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Before the discovery of electromagnetic waves and the development of radio communication, there were many wireless telegraph systems proposed and tested. [4] In April 1872 William Henry Ward received U.S. patent 126,356 for a wireless telegraphy system where he theorized that convection currents in the atmosphere could carry signals like a telegraph wire. [5]
This "four sevens" patent — so named because Marconi's U.S. patent No. 763,772 was a counterpart to the original filing, British patent No. 7,777 — was also found to be invalid, with the court ruling that it had been anticipated by John Stone Stone's U.S. patent 714,756 as well as those by Lodge and Tesla. The verdict stated that “Marconi ...
The Supreme Court came within one vote of overturning the Bell patent because of the eloquence of lawyer Lysander Hill for the Peoples Telephone Company. [1] In a lower court, the Peoples Telephone Company stock rose briefly during the early proceedings but dropped after its claimant, Daniel Drawbaugh , took the stand and testified: "I don't ...
1943: the Supreme Court of the United States, in a case on radio patents involving the U.S. government vs the Marconi Company, restores some of the prior patents of Oliver Lodge, John Stone Stone, and Nicola Tesla.
[77] [33] Tesla sued Marconi's company for patent infringement but didn't have the resources to pursue the action. In 1943 the US Supreme Court invalidated the inductive coupling claims of Marconi's patent [78] due to the prior patents of Lodge, Tesla, and Stone, but this came long after spark transmitters had become obsolete. [71] [63]
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In 1915, Tesla attempted to sue the Marconi Company for infringement of his wireless tuning patents. Marconi's initial radio patent had been awarded in the US in 1897, but his 1900 patent submission covering improvements to radio transmission had been rejected several times, before it was finally approved in 1904, on the grounds that it ...
Tesla has one simple request, and that is to have cars that have frickin' laser beams attached to their hoods. As Electrek discovered, Tesla successfully obtained the patent from the U.S. Patent ...