Wright Brothers' 1906 Patent for airplane, 1906.
© National Aeronautics & Space Administration / Science & Society
'Submitted in 1903, the Wright brothers finally received this patent in 1906 for their airplane that they tested in North Carolina. Their application included detailed descriptions of their aeronautical innovations. With the receipt of their patent, the Wrights had control over their design - they could grant or deny permission to use their design and were entitled to a royalty. Nevertheless, the Wrights started a large legal suit against Glenn Curtiss after he designed a plane that had many of the Wrights' innovations in it. Dragging on for years, the case was never settled to the Wrights' satisfaction.