Patents by Inventor Richard W. Keith, Jr.

Richard W. Keith, Jr. 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).

  • Marine aquaculture apparatus
    Patent number: 5970917
    Abstract: Marine aquaculture apparatus comprises a submersible torus-shaped enclosure having perforations therein. Structure is provided for raising the torus-shaped enclosure to the surface of a body of water and lowering the enclosure into the body of water. An access door on the torus-shaped enclosure provides entry into interior portions thereof. These interior portions of the enclosure function as a habitat for growing marine life such as fish. Preferably the torus-shaped enclosure comprises a perforated surface generated by the revolution of a circle about a vertical axis.
    Type: Grant
    Filed: February 27, 1998
    Date of Patent: October 26, 1999
    Inventor: Richard W. Keith, Jr.