Patents by Inventor Carl E. Mason

Carl E. Mason 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).

  • Composition and method for effecting seals in earth boreholes
    Patent number: 4568708
    Abstract: A well fluid and method for borehole sealing such as grouting or plugging, the fluid being comprised of water, a water swellable clay and a water dispersible polymer which prevents immediate hydration of the clay.
    Type: Grant
    Filed: June 20, 1984
    Date of Patent: February 4, 1986
    Assignee: NL Industries, Inc.
    Inventors: Carl E. Mason, Samuel E. Geffen
  • Method for effecting seals in earth boreholes
    Patent number: 4463808
    Abstract: A well fluid and method for borehole sealing such as grouting or plugging, the fluid being comprised of water, a water swellable clay and a water dispersible polymer which prevents immediate hydration of the clay.
    Type: Grant
    Filed: June 10, 1982
    Date of Patent: August 7, 1984
    Assignee: NL Industries, Inc.
    Inventors: Carl E. Mason, Samuel E. Geffen