Patents by Inventor William L. Eaken

William L. Eaken 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).

  • Reinforcing insert for a spectacle case
    Patent number: D310300
    Type: Grant
    Filed: December 14, 1987
    Date of Patent: September 4, 1990
    Assignee: California Optical Leather, Inc.
    Inventors: Robert J. Marks, William L. Eaken