Patents by Inventor J. Michael Brown

J. Michael Brown 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 inhibiting reservoir scale
    Patent number: 5409062
    Abstract: A method of inhibiting the formation and deposition of scale in the production of hydrocarbons from subterranean reservoirs. The method is particularly effective at inhibiting the formation and deposition of calcium and barium scales in the produced waters of hydrocarbon recovery operations. The method comprises introducing into the produced water a polyepoxysuccinic acid of the general formula: ##STR1## where n ranges from about 2 to about 11, M is hydrogen or a water soluble cation such as Na.sup.+, NH.sub.4.sup.+, K.sup.+ and R is hydrogen, C.sub.1-4 alkyl or C.sub.1-4 substituted alkyl.
    Type: Grant
    Filed: December 17, 1993
    Date of Patent: April 25, 1995
    Assignee: Betz Laboratories, Inc.
    Inventors: J. Michael Brown, Gene F. Brock
  • Composition for controlling silica and water soluble silicate deposition
    Patent number: 5393456
    Abstract: A method for the inhibition of silica and silicate deposits on the internal surfaces of a water system consisting of adding to the water system a composition comprised of a blend of two water soluble copolymers. The first copolymer contains repeat units of maleic or acrylic acids and a phosphinic acid, or salt forms thereof. The second copolymer contains repeat units of acrylic acid and allyl hydroxy propyl sulfonate ether, or salt forms thereof.
    Type: Grant
    Filed: June 22, 1993
    Date of Patent: February 28, 1995
    Assignee: Betz Laboratories, Inc.
    Inventors: Libardo A. Perez, J. Michael Brown, Khac T. Nguyen
  • Method for controlling silica and water soluble silicate deposition
    Patent number: 5256302
    Abstract: A method for the inhibition of silica and silicate deposits on the internal surfaces of a water system consisting of adding to the water system a composition comprised of a blend of two water soluble copolymers. The first copolymer contains repeat units of maleic or acrylic acids and a phosphinic acid, or salt forms thereof. The second copolymer contains repeat units of acrylic acid and allyl hydroxy propyl sulfonate ether, or salt forms thereof.
    Type: Grant
    Filed: May 18, 1992
    Date of Patent: October 26, 1993
    Assignee: Betz Laboratories, Inc.
    Inventors: Libardo A. Perez, J. Michael Brown, Khac T. Nguyen
  • Methods of controlling scale formation in aqueous systems
    Patent number: 5147555
    Abstract: A method of treating water to inhibit the formation of scale is disclosed. The method is particularly effective at inhibiting the formation and deposition of calcium and barium scales in aqueous systems such as cooling water systems. The method comprises introducing into the aqueous system a polyepoxysuccinic acid of the general formula ##STR1## when n ranges from about 2 to about 11, M is hydrogen or a water soluble cation such as Na.sup.+, NH.sub.4.sup.+, or K.sup.+ and R is hydrogen, C.sub.1-4 alkyl or C.sub.1-4 substituted alkyl.
    Type: Grant
    Filed: July 30, 1991
    Date of Patent: September 15, 1992
    Assignee: Betz Laboratories, Inc.
    Inventors: J. Michael Brown, John F. McDowell, Kin-Tai Chang
  • Method for controlling silica deposition in aqueous systems
    Patent number: 5100558
    Abstract: A method for the inhibition of silica deposition on the surfaces of a structure which contains an aqueous medium comprising adding to the aqueous medium a composition comprising HEDP, PEG and a water soluble polymer having the structure: ##STR1## wherein M is a water soluble cation. This invention is particularly effective in cooling water and steam generating systems.
    Type: Grant
    Filed: January 3, 1991
    Date of Patent: March 31, 1992
    Assignee: Betz Laboratories, Inc.
    Inventors: J. Michael Brown, Cato R. McDaniel, Truc K. Nguyen, Steven P. Sherwood
  • Methods of controlling scale formation in aqueous systems
    Patent number: 5062962
    Abstract: A method of treating water to inhibit the formation of scale is disclosed. The method is particularly effective at inhibiting the formation and deposition of calcium and barium scales in circulating aqueous systems such as cooling water systems. The method comprises introducing into the aqueous system a polyepoxysuccinic acid of the general formula ##STR1## where n ranges from about 2 to about 11, M is hydrogen or a water soluble cation such as Na.sup.+, NH.sub.4.sup.+, or K.sup.+ and R is hydrogen, C.sub.1-4 alkyl or C.sub.1-4 substituted alkyl.
    Type: Grant
    Filed: May 4, 1990
    Date of Patent: November 5, 1991
    Assignee: Betz Laboratories, Inc.
    Inventors: J. Michael Brown, John F. McDowell, Kin-Tai Chang
  • Method for control of scale and inhibition of corrosion in cooling water systems
    Patent number: 4913822
    Abstract: A method for inhibiting scale deposition and the corrosion of metal surfaces in a cooling water system.It comprises a water soluble copolymer consisting of moities of acrylic acid and monohydroxylated alkyl allyl ether, a phosphonate compound, a water soluble zinc salt and, optionally, an azole compound, and/or a water soluble molybdate salt.
    Type: Grant
    Filed: January 12, 1989
    Date of Patent: April 3, 1990
    Assignee: Betz Laboratories, Inc.
    Inventors: Fu Chen, J. Michael Brown