Patents by Inventor Walter F. Jenne

Walter F. Jenne 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).

  • Abrading tool and method of manufacture
    Patent number: 5105586
    Abstract: An abrading tool and method of manufacture wherein a non-uniform abrading surface is formed on the tool by multiple passes of dies having similar non-uniform surfaces.
    Type: Grant
    Filed: July 21, 1989
    Date of Patent: April 21, 1992
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventors: Walter F. Jenne, John R. Mason
  • Knife sharpener
    Patent number: 4751795
    Abstract: A crossed abrasive rod manual knife sharpener that can be rigidly supported on readily available with only light hand pressure and in other positions with the user's supporting hand well away from the sharpening area, and that is provided with a knife-blade alignment site and supporting surface edge guides.
    Type: Grant
    Filed: January 27, 1986
    Date of Patent: June 21, 1988
    Inventor: Walter F. Jenne
  • Knife sharpener
    Patent number: D322741
    Type: Grant
    Filed: January 24, 1989
    Date of Patent: December 31, 1991
    Inventor: Walter F. Jenne