Patents by Inventor Chad R. Brenneis

Chad R. Brenneis 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).

  • Patent number: 6797054
    Abstract: The present invention provides improved foamed well cement slurries, additives and methods. The foamed well cement slurries are basically comprised of a hydraulic cement, sufficient water to form a pumpable slurry, sufficient gas to form a foam and an effective amount of an additive for foaming the slurry comprised of hydrolyzed keratin.
    Type: Grant
    Filed: August 13, 2002
    Date of Patent: September 28, 2004
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jiten Chatterji, Roger S. Cromwell, Chad R. Brenneis, Bobby J. King, Dennis W. Gray, Frank Zamora
  • Patent number: 6547871
    Abstract: The present invention provides improved foamed well cement slurries, additives and methods. The foamed well cement slurries are basically comprised of a hydraulic cement, sufficient water to form a pumpable slurry, sufficient gas to form a foam and an effective amount of an additive for foaming the slurry comprised of hydrolyzed keratin.
    Type: Grant
    Filed: December 20, 2001
    Date of Patent: April 15, 2003
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jiten Chatterji, Roger S. Cromwell, Chad R. Brenneis, Bobby J. King, Dennis W. Gray, Frank Zamora
  • Publication number: 20030000428
    Abstract: The present invention provides improved foamed well cement slurries, additives and methods. The foamed well cement slurries are basically comprised of a hydraulic cement, sufficient water to form a pumpable slurry, sufficient gas to form a foam and an effective amount of an additive for foaming the slurry comprised of hydrolyzed keratin.
    Type: Application
    Filed: August 13, 2002
    Publication date: January 2, 2003
    Inventors: Jiten Chatterji, Roger S. Cromwell, Chad R. Brenneis, Bobby J. King, Dennis W. Gray, Frank Zamora
  • Publication number: 20020096090
    Abstract: The present invention provides improved foamed well cement slurries, additives and methods. The foamed well cement slurries are basically comprised of a hydraulic cement, sufficient water to form a pumpable slurry, sufficient gas to form a foam and an effective amount of an additive for foaming the slurry comprised of hydrolyzed keratin.
    Type: Application
    Filed: December 20, 2001
    Publication date: July 25, 2002
    Inventors: Jiten Chatterji, Roger S. Cromwell, Chad R. Brenneis, Bobby J. King, Dennis W. Gray, Frank Zamora
  • Patent number: 6367550
    Abstract: The present invention provides improved foamed well cement slurries, additives and methods. The foamed well cement slurries are basically comprised of a hydraulic cement, sufficient water to form a pumpable slurry, sufficient gas to form a foam and an effective amount of an additive for foaming the slurry comprised of hydrolyzed keratin.
    Type: Grant
    Filed: October 25, 2000
    Date of Patent: April 9, 2002
    Assignee: Halliburton Energy Service, Inc.
    Inventors: Jiten Chatterji, Roger S. Cromwell, Chad R. Brenneis, Bobby J. King, Dennis W. Gray, Frank Zamora