Patents by Inventor Robert F. Hargrave

Robert F. Hargrave 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).

  • Boat
    Patent number: D341566
    Type: Grant
    Filed: April 23, 1992
    Date of Patent: November 23, 1993
    Assignee: Carri-Craft Catamarans, Inc.
    Inventors: Benedict A. Brooks, Robert F. Hargrave, Daniel R. Brooks, William L. Brooks, Donald L. Timm
  • Boat
    Patent number: D397988
    Type: Grant
    Filed: September 15, 1997
    Date of Patent: September 8, 1998
    Assignee: Benedict A. Brooks
    Inventors: Benedict A. Brooks, Robert F. Hargrave, William L. Brooks