Patents by Inventor Wilton F. Shiraki

Wilton F. Shiraki 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).

  • Propeller driven surfboard
    Patent number: 5194024
    Abstract: A propeller driven surfboard is provided which consists of a hull having a nose at the bow and a tail at the stern. A skeg is mounted to the underside of the hull, while a seat having a support structure is mounted onto the hull between the nose and tail thereof for a person to sit on. A mechanism is mounted in the hull in front of the seat, for propelling the hull along a body of water. Another mechanism is mounted in the hull in back of the seat, for steering the hull along the body of water.
    Type: Grant
    Filed: December 2, 1991
    Date of Patent: March 16, 1993
    Inventor: Wilton F. Shiraki