Patents by Inventor Thomas R. Hartmann

Thomas R. Hartmann 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).

  • Plastic arrow head
    Patent number: D379210
    Type: Grant
    Filed: June 27, 1995
    Date of Patent: May 13, 1997
    Assignee: Molded Rubber & Plastic Corp.
    Inventor: Thomas R. Hartmann