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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.
The Telephone Cases, 126 U.S. 1 (1888), were a series of U.S. court cases in the 1870s and the 1880s related to the invention of the telephone, which culminated in an 1888 decision of the U.S. Supreme Court that upheld the priority of the patents belonging to Alexander Graham Bell.
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 ...
[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)
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 ...
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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 ...