Patents by Inventor Otto-Karl Bertsch

Otto-Karl Bertsch 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).

  • Patent number: 4832408
    Abstract: An upholstery support for a vehicle seat consisting of a first shell with a raised edge and made from a fiber-reinforced plastic and a second shell arranged on the side of the first shell facing the upholstery, which second shell is also made from a fiber-reinforced plastic, is connected with the first shell along the edge of the first shell, covers only portions of the first shell and is spaced from the first shell in predetermined areas. The second shell has a central cut-out and forms, together with the raised edge of the first shell, a hollow box-like frame and in both shells the reinforcing fibers are carbon fibers.
    Type: Grant
    Filed: July 8, 1988
    Date of Patent: May 23, 1989
    Assignee: Keiper Recaro GmbH & Co.
    Inventors: Otto-Karl Bertsch, Thomas Amthor