Patents by Inventor William Randall Hartman

William Randall 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: D381483
    Type: Grant
    Filed: November 29, 1995
    Date of Patent: July 22, 1997
    Inventor: William Randall Hartman