Patents by Inventor Albert Knowles

Albert Knowles 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).

  • Patent number: 4287852
    Abstract: This disclosure is concerned with novel, submersible cover designs for pools containing fish, such as salmonoids and the like, including vertically separated and stacked light-opaque covers that divide the pool into dark zones in which the fish are trained to rest in stacked formation with accelerated feeding habits and with a plurality of openings in the covers to provide a plurality of feed regions along the surfaces of the covers.
    Type: Grant
    Filed: October 11, 1979
    Date of Patent: September 8, 1981
    Inventors: Robert H. Rines, Albert Knowles