Patents by Inventor William E. Hard

William E. Hard 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).

  • Pipe coupler
    Patent number: 7320165
    Abstract: A pipe coupler gripping each pipe with hand grip actuated clamps, and seating the end of one pipe in the aligned end of another pipe using leverage plates having a slot or channel with a drop notch, facilitating additional leveraging.
    Type: Grant
    Filed: July 11, 2006
    Date of Patent: January 22, 2008
    Inventor: William E. Hard