Patents by Inventor Robert E. Gillespie

Robert E. Gillespie 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).

  • Superheated solvent method for recovering viscous petroleum
    Patent number: 4450913
    Abstract: The disclosed invention is a method for efficiently recovering viscous petroleum from hydrocarbon formations, particularly consolidated tar sand formations. A superheated paraffinic solvent under elevated pressure and temperature is injected into the formation. Thereafter, the formation is rapidly produced until pressure is depleted. The injection and production depletion cycle is then repeated.
    Type: Grant
    Filed: June 14, 1982
    Date of Patent: May 29, 1984
    Assignee: Texaco Inc.
    Inventors: Joseph C. Allen, Robert E. Gillespie, David B. Burnett