Unmanned Aerial Vehicle Patents: A Survey

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By Peter Glaser

July 26, 2017- Although many think of unmanned aerial vehicles (UAVs) or “drones” as a modern development, UAVs have an extensive history dating back to the original development of lighter-than-air flight.  Initial attempts were limited by the technology of the age – an attempt by the Austrian empire to launch balloon bombs against the Venetian state failed when a shift in wind resulted in the balloon bombs returning toward the Austrian troops.  Early engineering efforts to support unmanned aerial flight included the development of radio-based remote control by Serbian-American Nikola Tesla, an “Aerial Target” developed in 1916-17 by Englishman Archibald Low, and an “AutomaticAirplane” developed in 1916-18 by Americans Elmer Sperry and Peter Cooper Hewitt.  Early attempts often ended in failure – Low’s Aerial Target crashed during all three test flights before being abandoned; Sperry and Hewitt’s Automatic Airplane successfully completed a single successful test flight of 1000 feet, but all completed test airframes were destroyed in subsequent crashes resulting in abandonment.

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