Patents by Inventor William M. Hartman

William M. Hartman 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: D375109
    Type: Grant
    Filed: November 3, 1995
    Date of Patent: October 29, 1996
    Inventor: William M. Hartman
  • Patent number: D375748
    Type: Grant
    Filed: November 3, 1995
    Date of Patent: November 19, 1996
    Inventor: William M. Hartman
  • Patent number: D376610
    Type: Grant
    Filed: November 3, 1995
    Date of Patent: December 17, 1996
    Inventor: William M. Hartman