Patents by Inventor Randall S. Williamson

Randall S. Williamson 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).

  • Hammer head
    Patent number: D295602
    Type: Grant
    Filed: November 5, 1986
    Date of Patent: May 10, 1988
    Inventor: Randall S. Williamson
  • Hammer
    Patent number: D315483
    Type: Grant
    Filed: March 10, 1988
    Date of Patent: March 19, 1991
    Inventor: Randall S. Williamson