Patents by Inventor Donald Roy Stoughton, deceased

Donald Roy Stoughton, deceased 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).

  • Rotary opposed piston engine
    Patent number: 6895922
    Abstract: A rotary engine includes a housing, a shaft, a plurality of main pistons, a plurality of main piston rods, a plurality of following pistons, a plurality of following piston rods, a following piston timing mechanism and a plurality of timing bars.
    Type: Grant
    Filed: August 9, 2004
    Date of Patent: May 24, 2005
    Inventors: Gloria Snowden, legal representative, Donald Roy Stoughton, deceased