Patents by Inventor Karl-Heinz G. Ligensa

Karl-Heinz G. Ligensa 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).

  • Integral hand knob gear
    Patent number: 4488451
    Abstract: A remote hand knob gear as first of a train of gears for actuating a taumel hinge eccentric constructed as integral plastic support disc and gear adapted for snap on hand knob.
    Type: Grant
    Filed: February 18, 1982
    Date of Patent: December 18, 1984
    Assignee: Keiper U.S.A. Inc.
    Inventors: Karl-Heinz G. Ligensa, Philip Cherdron