Patents by Inventor Gerald D. Constance

Gerald D. Constance 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).

  • Hydroponic garden
    Patent number: 5067275
    Abstract: A hydroponic garden utilizing conventional flower pots for growing chambers and a plastic PVC pipe supporting the flower pots through openings in the upper wall of the pipe so that a nutrient solution circulating through the plastic pipe feeds the plants growing in the flower pots. A timer controlled pump circulates the nutrient solution from a reservoir through the conduit and back to the reservoir according to a predetermined program.
    Type: Grant
    Filed: February 22, 1990
    Date of Patent: November 26, 1991
    Inventor: Gerald D. Constance