Patents by Inventor D. Glenn Gibson

D. Glenn Gibson 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).

  • Irrigation manager system with zone moisture control
    Patent number: 4875498
    Abstract: Irrigation controller apparatus for respectively controlling moisture content in a plurality of irrigation zones including an independently actuated moisture detection apparatus in each zone which stops and starts irrigation in that zone depending on moisture detected by the respective apparatus.
    Type: Grant
    Filed: May 2, 1989
    Date of Patent: October 24, 1989
    Inventors: T. Arthur Andrews, D. Glenn Gibson