Patents by Inventor Robert L. Williford

Robert L. Williford 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).

  • SYSTEM AND METHOD FOR REMOTE SENSING
    Publication number: 20120211278
    Abstract: A system, method and device may be used to monitor conditions in a borehole. Well tubing and casing act as a conductive pair for delivering power to one or more downhole active sensors. At the surface, power and signal are isolated so that the same conductive pair may act to transmit the sensor signals to the surface. In an embodiment, the sensor signals are RF signals and the surface electronics demodulate the RF signals from the sensor power.
    Type: Application
    Filed: November 14, 2011
    Publication date: August 23, 2012
    Applicant: Chevron U.S.A., Inc.
    Inventors: Manuel E. Gonzalez, M. Clark Thompson, Robert L. Williford, David W. Beck