Guglielmo Marconi

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Guglielmo Marconi : biography

25 April 1874 – 20 July 1937

On June 21, 1943, the United States Supreme Court reversed itself, granting patent rights to Tesla, not Marconi, for the invention of radio. This was on account of Marconi’s use of 17 of Tesla’s patents to achieve his first transatlantic transmission.

Notes

Patents

British patents

  • "Improvements in Transmitting Electrical impulses and Signals, and in Apparatus therefor". Date of Application 2 June 1896; Complete Specification Left, 2 March 1897; Accepted, 2 July 1897 (later claimed by Oliver Lodge to contain his own ideas which he failed to patent).
  • "Improvements in Apparatus for Wireless Telegraphy". Date of Application 26 April 1900; Complete Specification Left, 25 February 1901; Accepted, 13 April 1901.
  • British patent No. 5113 (1904) "Improvements in Transmitters suitable for Wireless Telegraphy". Date of Application 1 March 1904; Complete Specification Left, 30 November 1904; Accepted, 19 January August 1905.
  • British patent No. 21640 (1904) "Improvements in Apparatus for Wireless Telegraphy". Date of Application 8 October 1904; Complete Specification Left, 6 July 1905; Accepted, 10 August 1905.
  • British patent No. 14788 (1904) "Improvements in or relating to Wireless Telegraphy". Date of Application 18 July 1905; Complete Specification Left, 23 January 1906; Accepted, 10 May 1906.

US patents

  • "Transmitting electrical signals", (using Ruhmkorff coil and Morse code key) filed December 1896, patented July 1897
  • "Apparatus employed in wireless telegraphy".
  • "Apparatus employed in wireless telegraphy".
  • "Apparatus employed in wireless telegraphy".
  • "Apparatus employed in wireless telegraphy".
  • "Apparatus employed in wireless telegraphy".
  • "Apparatus employed in wireless telegraphy".
  • "Apparatus employed in wireless telegraphy".
  • "Receiver for electrical oscillations".
  • "Wireless signaling system".
  • "Wireless telegraphy". Filed 13 October 1903; Issued 13, 1905.
  • "Apparatus for wireless telegraphy" (later practical version of system)
  • "Wireless telegraphy system". Filed 19 November 1901; Issued 19 April 1904.
  • "Wireless signaling system". Filed 10 September 1903; Issued 24 May 1904.
  • "Apparatus for wireless telegraphy" (Four tuned system; this innovation was predated by N. Tesla, O. Lodge, and J. S. Stone)
  • "Wireless telegraphy". Filed 13 October 1903
  • "Wireless telegraphy". Filed 13 October 1903; Issued 13 June 1905.
  • "Wireless telegraphy". Filed 28 November 1902; Issued 14 April 1908.
  • "Wireless telegraphy".
  • "Detecting electrical oscillations". Filed 2 February 1903; Issued 14 April 1908.
  • "Wireless telegraphy".
  • "Transmitting apparatus for wireless telegraphy". Filed 10 April 1908; Issued 28 September 1909.
  • "Apparatus for wireless telegraphy".
  • "Apparatus for wireless telegraphy". Filed 10 April 1908; Issued 28 September 1909.
  • "Apparatus for wireless telegraphy". Filed 31 March 1909; Issued 12 April 1910.
  • "Transmitting apparatus for wireless telegraphy". Filed 15 July 1910; Issued 11 July 1911.
  • "Means for generating alternating electric currents". Filed 27 January 1914; Issued 7 July 1914.
  • "Transmitter for wireless telegraphy". Filed 20 July 1908.
  • "Transmitting apparatus for use in wireless telegraphy and telephony". Filed 31 December 1913; Issued 15 May 1917.
  • "Wireless telegraph transmitter".
  • "Electric accumulator". Filed 9 March 1918
  • "Transmitter for wireless telegraphy". Filed 20 July 1908; Issued 3 August 1915.
  • "Thermionic valve". Filed 14 October 1926; Issued 20 November 1934.