Nikola Tesla's US patents, indexed

An indexed list of 110 US patents issued to Nikola Tesla between January 1886 and October 1927, grouped by era: the early dynamos and arc lamps, the alternating-current motor patents of 1888, the transmission-of-power series, the wireless-energy patents of 1900–1905 including the radiant-energy quartet, and the late mechanical patents ending with aerial transportation in 1927. Every entry carries its patent number, official title and issue date, and links to the full patent at Google Patents. The same patents are digitised and readable inside Tesla Declassified, where an AI recreation of Tesla answers questions citing the actual pages.

• 110 US patents issued to Nikola Tesla from 1886 to 1927, indexed by era.
• Patent number, official title and issue date for every entry, each linked to the official record at Google Patents.
• Includes the 1888 electro-magnetic motor patents, the 1898 remote-control patent (US 613,809), the 1901 radiant-energy quartet and the 1913 bladeless turbine.
• Patent numbers, titles and dates are public USPTO record.
• The full patents are digitised inside the Tesla Declassified app, cited page by page.

Frequently asked questions

How many US patents did Nikola Tesla hold?

This index catalogues 110 US patents issued to Tesla between January 1886 and October 1927. Published counts vary slightly by how reissues and shared filings are treated (Tesla also held hundreds of patents internationally), but these 110 are the US grants digitised in the Tesla Declassified archive.

What are Nikola Tesla's most famous patents?

The 1888 electro-magnetic motor patents (US 381,968 and its companions) that made alternating current practical; US 613,809 of 1898, the method for controlling moving vessels or vehicles, the birth of radio remote control; the 1901 radiant-energy and natural-media quartet (US 685,953 through 685,956 with US 685,957); and US 1,061,206 of 1913, the bladeless turbine.

Where can I read Tesla's patents in full for free?

Every entry in this index links to the complete official patent at Google Patents, free. The same patents are digitised inside the Tesla Declassified Android app alongside FBI File 100-2237 and the rest of the 3,049-page archive, where every answer cites the actual page.

1886–1889 · Dynamos, arc lamps and the AC motor

• US 334,823: Commutator For Dynamo Electric Machines (January 26, 1886)
• US 335,786: Electric Arc Lamp (February 9, 1886)
• US 335,787: Electric Arc Lamp (February 9, 1886)
• US 336,961: Regulator For Dynamo Electric Machines (March 2, 1886)
• US 336,962: Regulator For Dynamo Electric Machines (March 2, 1886)
• US 350,954: Regulator For Dynamo Electric Machines (October 19, 1886)
• US 359,748: Dynamo Electric Machine (March 22, 1887)
• US 381,968: Electro Magnetic Motor (May 1, 1888)
• US 381,969: Electro Magnetic Motor (May 1, 1888)
• US 381,970: System Of Electrical Distribution (May 1, 1888)
• US 382,279: Electro Magnetic Motor (May 1, 1888)
• US 382,280: Electrical Transmission Of Power (May 1, 1888)
• US 382,281: Electrical Transmission Of Power (May 1, 1888)
• US 382,282: Method Of Converting And Distributing Electric Currents (May 1, 1888)
• US 382,845: Commutator For Dynamo Electric Machines (May 15, 1888)
• US 390,413: System Of Electrical Distribution (October 2, 1888)
• US 390,414: Dynamo Electric Machine (October 2, 1888)
• US 390,415: Dynamo Electric Machine Or Motor (October 2, 1888)
• US 390,721: Dynamo Electric Machine (October 9, 1888)
• US 390,820: Regulator For Alternate Current Motors (October 9, 1888)
• US 396,121: Thermo Magnetic Motor (January 15, 1889)
• US 401,520: Method Of Operating Electro Magnetic Motors (April 16, 1889)
• US 405,858: Electro Magnetic Motor (June 25, 1889)
• US 405,859: Method Of Electrical Power Transmission (June 25, 1889)
• US 406,968: Dynamo Electric Machine (July 16, 1889)
• US 413,353: Method Of Obtaining Direct Of Alternating Currents (October 22, 1889)
• US 416,191: Electro Magnetic Motor (December 3, 1889)
• US 416,192: Method Of Operating Electro Magnetic Motors (December 3, 1889)
• US 416,193: Electro Magnetic Motor (December 3, 1889)
• US 416,194: Electric Motor (December 3, 1889)
• US 416,195: Electro Magnetic Motor (December 3, 1889)
• US 417,794: Armature For Electric Machines (December 24, 1889)
• US 418,248: Electro Magnetic Motor (December 31, 1889)

1890–1893 · Alternating currents and high frequency

• US 424,036: Electro Magnetic Motor (May 25, 1890)
• US 428,057: Pyromagneto Electric Generator (May 13, 1890)
• US 433,701: Alternating Current Motor (August 5, 1890)
• US 433,702: Eletrical Transformer Or Induction Device (August 5, 1890)
• US 433,703: Electro Magnetic Motor (August 5, 1890)
• US 445,207: Electro Magnetic Motor (January 27, 1891)
• US 447,920: Method Of Operating Arc Lamps (March 10, 1891)
• US 447,921: Alternating Electric Current Generator (March 10, 1891)
• US 454,622: System Of Electric Lighting (June 23, 1891)
• US 455,067: Electro Magnetic Motor (June 30, 1891)
• US 455,068: Electrical Meter (June 30, 1891)
• US 455,069: Electric Incandescent Lamp (June 30, 1891)
• US 459,772: Electro Magnetic Motor (September 22, 1891)
• US 462,418: Method Of And Apparatus For Electrical Conversion And Distribution (November 3, 1891)
• US 464,666: Electro Magnetic Motor (December 8, 1891)
• US 464,667: Electrical Condensor (December 8, 1891)
• US 487,796: System Of Electrical Transmission Of Power (December 13, 1892)
• US 511,559: Electrical Transmission Of Power (December 26, 1893)
• US 511,560: System Of Electrical Transmission Of Power (December 26, 1893)

1894–1899 · Transmission of power

• US 511,915: Electrical Transmission Of Power (January 2, 1894)
• US 511,916: Electric Generator (January 2, 1894)
• US 512,340: Coil For Electro Magnets (January 9, 1894)
• US 514,167: Electrical Conductor (February 6, 1894)
• US 514,168: Means For Generating Electric Currents (February 6, 1894)
• US 514,169: Reciprocating Engine (February 6, 1894)
• US 514,170: Incandescent Electric Light (February 6, 1894)
• US 514,972: Electric Railway System (February 20, 1894)
• US 514,973: Electrical Meter (February 20, 1894)
• US 517,900: Steam Engine (April 10, 1894)
• US 524,426: Electromagnetic Motor (August 14, 1894)
• US 555,190: Alternating Motor (February 25, 1896)
• US 567,818: Electrical Condenser (September 15, 1896)
• US 568,176: Apparatus For Producing Electric Currents Of High Frequency And Potential (September 22, 1896)
• US 568,177: Apparatus For Producing Ozone (September 22, 1896)
• US 568,178: Method Of Regulating Apparatus For Producing Currents Of High Frequency (September 22, 1896)
• US 568,179: Method Of And Apparatus For Producing Currents Of High Frequency (September 22, 1896)
• US 568,180: Apparatus For Producing Electric Currents Of High Frequency (September 22, 1896)
• US 577,670: Apparatus For Producing Electric Currents Of High Frequency (February 23, 1897)
• US 577,671: Manufacture Of Electrical Condensers, Coils, &C. (February 23, 1897)
• US 583,953: Apparatus For Producing Currents Of High Frequency (June 18, 1897)
• US 593,138: Electrical Transformer (November 2, 1897)
• US 609,245: Electrical Circuit Controller (August 16, 1898)
• US 609,246: Electric Circuit Controller (August 16, 1898)
• US 609,247: Electric Circuit Controller (August 16, 1898)
• US 609,248: Electric Circuit Controller (August 16, 1898)
• US 609,249: Electric Circuit Controller (August 16, 1898)
• US 609,250: Electrical Igniter For Gas Engines (August 16, 1898)
• US 609,251: Electric Circuit Controller (August 16, 1898)
• US 611,719: Electrical Circuit Controller (October 4, 1898)
• US 613,735: Electric Circuit Controller (November 8, 1898)
• US 613,809: Method Of And Apparatus For Controlling Mechanism Of Moving Vessels Or Vehicles (November 8, 1898)

1900–1905 · Wireless energy and the great patents

• US 645,576: System Of Transmission Of Electrical Energy (March 20, 1900)
• US 649,621: Apparatus For Transmission Of Electrical Energy (May 15, 1900)
• US 655,838: Method Of Insulating Electric Conductors (August 14, 1900)
• US 685,012: Means For Increasing The Intensity Of Electrical Oscillations (October 22, 1901)
• US 685,953: Method Of Intensifying And Utilizing Effects Transmitted Through Natural Media (November 5, 1901)
• US 685,954: Method Of Utilizing Effects Transmitted Through Natural Media (November 5, 1901)
• US 685,955: Apparatus For Utilizing Effects Transmitted From A Distance To A Receiving Device Through Natural Media (November 5, 1901)
• US 685,956: Apparatus For Utilizing Effects Transmitted Through Natural Media (November 5, 1901)
• US 685,957: Apparatus For The Utilization Of Radiant Energy (November 5, 1901)
• US 685,958: Method For Utilizing Radiant Energy (November 5, 1901)
• US 723,188: Method Of Signaling (March 17, 1903)
• US 725,605: Sytem Of Signaling (April 14, 1903)
• US 787,412: Art Of Transmitting Electrical Energy Through The Natural Mediums (April 18, 1905)

1906–1928 · Turbines, mechanics and flight

• US 1,061,142: Fluid Propulsion (May 6, 1913)
• US 1,061,206: Turbine (May 6, 1913)
• US 1,113,716: Fountain (October 13, 1914)
• US 1,119,732: Apparatus For Transmitting Electrical Energy (December 1, 1914)
• US 1,209,359: Speed Indicator (December 19, 1916)
• US 1,266,175: Lightning Protector (May 14, 1918)
• US 1,274,816: Speed Indicator (August 6, 1918)
• US 1,314,718: Ship’S Log (September 2, 1919)
• US 1,329,559: Valvular Conduit (February 3, 1920)
• US 1,365,547: Flow Meter (January 11, 1921)
• US 1,402,025: Frequency Meter (January 3, 1922)
• US 1,655,113: Method Of Aerial Transportation (September 9, 1921)
• US 1,655,114: Apparatus For Aerial Transportation (October 4, 1927)

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