Patents by Inventor Donald R. Greeno

Donald R. Greeno 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).

  • War game marking grenade
    Patent number: 4944521
    Abstract: A war game marking grenade is set forth including an elongate elliptical housing with a central cylindrical well directed therein coaxially with the major axis of the housing with a piercing mechanism to pierce an enclosed gas cylinder and direct the gas from the cylinder into channels and impel gelatin enclosing fluid marking spheres exteriorly of the grenade for marking purposes.
    Type: Grant
    Filed: June 27, 1989
    Date of Patent: July 31, 1990
    Inventor: Donald R. Greeno