Patents by Inventor Frederick J. Villforth, III

Frederick J. Villforth, III 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).

  • Patent number: 4576476
    Abstract: A method and system for measuring relative speed of a ship through a body of water with improved accuracy and simplicity. It employs a free floating buoy and a pair of tracking scopes. The buoy is launched and tracked by the scopes with electronic circuit arrangements so that the time of relative movement of the buoy between transverse positions opposite the scopes is accurately measured.
    Type: Grant
    Filed: April 29, 1983
    Date of Patent: March 18, 1986
    Assignee: Texaco, Inc.
    Inventors: Hubert T. Marshall, II, Eugene W. Vest, Frederick J. Villforth, III