Tesla vs Marconi: The Patent Fight Settled in 1943 The Marconi tuning patent stood for forty years as radio's foundation deed. This guide explains the 1943 Supreme Court case that set it aside in favour of Tesla, Lodge and Stone - and what the court did and did not decide. Quick facts Case Marconi v. United States Decided 21 June 1943 Patent four-circuit tuning Prior art Tesla, Lodge, Stone Tesla died January 1943 The decision was narrower than its headlines and more interesting: courts settle property, not parentage. Radio was invented by a generation arguing in print across four countries, and the judgment simply wrote that argument into law. Start learning: https://morsecodeworks.com/ Morse Code Works - free Morse code tools and guides. Reference chart