Patents by Inventor Adolf Kretzer

Adolf Kretzer 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).

  • Mounting wall
    Patent number: 6461234
    Abstract: A recreational vehicle wall structure is provided with an access opening permitting servicing of an appliance, such as a refrigerator, from the exterior of the vehicle. The opening can be sized to allow the appliance to project into the opening to increase the usable interior volume of the vehicle. A cover for closing the opening can include ventilating openings.
    Type: Grant
    Filed: May 5, 1999
    Date of Patent: October 8, 2002
    Assignee: Electrolux Siegen GmbH
    Inventor: Adolf Kretzer