Patents by Inventor Robert K. Barth

Robert K. Barth 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).

  • Trailer hitch guard
    Patent number: D368059
    Type: Grant
    Filed: January 6, 1995
    Date of Patent: March 19, 1996
    Inventor: Robert K. Barth