Patents by Inventor Roger Fisher

Roger Fisher 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).

  • Boat anchor
    Patent number: 4732105
    Abstract: A boat anchor (10) includes three runners (11, 12, 13) having respective rear spikes (18, 19, 20) and front spikes (22, 23) for penetrating bottom material such as hard sand or mud. A bail (30) rolls the anchor onto the hooks. Flukes (32-36) are positioned on the runners (11, 12, 13) and induce drag through the bottom material which limits the movement of the anchor.
    Type: Grant
    Filed: November 28, 1986
    Date of Patent: March 22, 1988
    Inventor: Roger Fisher