Patents by Inventor Karlheinz Bockisch

Karlheinz Bockisch 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).

  • Accordion door
    Patent number: 5109911
    Abstract: An accordion door that is suspended from a horizontal rail. The door comprises individual sections that are each pivotable about a vertical axis that is centrally disposed relative to a width dimension of that section. The sections essentially comprise an expanded plastic core that is provided with panels on opposite sides.
    Type: Grant
    Filed: July 24, 1991
    Date of Patent: May 5, 1992
    Inventor: Karlheinz Bockisch