Patents by Inventor Phillip W. Hoffman

Phillip W. Hoffman 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).

  • Knife handle with thumb wing
    Patent number: 4578864
    Abstract: An improved knife having an elongate grip and a bolster joined to the grip adjacent the handles front end. The bolster includes a swept-forward thumb wing which extends adjacent a blade opposite the cutting edge to provide a wider-than-blade thumb-force-transmitting pressure platform.
    Type: Grant
    Filed: May 17, 1984
    Date of Patent: April 1, 1986
    Inventor: Phillip W. Hoffman
  • Knife handle
    Patent number: D248039
    Type: Grant
    Filed: October 28, 1976
    Date of Patent: May 30, 1978
    Assignee: Cheyenne Corporation
    Inventor: Phillip W. Hoffman
  • Knife handle
    Patent number: D287042
    Type: Grant
    Filed: April 4, 1984
    Date of Patent: December 2, 1986
    Assignee: Hoffman Design, Inc.
    Inventor: Phillip W. Hoffman