Patents by Inventor Thomas D. Griffith

Thomas D. Griffith 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).

  • Micellar fluid for low and high hardness crude oil displacement
    Patent number: 4316809
    Abstract: A micellar fluid used for displacing crude oil through high and low hardness portions of a subterranean reservoir is formulated with a crude oil displacing hydrocarbon sulfonate surfactant, a water soluble salt of a sulfated, oxyalkylated alcohol and amyl alcohol, preferably n-amyl alcohol.
    Type: Grant
    Filed: November 13, 1979
    Date of Patent: February 23, 1982
    Assignee: Standard Oil Company (Indiana)
    Inventors: Thomas D. Griffith, Daniel S. Denham