Patents by Inventor Jan H. K. Minkhorst

Jan H. K. Minkhorst 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).

  • Bumper
    Patent number: 4549757
    Abstract: Bumper comprising a plate-like element (1) made of a resilient plastic, having between two fastenings points (4,5) a stiffening member (7) leaving between this member and the fastening points unstiffened areas (10,11).
    Type: Grant
    Filed: January 4, 1984
    Date of Patent: October 29, 1985
    Assignee: Stamicarbon B.V.
    Inventor: Jan H. K. Minkhorst