Patents by Inventor Lois A. Settlemeyer

Lois A. Settlemeyer 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).

  • Gas flooding process for the recovery of oil from subterranean formations
    Patent number: 4739831
    Abstract: In a gas flooding operation, the sweep efficiency of the gas is improved using a surfactant solution comprising an alkylated diphenyl sulfonate.
    Type: Grant
    Filed: September 19, 1986
    Date of Patent: April 26, 1988
    Assignee: The Dow Chemical Company
    Inventors: Lois A. Settlemeyer, Monty J. McCoy