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Marconi transmitted radio signals for about 1.5 miles (2.4 km) at the end of 1895. [102] Marconi was awarded a patent for radio with British patent No. 12,039, Improvements in Transmitting Electrical Impulses and Signals and in Apparatus There-for. The complete specification was filed 2 March 1897.
Morgan was to receive a controlling share in the company as well as half of all the patent income. Tesla's decision in July 1901 to scale up the facility and add his ideas of wireless power transmission to better compete with Guglielmo Marconi's new radio based telegraph system was met with Morgan's refusal to fund the changes. Wardenclyffe ...
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 ...
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 ...
[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]
The matter from the old "Invention of Radio" text is all in History of radio, except for the Tesla and Marconi matter, which are in separate pages, as stated above. I have copied relevant matter about Tesla and Marconi into Great Radio Controversy, but I did not delete it from other pages. Anthony Appleyard 13:43, 22 September 2006 (UTC)
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ISBN 0-910077-00-2; Cheney, Margaret, Tesla: man out of time, ISBN 0-7432-1536-2; The Complete Patents of Nikola Tesla by Jim Glenn, 1994. The Complete Patents of Nikola Tesla (ISBN 978-1-566-19266-8) is a book compiled and edited by Jim Glenn detailing the patents of Nikola Tesla.