Tesla Patents
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685,956 - Apparatus for Utilizing Effects Transmitted through Natural MediaCategory: Wireless Country: United States Application Date: November 2nd, 1899 Issue Date: November 5th, 1901 
My invention is particularly useful in connection with methods and apparatus for operating distant receiving devices by means of electrical disturbances produced by proper transmitters and conveyed to such receiving devices through the natural media; but it obviously has a wider range of applicability and may be... more >>
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685,012 - Means for Increasing the Intensity of Electrical OscillationsCategory: Wireless Country: United States Application Date: March 21st, 1900 Issue Date: October 22nd, 1901
It is well known that when electrical impulses are impressed upon a circuit adapted to oscillate freely the intensity of the oscillations developed in the same is dependent on the magnitude of its physical constants and the relation of the periods of the impressed and of the free oscillations. For the attainment of... more >>
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787,412 - Art of Transmitting Electrical Energy through the Natural MediumsCategory: Wireless Country: United States Application Date: May 16th, 1900 Issue Date: April 18th, 1905
It is known since a long time that electric currents may be propagated through the earth, and this knowledge has been utilized in many ways in the transmission of signals and the operation of a variety of receiving devices remote from the source of energy, mainly with the object of dispensing with a return... more >>
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655,838 - Method of Insulating Electric ConductorsCategory: Miscellaneous Country: United States Application Date: June 15th, 1900 Issue Date: April 14th, 1900
It has long been known that many substances which are more or less conducting when in the fluid condition become insulators when solidified. Thus water, which is in a measure conducting, acquires insulating properties when converted into ice. The existing information on this subject, however, has been heretofore of a... more >>
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725,605 - System of SignalingCategory: Wireless Country: United States Application Date: July 16th, 1900 Issue Date: April 14th, 1903
In certain systems for transmitting intelligible messages or governing the movements and operations of distant automata electrical impulses or disturbances produced by suitable apparatus are conveyed through the natural media to a distant receiving-circuit capable of responding to the impulses, and thereby effecting... more >>
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11,865 - Method of Insulating Electric ConductorsCategory: Miscellaneous Country: United States Application Date: September 21st, 1900 Issue Date: October 23rd, 1900
It has long been known that many substances which are more or less conducting when in the fluid condition become insulators when solidified. Thus water, which is in a measure conducting, acquires insulating properties when converted into ice. The existing information on this subject, however, has been heretofore of a... more >>
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685,957 - Apparatus for the Utilization of Radiant EnergyCategory: Radiant Energy Country: United States Application Date: March 21st, 1901 Issue Date: November 5th, 1901
It is well known that certain radiations—such as those of ultra-violet light, cathodic, Roentgen rays, or the like—possess the property of charging and discharging conductors of electricity, the discharge being particularly noticeable when the conductor upon which the rays impinge is negatively... more >>
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685,958 - Method of Utilizing of Radiant EnergyCategory: Radiant Energy Country: United States Application Date: March 21st, 1901 Issue Date: November 5th, 1901
It is well known that certain radiations—such as those of ultra-violet light, cathodic, Roentgen rays, or the like—possess the property of charging and discharging conductors of electricity, the discharge being particularly noticeable when the conductor upon which the rays impinge is negatively... more >>
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723,188 - Method of SignalingCategory: Wireless Country: United States Application Date: June 14th, 1901 Issue Date: March 17th, 1903
In certain systems for transmitting intelligible messages or governing the movements and operations of distant automata electrical impulses or disturbances produced by suitable apparatus are conveyed through the natural media to a receiving-circuit capable of responding to the impulses, and thereby effecting the... more >>
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1,119,732 - Apparatus for Transmitting Electrical EnergyCategory: Wireless Country: United States Application Date: January 18th, 1902 Issue Date: December 1st, 1914
In endeavoring to adapt currents or discharges of very high tension to various valuable uses, as the distribution of energy through wires from central plants to distant places of consumption, or the transmission of powerful disturbances to great distances, through the natural or non-artificial media. I have... more >>
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