Patents by Inventor Robert W. Callow

Robert W. Callow 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).

  • Publication number: 20030221922
    Abstract: An automatic parking brake actuation system for a truck or other heavy vehicle, including:
    Type: Application
    Filed: May 27, 2003
    Publication date: December 4, 2003
    Inventor: Robert W. Callow