Patents by Inventor Willis C. Cunningham

Willis C. Cunningham 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 for cementing wells in low temperature formations
    Patent number: 3937282
    Abstract: The present invention relates to a composition and method for cementing pipe and casing in wells in low temperature earth formations and relates more particularly to the cementing of casing oil and gas wells drilled through permafrost formations.
    Type: Grant
    Filed: March 24, 1975
    Date of Patent: February 10, 1976
    Assignee: Halliburton Company
    Inventors: Stanley H. Shryock, Charles R. George, Willis C. Cunningham