Patents by Inventor Glenn H. Lau

Glenn H. Lau 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: 4967697
    Abstract: A self-contained, automatic, floating fish feeding device which is characterized by multiple legs provided with floats at one end, the legs converging upwardly at the opposite end to a frame plate which supports a hanger for suspending a barrel containing fish food. The barrel is equipped with a battery-operated electric motor coupled to a feed-propelling device which periodically dispenses pelletized feed flowing by gravity from the barrel, by operation of a timing mechanism. A solar dome may be provided on the plate for generating electricity and charging a battery which operates the motor.
    Type: Grant
    Filed: July 5, 1989
    Date of Patent: November 6, 1990
    Inventor: Glenn H. Lau