Patents by Inventor William H. Grannis

William H. Grannis 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: D380649
    Type: Grant
    Filed: May 14, 1996
    Date of Patent: July 8, 1997
    Assignee: THC Systems, Inc.
    Inventor: William H. Grannis