Patents by Inventor Charles R. George

Charles R. George 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 of and additive for controlling fluid loss from a drilling fluid
    Patent number: 6107256
    Abstract: This invention provides a composition for and a method of using the composition to reduce the loss of liquid from aqueous compositions employed while rotary drilling. The composition of this invention comprises a polymeric material selected from homopolymers, random copolymers and random terpolymers, each of which includes a vinylamide morpholine derivative in the recipe for making the polymeric material.
    Type: Grant
    Filed: August 27, 1998
    Date of Patent: August 22, 2000
    Assignee: Fritz Industries, Inc.
    Inventors: Rebecca G. Udarbe, Kim Hancock-Grossi, Charles R. George
  • Method for control of fluid loss and gas migration in well cementing
    Patent number: 6089318
    Abstract: This invention discloses a polymer composition, a cement slurry containing said polymer composition and a method of using the cement slurry to cement a borehole penetrating a subsurface earth formation wherein the polymer composition is made by polymerizing a vinylamide morpholine derivative with a styrene sulfonic acid salt in the presence of a humate. The polymer composition operates to reduce fluid loss from the cement slurry to the subsurface formation.
    Type: Grant
    Filed: August 11, 1999
    Date of Patent: July 18, 2000
    Assignee: Fritz Industries, Inc.
    Inventors: Steven B. Laramay, Rebecca G. Udarbe, Charles R. George
  • 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
  • Oil well cementing process
    Patent number: RE31190
    Abstract: Oil well cementing compositions and processes are produced using a high efficiency sulfoalkylated lignin retarder composition and modifications thereof to produce cement compositions without gelation problems, having high early strength and with precisely controllable setting time.
    Type: Grant
    Filed: August 31, 1981
    Date of Patent: March 29, 1983
    Assignee: Halliburton Company
    Inventors: William J. Detroit, Michael E. Sanford, Jiten Chatterji, Charles R. George, Jerry D. Childs, Roosevelt Love