Patents by Inventor Gerald Rolfe

Gerald Rolfe 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).

  • Method of irrigation control
    Patent number: 5954450
    Abstract: Method of controlling the operation of an irrigation system for irrigating an area of land or other terrain. The method comprising the steps of monitoring a condition of the material of the land by a sensor located below the surface thereof, and controlling irrigation structure for irrigating the land area in response to the monitored condition of the material thereof and disturbing the material of the land in the vicinity of the sensor to maintain the material in operational monitoring contact with the sensor.
    Type: Grant
    Filed: January 28, 1998
    Date of Patent: September 21, 1999
    Inventor: Gerald Rolfe