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U.S. patent 613,809 - Method of and Apparatus for Controlling Mechanism of Moving Vehicle or Vehicles - 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 ...
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]
Marconi advertisement from the 26 October 1923 issue of The Radio Times, threatening prosecution for infringements of Marconi patents. Marconi's "Wireless Telegraph and Signal Company" was formed on 20 July 1897 after a British patent for wireless technology was granted on 2 July that year. The company opened the world's first radio factory on ...
Looking to expand their efforts worldwide, a roster of subsidiary companies was established, holding regional rights to the Marconi patents. The Marconi Wireless Telegraph Company of America was incorporated in New Jersey [2] on November 8, 1899 as the first subsidiary company. It was granted the "sole right to use and exploit the Marconi ...
A Marconi station built in 1902 at South Wellfleet, Cape Cod, Massachusetts (initial callsign CC, MCC 1908 to 1911, finally WCC from 1911,) transmitted its first telegraphic message via spark gap transmitter in 1903 from what is now known as the National Park Service "Marconi Area," about a mile north of the entrance to Marconi Beach. Marine ...
As part of worldwide expansion, in 1899 American Marconi was organized as a subsidiary company, holding the rights to use the Marconi patents in the United States and Cuba. [3] In 1912 it took over the assets of the bankrupt United Wireless Telegraph Company , and from that point forward it became the dominant radio communications company in ...
The first transmission received on the continent of North America by Marconi was at Signal Hill, St. John's, Newfoundland and Labrador in 1901; Glace Bay, Nova Scotia was the site of the first such two-way transmission, in 1902. [2] One of the station's most notable roles occurred with the sinking of the RMS Titanic in April 1912.
[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.