Patents by Inventor Martin Lee Denny

Martin Lee Denny 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).

  • Strengthening rib
    Patent number: 6302426
    Abstract: An improved trailer hitch housing is provided having a pair of integrated ribs extending the length of each side of the housing. The ribs strengthen and stiffen the housing by decreasing the tendency of the sides to bend when subjected to stress. The need for internal bracing or end flanges, which are used in prior art devices for strength and stiffness, is eliminated by the use of the ribs.
    Type: Grant
    Filed: January 2, 1998
    Date of Patent: October 16, 2001
    Assignee: DICO, Inc.
    Inventor: Martin Lee Denny