Patents by Inventor Paul Stockton

Paul Stockton 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).

  • Moisture sensor having low sensitivity to conductance changes
    Patent number: 5859536
    Abstract: A sensing device includes a pair of sensing electrodes disposed within a medium and a circuit connected to the sensing electrodes via impedance matching networks for producing an output signal which varies in response to a capacitive change in the medium. The circuit includes a first circuit portion including the sensing electrodes and a second circuit portion including the oscillator. The first and second circuit portions are tuned to match their impedance for more accurately measuring the capacitive changes.
    Type: Grant
    Filed: January 8, 1997
    Date of Patent: January 12, 1999
    Assignee: Oliver Haugen
    Inventor: Paul Stockton