Patents by Inventor John V. Underwood

John V. Underwood has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Shark gun
    Patent number: 5943806
    Abstract: A shark gun injects a sharpened projectile into a predator and thereafter forces compressed gas into the predator. The shark gun is comprised of a compressed gas holding cylinder, a firing chamber having a plunger that bears the sharpened projectile and a valve that selectively permits the compressed gas to act on the plunger. A trigger actuates the valve.
    Type: Grant
    Filed: December 2, 1997
    Date of Patent: August 31, 1999
    Inventor: John V. Underwood