Patents by Inventor William C. Craft

William C. Craft 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).

  • Twisting arrowhead
    Patent number: 5496042
    Abstract: An arrow having a longitudual hollow shank portion containing a sliding element which moves forward upon the impact of the arrow with a target and twists a receiving element connected to a rotatably mounted arrowhead to rapidly rotate the arrowhead and thus give the arrowhead great stopping power when hunting game.
    Type: Grant
    Filed: March 31, 1995
    Date of Patent: March 5, 1996
    Inventors: William C. Craft, Ruth L. Craft