Patents by Inventor Gordon O. Cates

Gordon O. Cates 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 and apparatus for pumping wells
    Patent number: 5207273
    Abstract: A method and apparatus for producing wells in which the tubing and casing are used as electrical conduits for a centrifugal pump in the well and single phase A. C. or D. C. current is supplied to the well and converted to three phase current at the pump motor.
    Type: Grant
    Filed: September 17, 1990
    Date of Patent: May 4, 1993
    Assignee: Production Technologies International Inc.
    Inventors: Gordon O. Cates, Ronald M. Bass, Kenneth J. Schmitt