Patents by Inventor Horace F. Lawson

Horace F. Lawson 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).

  • Well drilling fluids and process for drilling wells
    Patent number: 4812244
    Abstract: The rheological characteristics of aqueous well drilling fluids are improved by incorporating into the fluids small amounts of sulfonated styrene-maleimide copolymers and at least one water-soluble polymer prepared from acrylic acid or acrylate or their derivatives.
    Type: Grant
    Filed: September 24, 1987
    Date of Patent: March 14, 1989
    Assignee: Pony Industries, Inc.
    Inventors: Horace F. Lawson, Arthur H. Hale
  • Well drilling fluids and process for drilling wells
    Patent number: 4740318
    Abstract: The rheological characteristics of aqueous well drilling fluids are improved by incorporating into the fluids small amounts of sulfonated styrene-maleic anhydride copolymers and at least one water-soluble polymer prepared from acrylic acid or acrylamide or their derivatives.
    Type: Grant
    Filed: December 13, 1985
    Date of Patent: April 26, 1988
    Assignee: Great Lakes Research Corp.
    Inventors: Arthur H. Hale, Horace F. Lawson