Patents by Inventor Edward W. Martens

Edward W. Martens 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).

  • Door-supporting system for multipanel, side-opening doors
    Patent number: 4073034
    Abstract: A door-supporting system for a multipanel, side-opening door includes a single track from which each panel is supported.
    Type: Grant
    Filed: September 13, 1976
    Date of Patent: February 14, 1978
    Assignee: Dover Corporation
    Inventor: Edward W. Martens