribution 3119:Un-patented devices and projects 2515:Improvements in Fluid Propulsion 1663:, Tesla's 100th American patent. 900:Electrical Transmission of Power 872:Electrical Transmission of Power 344:Dynamo Electric Machine or Motor 274:Electrical Transmission of Power 260:Electrical Transmission of Power 1846:Method of Aerial Transportation 3795:Nikola Tesla's Night of Terror 3435:US Patent and Trademark Office 2445:- date filed - notes on patent 2110:Improvements in Electric Lamps 1660:The "Bladeless" turbine design 594:Pyromagneto Electric Generator 548:Armature for Electric Machines 1: 3747:Tesla – Lightning in His Hand 3728:Belgrade Nikola Tesla Airport 1364:Electrical Circuit Controller 1262:Electrical Circuit Controller 1146:Apparatus for Producing Ozone 678:Method of Operating Arc-Lamps 3708:Nikola Tesla Memorial Center 3648:Fragments of Olympian Gossip 3345:Martin, Thomas Commerford. " 3340:Tesla's Circuit Interrupters 925:: Coil for Electro-Magnets; 3569:Resonant inductive coupling 1378:Electric Circuit Controller 1350:Electric Circuit Controller 1322:Electric Circuit Controller 1308:Electric Circuit Controller 1290:Electric Circuit Controller 1276:Electric Circuit Controller 1019:Incandescent Electric Light 733:System of Electric Lighting 705:System of Electric Lighting 3887: 3739:The Secret of Nikola Tesla 3596:Three-phase electric power 3539:Tesla Experimental Station 775:Electric Incandescent Lamp 3612: 3450:Canadian Patents Database 1929: 1692: 622:Alternating-Current Motor 3300:Sewall, Charles Henry, " 3188:"Nikola Tesla's Patents" 2006: 959:Coil for Electro-Magnets 848: 47:who obtained around 300 3718:IEEE Nikola Tesla Award 1033:Electric Railway System 450:Dynamo Electric Machine 358:Dynamo Electric Machine 330:Dynamo Electric Machine 180:Dynamo electric machine 3810:Tesla: Man Out of Time 3619: 3400: 3375:Tesla: man out of time 2907:Fountain Enhancements 1719: 1664: 1560: 1546:Magnifying Transmitter 1405: 1292:- 1898 August 16 - A " 1248:Electrical Transformer 1105: 946: 937:Electrical conductor, 930: 817:Electro-Magnetic Motor 789:Electro-Magnetic Motor 747:Electro-Magnetic Motor 720: 712: 664:Electro-Magnetic Motor 650:Electro-Magnetic Motor 576:Electro-Magnetic Motor 562:Electro-Magnetic Motor 534:Electro-Magnetic Motor 506:Electro-Magnetic Motor 478:Electro-Magnetic Motor 422:Electro Magnetic Motor 395: 246:Electro Magnetic Motor 222:Electro Magnetic Motor 208:Electro magnetic motor 195: 193:Electro magnetic motor 37: 3779:The Tesla World Light 3723:Tesla Satellite Award 3682:World Wireless System 3677:Westinghouse Electric 3618: 3391: 3129:World Wireless System 2517:- 1910 November 24 - 1861:U.S. patent 1,655,114 1840:U.S. patent 1,655,113 1826:U.S. patent 1,402,025 1812:U.S. patent 1,365,547 1798:U.S. patent 1,329,559 1784:U.S. patent 1,314,718 1770:U.S. patent 1,274,816 1756:U.S. patent 1,266,175 1742:U.S. patent 1,209,359 1724:U.S. patent 1,119,732 1711: 1696:U.S. patent 1,113,716 1669:U.S. patent 1,061,206 1657: 1642:U.S. patent 1,061,142 1555: 1399: 1096: 1075:Electromagnetic Motor 936: 921: 718: 699: 393: 386:Thermo Magnetic Motor 187: 32: 3445:Delphion IP Research 2552:Equivalent US patent 1118:Electrical Condenser 1005:Reciprocating Engine 973:Electrical Conductor 835:Electrical condenser 833:- 1891 December 8 - 831:Electrical Condenser 3797:" (2020 TV episode) 3763:Tower to the People 3703:Nikola Tesla Museum 3672:War of the currents 3455:Japan Patent Office 3204:on October 30, 2007 2925:Driving as a valve 2549:Date of application 2326:- 1896 September 22 1913:Nikola Tesla Museum 1909:Wireless Telegraphy 1882:U.S. patent RE11865 1848:- 1928 January 3 - 1762:Lightning-Protector 1628:U.S. patent 787,412 1620:System of Signaling 1614:U.S. patent 725,605 1606:Method of Signaling 1600:U.S. patent 723,188 1586:U.S. patent 685,958 1565:U.S. patent 685,957 1536:U.S. patent 685,956 1522:U.S. patent 685,955 1508:U.S. patent 685,954 1494:U.S. patent 685,953 1476:U.S. patent 685,012 1467:U.S. patent RE11865 1452:U.S. patent 655,838 1439:U.S. Patent 649,621 1411:U.S. Patent 645,576 1386:U.S. patent 613,809 1372:U.S. patent 613,735 1358:U.S. patent 611,719 1344:U.S. patent 609,251 1330:U.S. patent 609,250 1316:U.S. patent 609,249 1302:U.S. patent 609,248 1284:U.S. patent 609,247 1270:U.S. patent 609,246 1256:U.S. patent 609,245 1242:U.S. patent 593,138 1228:U.S. patent 583,953 1214:U.S. patent 577,671 1200:U.S. patent 577,670 1186:U.S. patent 568,180 1172:U.S. patent 568,179 1154:U.S. patent 568,178 1140:U.S. patent 568,177 1126:U.S. patent 568,176 1112:U.S. patent 567,818 1083:U.S. patent 555,190 1069:U.S. patent 524,426 1055:U.S. patent 517,900 1041:U.S. patent 514,973 1027:U.S. patent 514,972 1013:U.S. patent 514,170 999:U.S. patent 514,169 985:U.S. patent 514,168 967:U.S. patent 514,167 953:U.S. patent 512,340 941:; Early example of 908:U.S. patent 511,916 894:U.S. patent 511,915 880:U.S. patent 511,560 866:U.S. patent 511,559 852:U.S. patent 487,796 825:U.S. patent 464,667 811:U.S. patent 464,666 797:U.S. patent 462,418 783:U.S. patent 459,772 769:U.S. patent 455,069 755:U.S. patent 455,068 741:U.S. patent 455,067 727:U.S. patent 454,622 686:U.S. patent 447,921 672:U.S. patent 447,920 658:U.S. patent 445,207 644:U.S. patent 433,703 630:U.S. patent 433,702 616:U.S. patent 433,701 602:U.S. patent 433,700 588:U.S. patent 428,057 570:U.S. patent 424,036 556:U.S. patent 418,248 542:U.S. patent 417,794 528:U.S. patent 416,195 514:U.S. patent 416,194 500:U.S. patent 416,193 486:U.S. patent 416,192 472:U.S. patent 416,191 458:U.S. patent 413,353 444:U.S. patent 406,968 430:U.S. patent 405,859 416:U.S. patent 405,858 402:U.S. patent 401,520 380:U.S. patent 396,121 366:U.S. patent 390,820 352:U.S. patent 390,721 338:U.S. patent 390,415 324:U.S. patent 390,414 310:U.S. patent 390,413 296:U.S. patent 382,845 282:U.S. patent 382,282 268:U.S. patent 382,281 254:U.S. patent 382,280 240:U.S. patent 382,279 230:U.S. patent 381,970 216:U.S. patent 381,969 202:U.S. patent 381,968 174:U.S. patent 359,748 160:U.S. patent 350,954 146:U.S. patent 336,962 132:U.S. patent 336,961 115:U.S. patent 335,787 98:U.S. patent 335,786 84:U.S. patent 334,823 3766:(2015 documentary) 3687:In popular culture 3620: 3601:Wardenclyffe Tower 3586:Tesla's oscillator 3401: 3373:Cheney, Margaret, 2505:- 1889 December 19 2428:- 1921 September 2 2356:- 1898 December 13 1720: 1665: 1561: 1418:- 1900 March 20 - 1406: 1106: 947: 931: 914:Electric Generator 721: 713: 396: 196: 51:worldwide for his 38: 3853: 3852: 3430:FreePatentsOnline 3413:978-1-566-19266-8 3359:Johnston, Ben . " 3094:- 1910 October 21 3084:- 1900 November 6 3064:- 1899 January 31 3037: 3036: 2735:1896 September 22 2467:Electric Arc Lamp 2346:- 1897 October 21 2314:- 1889 December 3 2302:- 1889 December 3 2290:- 1889 October 22 2136:- 1894 February 8 2124:- 1894 February 8 2112:- 1886 February 9 2083: 2082: 1713:View in elevation 1686:Patents #101–#111 1164:the True Wireless 1089:Alternating Motor 16:(Redirected from 3878: 3871:Lists of patents 3733:New Yorker Hotel 3529:Polyphase system 3489: 3482: 3475: 3466: 3309: 3298: 3292: 3287: 3278: 3277: 3275: 3267: 3261: 3258: 3252: 3249: 3243: 3242: 3240: 3232: 3226: 3223: 3217: 3216: 3211: 3209: 3203: 3192: 3183: 3074:- 1900 August 14 3028:1923 February 15 2884:1911 February 24 2783:1898 December 24 2719:1894 February 17 2702:1894 February 17 2541: 2266:- 1900 August 14 1927: 1884: 1863: 1842: 1828: 1814: 1800: 1786: 1772: 1758: 1744: 1726: 1698: 1671: 1648:Fluid Propulsion 1644: 1630: 1616: 1602: 1588: 1567: 1538: 1524: 1510: 1496: 1478: 1469: 1454: 1388: 1374: 1360: 1346: 1332: 1318: 1304: 1286: 1272: 1258: 1244: 1230: 1216: 1202: 1188: 1174: 1156: 1142: 1128: 1114: 1085: 1071: 1057: 1047:Electrical Meter 1043: 1029: 1015: 1001: 987: 969: 955: 910: 896: 882: 868: 854: 842:Patents #51–#100 827: 813: 799: 785: 771: 761:Electrical Meter 757: 743: 729: 688: 674: 660: 646: 632: 618: 604: 590: 572: 558: 544: 530: 516: 502: 488: 474: 460: 446: 432: 418: 404: 382: 368: 354: 340: 326: 312: 298: 284: 270: 256: 242: 232: 218: 204: 176: 162: 148: 134: 117: 100: 86: 21: 3886: 3885: 3881: 3880: 3879: 3877: 3876: 3875: 3856: 3855: 3854: 3849: 3835:SI derived unit 3787:The Current War 3691: 3660: 3621: 3610: 3549:Telegeodynamics 3504: 3498: 3493: 3426: 3335: 3333:Further reading 3318: 3313: 3312: 3299: 3295: 3288: 3281: 3273: 3269: 3268: 3264: 3259: 3255: 3250: 3246: 3238: 3234: 3233: 3229: 3224: 3220: 3207: 3205: 3201: 3190: 3185: 3184: 3177: 3172: 3147: 3121: 3104:- 1922 March 31 3042: 3010:1923 February 6 2992:1923 February 6 2974:1923 February 6 2865:1905 October 12 2751:1897 October 25 2651:1889 December 3 2634:1889 December 3 2617:1889 October 22 2555:Name of patent 2539: 2532:- 1906 April 17 2459:- 1886 April 24 2435: 2418:- 1921 March 24 2376:- 1921 March 24 2196:- 1905 April 17 2184:- 1889 April 16 2088: 2002:United Kingdom 1921: 1919:Other countries 1901: 1880: 1876: 1874:Reissued patent 1859: 1838: 1832:Frequency-Meter 1824: 1810: 1796: 1782: 1776:Speed Indicator 1768: 1754: 1748:Speed-Indicator 1740: 1722: 1715: 1694: 1688: 1667: 1640: 1626: 1612: 1598: 1584: 1563: 1534: 1520: 1506: 1492: 1474: 1465: 1450: 1384: 1370: 1356: 1342: 1328: 1314: 1300: 1282: 1268: 1254: 1240: 1226: 1212: 1198: 1184: 1170: 1152: 1138: 1124: 1110: 1081: 1067: 1053: 1039: 1025: 1011: 997: 983: 977:Coaxial cabling 965: 951: 906: 892: 878: 864: 850: 844: 823: 809: 795: 781: 767: 753: 739: 725: 684: 670: 656: 642: 628: 614: 600: 586: 568: 554: 540: 526: 512: 498: 484: 470: 456: 442: 428: 414: 400: 378: 364: 350: 336: 322: 308: 294: 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3095: 3085: 3075: 3065: 3054: 3053: 3050:name of patent 3041: 3038: 3035: 3034: 3031: 3029: 3026: 3021: 3017: 3016: 3013: 3011: 3008: 3003: 2999: 2998: 2995: 2993: 2990: 2985: 2981: 2980: 2977: 2975: 2972: 2967: 2963: 2962: 2959: 2957: 2954: 2949: 2945: 2944: 2941: 2939: 2936: 2931: 2927: 2926: 2923: 2921: 2918: 2913: 2909: 2908: 2905: 2903: 2900: 2895: 2891: 2890: 2887: 2885: 2882: 2877: 2873: 2872: 2869: 2866: 2863: 2858: 2854: 2853: 2850: 2848: 2845: 2842: 2838: 2837: 2834: 2832: 2829: 2826: 2822: 2821: 2818: 2816: 2813: 2810: 2806: 2805: 2802: 2800: 2799:1900 August 14 2797: 2794: 2790: 2789: 2786: 2784: 2781: 2778: 2774: 2773: 2770: 2768: 2765: 2762: 2758: 2757: 2754: 2752: 2749: 2746: 2742: 2741: 2738: 2736: 2733: 2730: 2726: 2725: 2722: 2720: 2717: 2714: 2710: 2709: 2706: 2703: 2700: 2697: 2693: 2692: 2689: 2686: 2683: 2680: 2676: 2675: 2672: 2669: 2666: 2663: 2659: 2658: 2655: 2652: 2649: 2646: 2642: 2641: 2638: 2635: 2632: 2629: 2625: 2624: 2621: 2618: 2615: 2612: 2608: 2607: 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2225:GB11473 2213:GB11293 2007:Number 1963:Hungary 1960:Germany 1954:Denmark 1942:Belgium 1939:Austria 1892:Faraday 1675:Turbine 1462:Faraday 61:Britain 49:patents 43:was an 3411:  3399:, 1994 3381:  3367:  3353:  3165:(book) 2537:France 2433:Canada 2201:GB8575 2189:GB8200 2177:GB6527 2165:GB6502 2153:GB6481 2141:GB2975 2129:GB2812 2117:GB2801 2105:GB1877 1996:Sweden 1987:Russia 1981:Norway 1975:Mexico 1957:France 1948:Canada 1945:Brazil 1098:567818 939:514167 923:512340 701:454622 189:381968 65:Canada 63:, and 3802:Tesla 3771:Tesla 3665:Other 3274:(PDF) 3239:(PDF) 3202:(PDF) 3191:(PDF) 3170:Notes 3040:Spain 1990:Spain 1972:Japan 1969:Italy 1966:India 3830:Boat 3409:ISBN 3379:ISBN 3365:ISBN 3351:ISBN 3210:2010 1951:Cuba 1850:VTOL 3395:by 3377:, 2079:29 3862:: 3306:ed 3282:^ 3212:. 3193:. 3178:^ 3110:- 3100:- 3090:- 3080:- 3070:- 3060:- 3048:- 3020:28 3002:27 2984:26 2966:25 2948:24 2930:23 2912:22 2894:21 2876:20 2857:19 2841:18 2825:17 2809:16 2793:15 2777:14 2761:13 2745:12 2729:11 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