Patents by Inventor Shih-Ruey T. Chen

Shih-Ruey T. Chen 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: 10584277
    Abstract: A method of treating a portion of a subterranean formation that includes: providing a water-in-oil emulsion, inverting the water-in-oil emulsion to form a friction reducing treatment solution, and introducing the treatment solution into the portion of the subterranean formation. The water-in-oil emulsion has an oil phase, an aqueous phase and surfactants. The oil phase (O) and an aqueous phase (A) are present at an O/A ratio of from about 1:8 to about 10:1. The oil phase is present as a continuous phase and contains an inert hydrophobic liquid. The aqueous phase is present as a dispersed phase of distinct particles in the oil phase and includes water and a water soluble polymer. The water soluble polymer makes up from 10 to 25 weight percent of the water-in-oil emulsion. The water-in-oil emulsion is inverted by adding it to water to form a friction reducing treatment solution.
    Type: Grant
    Filed: February 3, 2014
    Date of Patent: March 10, 2020
    Assignee: SOLVAY USA INC.
    Inventors: Kevin W Frederick, Shih-Ruey T Chen
  • Patent number: 8640774
    Abstract: A method of treating a portion of a subterranean formation that includes: providing a water-in-oil emulsion, inverting the water-in-oil emulsion to form a friction reducing treatment solution, and introducing the treatment solution into the portion of the subterranean formation. The water-in-oil emulsion has an oil phase, an aqueous phase and surfactants. The oil phase (O) and an aqueous phase (A) are present at an O/A ratio of from about 1:8 to about 10:1. The oil phase is present as a continuous phase and contains an inert hydrophobic liquid. The aqueous phase is present as a dispersed phase of distinct particles in the oil phase and includes water and a water soluble polymer. The water soluble polymer makes up from 10 to 25 weight percent of the water-in-oil emulsion. The water-in-oil emulsion is inverted by adding it to water to form a friction reducing treatment solution.
    Type: Grant
    Filed: February 18, 2008
    Date of Patent: February 4, 2014
    Assignee: WSP Chemicals & Technology, LLC
    Inventors: Kevin W Frederick, Shih-Ruey T Chen
  • Patent number: 8535651
    Abstract: A complex including a polymer and a surfactant formed by polymerizing a monomer mixture containing: (A) acid functional monomers at least partially neutralized with one or more amines according to one or more of formulas (I) through (IV): R1—NR2R3??(I) R1—N+R2R3R7X???(II) R4—C(O)—NR5—R6—NR2R3??(III) R4—C(O)—NR5—R6—N+R2R3R7X???(IV) wherein R1 and R4 are independently a C8-C24 group; R2, R3 and R5 are independently H or a C1-C6 group, or where R2 and R3 combine to form an anelled ring of from 4 to 12 carbon atoms in length optionally containing hetero atoms; R6 is C1-C24 group, R7 is H or a C1-C12 group, and X is a halide, a sulfate or a sulfonate; (B) one or more cationic monomers; and optionally (C) one or more other monomers.
    Type: Grant
    Filed: June 11, 2012
    Date of Patent: September 17, 2013
    Assignee: WSP Chemicals & Technology, LLC
    Inventors: Shih-Ruey T Chen, Kevin W. Frederick
  • Publication number: 20120251475
    Abstract: A complex including a polymer and a surfactant formed by polymerizing a monomer mixture containing: (A) acid functional monomers at least partially neutralized with one or more amines according to one or more of formulas (I) through (IV): R1—NR2R3??(I) R1—N+R2R3R7X???(II) R4—C(O)—NR5—R6—NR2R3??(III) R4—C(O)—NR5—R6—N+R2R3R7X???(IV) wherein R1 and R4 are independently a C8-C24 group; R2, R3 and R5 are independently H or a C1-C6 group, or where R2 and R3 combine to form an anelled ring of from 4 to 12 carbon atoms in length optionally containing hetero atoms; R6 is C1-C24 group, R7 is H or a C1-C12 group, and X is a halide, a sulfate or a sulfonate; (B) one or more cationic monomers; and optionally (C) one or more other monomers.
    Type: Application
    Filed: June 11, 2012
    Publication date: October 4, 2012
    Applicant: WSP CHEMICALS & TECHNOLOGY, LLC
    Inventors: Shih-Ruey T. Chen, Kevin W. Frederick
  • Patent number: 8211414
    Abstract: A complex including a polymer and a surfactant formed by polymerizing a monomer mixture containing: (A) acid functional monomers at least partially neutralized with one or more amines according to one or more of formulas (I) through (IV): R1—NR2R3??(I) R1—N+R2R3R7X???(II) R4—C(O)—NR5—R6—NR2R3??(III) R4—C(O)—NR5—R6—N+R2R3R7X???(IV) wherein R1 and R4 are independently a C8-C24 group; R2, R3 and R5 are independently H or a C1-C6 group, or where R2 and R3 combine to form an anelled ring of from 4 to 12 carbon atoms in length optionally containing hetero atoms; R6 is C1-C24 group, R7 is H or a C1-C12 group, and X is a halide, a sulfate or a sulfonate; (B) one or more cationic monomers; and optionally (C) one or more other monomers.
    Type: Grant
    Filed: April 18, 2005
    Date of Patent: July 3, 2012
    Assignee: WSP Chemicals & Technology, LLC
    Inventors: Shih-Ruey T Chen, Kevin W. Frederick
  • Patent number: 8021516
    Abstract: A water-soluble interjacent complex that includes a first water-soluble polymer and one or more water-soluble monomers polymerized to form a second water-soluble polymer in the presence of the first water-soluble polymer. The water-soluble interjacent complex forms a solution in water that is free of insoluble polymer particles. The interjacent complexes may be used to treat a waste sludge by adding an effective amount thereof to the waste sludge. The interjacent complexes may also be used in making paper by adding an effective amount thereof to a pulp or a forming sheet at a suitable location on a paper making machine. The interjacent complexes may further be used as a rheology modifier in aqueous systems by adding an effective amount thereof to an aqueous medium to effect a desired viscosity, rheology, or flow curve property.
    Type: Grant
    Filed: April 6, 2009
    Date of Patent: September 20, 2011
    Assignee: WSP Chemicals & Technology, LLC
    Inventors: Shih-Ruey T Chen, Valentino L. DeVito, Kevin W. Frederick
  • Patent number: 7754794
    Abstract: A composition for treating a keratin based substrate that includes a cosmetically acceptable medium containing a water-soluble interjacent complex. The water-soluble interjacent complex includes a first water-soluble polymer and a second water-soluble polymer formed by polymerizing one or more water-soluble monomers in the presence of the first water-soluble polymer. The water-soluble interjacent complex is characterized in that it forms a solution in water that is free of insoluble polymer particles. The water-soluble interjacent complex is used in a method of treating a keratin based substrate, whereby a cosmetically acceptable medium is applied to the substrate and contains from 0.1-20% by weight of the water-soluble interjacent complex.
    Type: Grant
    Filed: August 9, 2005
    Date of Patent: July 13, 2010
    Assignee: WSP Chemical & Technology, LLC
    Inventors: Shih-Ruey T Chen, Valentino L. DeVito, Kevin W. Frederick
  • Patent number: 7575057
    Abstract: Coacervate gels having excellent shear viscosities and other properties are made with anionic or cationic polymers, a smaller amount of a surfactant having a charge opposite that of the polymer, and a hydrophobic alcohol. The Zeta Potential of the gel is maintained at an absolute value of at least 20. Optional gel promoting additives include betaines and amine oxides. A preferred gel comprises poly diallyl dimethyl ammonium chloride, a lesser amount of sodium lauryl sulfonate, and lauryl alcohol. The gels are particularly useful in well drilling fluids and well fracturing fluids.
    Type: Grant
    Filed: February 19, 2008
    Date of Patent: August 18, 2009
    Assignee: Clearwater International, L.L.C.
    Inventors: Kevin N. Schwartz, Kevin W. Smith, Shih-Ruey T. Chen
  • Publication number: 20090188639
    Abstract: A water-soluble interjacent complex that includes a first water-soluble polymer and one or more water-soluble monomers polymerized to form a second water-soluble polymer in the presence of the first water-soluble polymer. The water-soluble interjacent complex forms a solution in water that is free of insoluble polymer particles. The interjacent complexes may be used to treat a waste sludge by adding an effective amount thereof to the waste sludge. The interjacent complexes may also be used in making paper by adding an effective amount thereof to a pulp or a forming sheet at a suitable location on a paper making machine. The interjacent complexes may further be used as a rheology modifier in aqueous systems by adding an effective amount thereof to an aqueous medium to effect a desired viscosity, rheology, or flow curve property.
    Type: Application
    Filed: April 6, 2009
    Publication date: July 30, 2009
    Applicant: WSP CHEMICALS & TECHNOLOGY, LLC
    Inventors: Shih-Ruey T. Chen, Valentino L. DeVito, Kevin W. Frederick
  • Patent number: 7514007
    Abstract: A water-soluble interjacent complex that includes a first water-soluble polymer and one or more water-soluble monomers polymerized to form a second water-soluble polymer in the presence of the first water-soluble polymer. The water-soluble interjacent complex forms a solution in water that is free of insoluble polymer particles. The interjacent complexes may be used to treat a waste sludge by adding an effective amount thereof to the waste sludge. The interjacent complexes may also be used in making paper by adding an effective amount thereof to a pulp or a forming sheet at a suitable location on a paper making machine. The interjacent complexes may further be used as a rheology modifier in aqueous systems by adding an effective amount thereof to an aqueous medium to effect a desired viscosity, rheology, or flow curve property.
    Type: Grant
    Filed: March 22, 2005
    Date of Patent: April 7, 2009
    Assignee: WSP Chemicals & Technology, LLC
    Inventors: Shih-Ruey T Chen, Valentino L. DeVito, Kevin W. Frederick
  • Publication number: 20080202749
    Abstract: Coacervate gels having excellent shear viscosities and other properties are made with anionic or cationic polymers, a smaller amount of a surfactant having a charge opposite that of the polymer, and a hydrophobic alcohol. The Zeta Potential of the gel is maintained at an absolute value of at least 20. Optional gel promoting additives include betaines and amine oxides. A preferred gel comprises poly diallyl dimethyl ammonium chloride, a lesser amount of sodium lauryl sulfonate, and lauryl alcohol. The gels are particularly useful in well drilling fluids and well fracturing fluids.
    Type: Application
    Filed: February 19, 2008
    Publication date: August 28, 2008
    Inventors: Kevin M. Schwartz, Kevin W. Smith, Shih-Ruey T. Chen
  • Patent number: 7405188
    Abstract: A cosmetically acceptable medium containing a component and an aqueous gel that includes water and: (a) a cationic polymer; (b) an anionic surfactant having from 8 to 22 carbon atoms, where the amount of the anionic surfactant is less than the amount of the cationic polymer; (c) an amphoteric surfactant, where the amount of the amphoteric surfactant is less than the amount of the cationic polymer; and (d) optionally a long chain amine oxide, where the amount of said long chain amine oxide is less than the amount of the cationic polymer. The component is selected from a cationic surfactant, a conditioning agent, a synthetic amphoteric polymer, a synthetic ampholytic polymer, a synthetic non-ionic polymer, an amino acid, a protein, an oxidizing agent, a hair dye, dyes, pigments, a fragrance, one or more vitamins, and mixtures thereof. The cosmetically acceptable medium can be used to treat keratin-based substrates.
    Type: Grant
    Filed: November 12, 2004
    Date of Patent: July 29, 2008
    Assignee: WSP Chemicals & Technology, LLC
    Inventor: Shih-Ruey T. Chen
  • Patent number: 7087556
    Abstract: The present invention provides compositions of treating subterranean zones penetrated by well bores in primary well cementing operations, well completion operations, production stimulation treatments and the like. The invention includes aqueous well treating fluids comprised of water and a water soluble polymer complex fluid loss control additive. Preferred polymer complexes comprise water-soluble polymers made in the presence of hydroxyethylcellulose.
    Type: Grant
    Filed: April 15, 2002
    Date of Patent: August 8, 2006
    Assignee: WSP Chemicals & Technology, L.L.C.
    Inventors: Shih-Ruey T. Chen, Jiten Chatterji, Valentino L. DeVito, Randy J. Loeffler, Kevin W. Frederick, Kevin W. Smith
  • Patent number: 7001953
    Abstract: A water-soluble interjacent complex that includes a first water-soluble polymer and one or more water-soluble monomers polymerized to form a second water-soluble polymer in the presence of the first water-soluble polymer. The water-soluble interjacent complex forms a solution in water that is free of insoluble polymer particles. The interjacent complexes may be used to treat a waste sludge by adding an effective amount thereof to the waste sludge. The interjacent complexes may also be used in making paper by adding an effective amount thereof to a pulp or a forming sheet at a suitable location on a paper making machine. The interjacent complexes may further be used as a rheology modifier in aqueous systems by adding an effective amount thereof to an aqueous medium to effect a desired viscosity, rheology, or flow curve property.
    Type: Grant
    Filed: April 15, 2002
    Date of Patent: February 21, 2006
    Assignee: WSP Chemicals & Technology, LLC
    Inventors: Shih-Ruey T. Chen, Valentino L. DeVito, Kevin W. Frederick
  • Patent number: 6939536
    Abstract: A composition for treating a keratin based substrate that includes a cosmetically acceptable medium containing a water-soluble interjacent complex. The water-soluble interjacent complex includes a first water-soluble polymer and a second water-soluble polymer formed by polymerizing one or more water-soluble monomers in the presence of the first water-soluble polymer. The water-soluble interjacent complex is characterized in that it forms a solution in water that is free of insoluble polymer particles. The water-soluble interjacent complex is used in a method of treating a keratin based substrate, whereby a cosmetically acceptable medium is applied to the substrate and contains from 0.1-20% by weight of the water-soluble interjacent complex.
    Type: Grant
    Filed: April 15, 2002
    Date of Patent: September 6, 2005
    Assignee: WSP Chemicals & Technology, LLC
    Inventors: Shih-Ruey T. Chen, Valentino L. DeVito, Kevin W. Frederick
  • Patent number: 6767867
    Abstract: The present invention provides methods of treating subterranean zones penetrated by well bores in primary well cementing operations, well completion operations, production stimulation treatments and the like. The methods are basically comprised of introducing into the subterranean zone an aqueous well treating fluid comprised of water and a water soluble polymer complex fluid loss control additive.
    Type: Grant
    Filed: April 15, 2002
    Date of Patent: July 27, 2004
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jiten Chatterji, Roger S. Cromwell, Bobby J. King, D. Chad Brenneis, Dennis W. Gray, Ronald J. Crook, Shih-Ruey T. Chen, Valentino L. DeVito, Kevin W. Frederick, Kevin W. Smith, Randy J. Loeffler
  • Patent number: 6691715
    Abstract: Novel water soluble polymers in solution or water-in-oil emulsion form are disclosed containing quaternary ammonium monomers; and optionally (meth)acrylic acid or 2-(meth)acrylamido-2-methylpropane sulfonic acid; methylene bis-acryamide and the like; and a C1-C3 alkyl (meth) acrylate acrylamide or methacrylamide and the use thereof in hair, skin and nail conditioning; papermaking; and subterranean well drilling and well cementing operations.
    Type: Grant
    Filed: September 13, 2002
    Date of Patent: February 17, 2004
    Assignee: Calgon Corporation
    Inventors: Gary F. Matz, Randy J. Loeffler, Shih-Ruey T. Chen, Allan L. Melby, Nicholas F. Vozza
  • Publication number: 20030114315
    Abstract: Coacervate gels having excellent shear viscosities and other properties are made with anionic or cationic polymers, a smaller amount of a surfactant having a charge opposite that of the polymer, and a hydrophobic alcohol. The Zeta Potential of the gel is maintained at an absolute value of at least 20. Optional gel promoting additives include betaines and amine oxides. A preferred gel comprises poly diallyl dimethyl ammonium chloride, a lesser amount of sodium lauryl sulfonate, and lauryl alcohol. The gels are particularly useful in well drilling fluids and well fracturing fluids.
    Type: Application
    Filed: August 27, 2002
    Publication date: June 19, 2003
    Applicant: Clearwater, Inc.
    Inventors: Kevin M. Schwartz, Kevin W. Smith, Shih-Ruey T. Chen
  • Publication number: 20030083204
    Abstract: The present invention provides methods of treating subterranean zones penetrated by well bores in primary well cementing operations, well completion operations, production stimulation treatments and the like. The methods are basically comprised of introducing into the subterranean zone an aqueous well treating fluid comprised of water and a water soluble polymer complex fluid loss control additive.
    Type: Application
    Filed: April 15, 2002
    Publication date: May 1, 2003
    Inventors: Jiten Chatterji, Roger S. Cromwell, Bobby J. King, D. Chad Brenneis, Dennis W. Gray, Ronald J. Crook, Shih-Ruey T. Chen, Valentino L. DeVito, Kevin W. Frederick, Kevin W. Smith, Randy J. Loeffler
  • Publication number: 20030064044
    Abstract: A composition for treating a keratin based substrate that includes a cosmetically acceptable medium containing a water-soluble interjacent complex. The water-soluble interjacent complex includes a first water-soluble polymer and a second water-soluble polymer formed by polymerizing one or more water-soluble monomers in the presence of the first water-soluble polymer. The water-soluble interjacent complex is characterized in that it forms a solution in water that is free of insoluble polymer particles. The water-soluble interjacent complex is used in a method of treating a keratin based substrate, whereby a cosmetically acceptable medium is applied to the substrate and contains from 0.1-20% by weight of the water-soluble interjacent complex.
    Type: Application
    Filed: April 15, 2002
    Publication date: April 3, 2003
    Inventors: Shih-Ruey T. Chen, Valentino L. DeVito, Kevin W. Frederick