Patents by Inventor Hofgren Jon M.

Hofgren Jon M. 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).

  • Bearing with composite load bearing surfaces
    Patent number: 4892421
    Abstract: A nonlubricated roller or ball bearing in which a resilient surface is placed between the roller or ball and the raceway in which the roller or ball is retained. The bearing is useful in environmemnts that are damaging to precision roller or ball bearings.
    Type: Grant
    Filed: January 11, 1988
    Date of Patent: January 9, 1990
    Inventor: Hofgren Jon M.