Patents by Inventor Paul E. Griffin

Paul E. Griffin 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).

  • Geothermal petroleum refining
    Patent number: 4248306
    Abstract: Petroleum is distilled into fractions and/or cracked to form gas and/or lighter oil fractions by pumping the oil into the boiler section of a unit disposed in a hot, deep, subterranean geothermal zone. The distillation can be aided by forming steam from the geothermal heat as a thermal carrier.
    Type: Grant
    Filed: April 2, 1979
    Date of Patent: February 3, 1981
    Inventors: Allan T. Van Huisen, Paul E. Griffin