Patents by Inventor Barry L. Ahrens

Barry L. Ahrens 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: D248475
    Type: Grant
    Filed: July 15, 1977
    Date of Patent: July 11, 1978
    Assignee: Caterpillar Tractor Co.
    Inventors: John M. Parks, Barry L. Ahrens, William J. Brown, John Molnar