Patents by Inventor Kenk Kolhoff

Kenk Kolhoff 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).

  • Piston-cylinder device to be powered by a pressure fluid
    Patent number: 4969388
    Abstract: A piston-cylinder device powered by a pressurized fluid and having a mechanical locking means for the piston. The locking means is alternatively actuated into and out of locking position by the pressurized fluid.
    Type: Grant
    Filed: July 25, 1988
    Date of Patent: November 13, 1990
    Assignee: Applied Power Inc.
    Inventors: Kenk Kolhoff, Lambertus J. Sonneborn