Patents by Inventor Robert D. Ziegler

Robert D. Ziegler 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).

  • Hanger bracket
    Patent number: 4026508
    Abstract: A hanger bracket adapted to secure wire merchandise hangers to perforated board is disclosed. The bracket has a plurality of communicating vertical and horizontal channels which enable it to accommodate hangers of various diameters.
    Type: Grant
    Filed: June 21, 1976
    Date of Patent: May 31, 1977
    Assignee: Litton Business Systems, Inc.
    Inventor: Robert D. Ziegler