Nikola Tesla Patents

Nikola Tesla made his first discoveries and inventions on the eighties of the last century. Searching for a non-commutator motor which would have eliminated major defects of Graham's direct current motor, in 1882 Tesla brilliantly invented the multiphase alternating current induction motor. At the same time this motor was the solution which made long-distance energy transmission possible, due to the possibility of transforming alternating currents into high voltage for more efficient transmission and low voltage for practical use.

In the following two years Tesla made futile efforts to arouse interest in European experts and ensure funds for realization of the new system of electric power generation, transmission and utilization. Finally, in 1884, he went to the USA with the recommendation from his employer in Edison's Paris branch. Edison, who was already famous and rich owing to his numerous patents and a series of inventions, immediately offered a job to Tesla, but was not interested in his alternating current, system. So their brief encounter ended and Tesla went his own way without Edison's encouragement and understanding.

After a seven-year break Tesla recommenced applying for patents, but this time in the field of turbines, pumps, fluids, lightning protectors, flow-meters and speed indicators. The majority of these patents were applied for in 1916. 'The last two patents Tesla applied for in the USA in 1921 and 1927 were in the domain of avionics.

The total number of patents issued to Nikola Tesla in the USA according to the evidence of the Nikola Tesla Museum in Belgrade amounted to 112. Here are 113 you can read by downloading the Acrobat files. plus additional British and Canadian Patents you never heard of:

US Patent 11,865 Method Of Insulating Electric Conductors
US Patent 334,823 Commutator For Dynamo-Electric Machines
US Patent 335,786 Electric-Arc Lamp
US Patent 335,787 Electric-Arc Lamp
US Patent 336,961 Regulator For Dynamo-Electric Machines
US Patent 336,962 Regulator For Dynamo-Electric Machines
US Patent 350,954 Regulator For Dynamo-Electric Machines
US Patent 359,748 Dynamo-Electric Machine
US Patent 381,968 Electro-Magnetic Motor
US Patent 381,969 Electro-Magnetic Motor
US Patent 381,970 System Of Electrical Distribution
US Patent 382,279 Electro-Magnetic Motor
US Patent 382,280 Electrical Transmission Of Power
US Patent 382,281 Electrical Transmission Of Power
US Patent 382,282 Method Of Converting And Distributing Electric Currents
US Patent 382,845 Commutator For Dynamo-Electric Machines
US Patent 390,413 System Of Electrical Distribution
US Patent 390,414 Dynamo-Electric Machine
US Patent 390,415 Dynamo-Electric Machine Or Motor
US Patent 390,721 Dynamo-Electric Machine
US Patent 390,820 Regulator For Alternate-Current Motors
US Patent 396,121 Thermo-Magnetic Motor
US Patent 401,520 Method Of Operating Electro-Magnetic Motors
US Patent 405,858 Electro-Magnetic Motor
US Patent 405,859 Method Of Electrical Power Transmission
US Patent 406,968 Dynamo-Electric Machine
US Patent 413,353 Method Of Obtaining Direct From Alternating Currents
US Patent 416,191 Electro-Magnetic Motor
US Patent 416,192 Method Of Operating Electro-Magnetic Motors
US Patent 416,193 Electro-Magnetic Motor
US Patent 416,194 Electric Motor
US Patent 416,195 Electro-Magnetic Motor
US Patent 417,794 Armature For Electric Machines
US Patent 418,248 Electro-Magnetic Motor
US Patent 424,036 Electro-Magnetic Motor
US Patent 428,057 Pyromagneto-Electric Generator
US Patent 433,700 Alternating-Current Electro-Magnetic Motor
US Patent 433,701 Alternating-Current Motor
US Patent 433,702 Electrical Transformer Or Induction Device
US Patent 433,703 Electro-Magnetic Motor
US Patent 445,207 Electro-Magnetic Motor
US Patent 447,920 Method Of Operating Arc-Lamps
US Patent 447,921 Alternating Electric Current Generator
US Patent 454,622 System Of Electric Lighting
US Patent 455,067 Electro-Magnetic Motor
US Patent 455,068 Electrical Meter
US Patent 455,069 Electric Incandescent Lamp
US Patent 459,772 Electro-Magnetic Motor
US Patent 462,418 Method Of And Apparatus For Electrical Conversion And Distribution
US Patent 464,666 Electro-Magnetic Motor
US Patent 464,667 Electrical Condenser
US Patent 487,796 System Of Electrical Transmission Of Power
US Patent 511,559 Electrical Transmission Of Power
US Patent 511,560 System Of Electrical Power Transmission
US Patent 511,915 Electrical Transmission Of Power
US Patent 511,916 Electric Generator
US Patent 512,340 (HTML) Coil For Electro-magnets
US Patent 512,340 (PDF) Coil For Electro-Magnets
US Patent 514,167 Electrical Conductor
US Patent 514,168 Means For Generating Electric Currents
US Patent 514,169 Reciprocating Engine
US Patent 514,170 Incandescent Electric Light
US Patent 514,972 Electric Railway System
US Patent 514,973 Electrical Meter
US Patent 517,900 Steam Engine
US Patent 524,426 Electromagnetic Motor
US Patent 555,190 Alternating Motor
US Patent 567,818 Electrical Condenser
US Patent 568,176 Apparatus For Producing Electric Currents Of High Frequency And Potential
US Patent 568,177 Apparatus For Producing Ozone
US Patent 568,178 Method Of Regulating Apparatus For Producing Electric Currents Of High Frequency
US Patent 568,179 Method Of And Apparatus For Producing Currents Of High Frequency
US Patent 568,180 Apparatus For Producing Electrical Currents Of High Frequency
US Patent 577,670 Apparatus For Producing Electric Currents Of High Frequency
US Patent 577,671 Manufacture Of Electrical Condensors, Coils And Similar Devices
US Patent 583,953 Apparatus For Producing Currents Of High Frequency
US Patent 593,138 Electrical Transformer
US Patent 609,245 Electrical Circuit Controller
US Patent 609,246 Electric Circuit Controller
US Patent 609,247 Electric Circuit Controller
US Patent 609,248 Electric Circuit Controller
US Patent 609,249 Electric Circuit Controller
US Patent 609,250 Electrical Igniter For Gas Engines
US Patent 609,251 Electric Circuit Controller
US Patent 611,719 Electrical Circuit Controller
US Patent 613,735 Electric Circuit Controller
US Patent 613,809 Method Of And Apparatus For Controlling Mechanism Of Moving Vessels Or Vehicles
US Patent 645,576 System Of Transmission Of Electrical Energy
US Patent 649,621 Apparatus For Transmission Of Electrical Energy
US Patent 655,838 Method Of Insulating Electric Conductors
US Patent 685,012 Means For Increasing The Intensity Of Electrical Oscillations
US Patent 685,953 Method Of Intensifying And Utilizing Effects Transmitted Through Natural Media
US Patent 685,954 Method Of Utilizing Effects Transmitted Through Natural Media
US Patent 685,955 Apparatus For Utilizing Effects Transmitted From A Distance To A Receiving Device Through Natural Media
US Patent 685,956 Apparatus For Utilizing Effects Transmitted Through Natural Media
US Patent 685,957 Apparatus For The Utilization of Radiant Energy
US Patent 685,958 Method Of Utilizing of Radiant Energy
US Patent 723,188 Method Of Signaling
US Patent 725,605 System Of Signaling
US Patent 787,412 Art Of Transmitting Electrical Energy Through The Natural Mediums
US Patent 1,061,142 Fluid Propulsion
US Patent 1,061,206 Turbine
US Patent 1,113,716 Fountain
US Patent 1,119,732 Apparatus For Transmitting Eleectrical Energy
US Patent 1,209,359 Speed Indicator
US Patent 1,266,175 Lightning Protector
US Patent 1,274,816 Speed Indicator
US Patent 1,314,718 Ship's Log
US Patent 1,329,559 Valvular Conduit
US Patent 1,365,547 Flow Meter
US Patent 1,402,025 Frequency Meter
US Patent 1,655,113 Method Of Aerial Transportation
US Patent 1,655,114 Apparatus For Aerial Transportation
British Patent 1,877 Improvements in Electric Lamps
British Patent 2,801 Improvements in Reciprocating Engines and Means for Regulating the Period of the same
British Patent 2,812 Improvements in Methods of and Apparatus for the Generation of Electric Currents of Defined Period
British Patent 2,975 Improvements in Dynamo Electric Machines
British Patent 6,481 Improvements relating to the Electrical Transmission of Power and to Apparatus therefor
British Patent 6,502 Improvements relating to the Generation and Distribution of Electric Currents and to Apparatus therefor
British Patent 6,527 Improvements relating to Electro-motors
British Patent 8,200 Improvements relating to the Transmission of Electrical Energy
British Patent 8,575 Improved Methods of and Apparatus for Generating and Utilizing Electric Energy for Lighting Purposes
British Patent 11,293 Improvements relating to the Utilization of Electromagnetic, Light, or other like Radiations Effects or Disturbances transmitted through the Natural Media and to Apparatus therefor
British Patent 11,473 Improvements in Alternating Current Electro-magnetic Motors
British Patent 13,563 Improvements in, and relating to, the Transmission of Electrical Energy
British Patent 14,550 Improvements relating to the Insulation of Electric Conductors
British Patent 14,579 Improvements in and relating to the Transmission of Electrical Energy
British Patent 16,709 Improvements relating to the Conversion of Alternating into Direct Electric Currents
British Patent 19,420 Improvements in Alternating Current Electro-magnetic Motors
British Patent 19,426 Improvements in the Construction and Mode of Operating Alternating Current Motors
Canadian Patent 24,033 Improvements in Dynamo Electric Machines
Canadian Patent 29,537 Improvements in Methods of and Apparatus for the Electrical Transmission of Power
Canadian Patent 30,172 Improvements in Methods of and Apparatus for Converting and Distributing Electric Currents
Canadian Patent 33,317 Improvements in Methods and Apparatus for Converting Alternating into Direct Currents
Canadian Patent 135,174 Improvements in Fluid Propulsion (Tesla Pump)
Canadian Patent 142,352 Improvement in the Art of Transmitting Electrical Energy Through the Natural Mediums

Other pages on Tesla: Article, Biography Part One, Biography Part Two, Patents, Photographs, Statue, Transmitter