Patents by Inventor Xiaojin Harry Li

Xiaojin Harry Li 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).

  • Publication number: 20230365882
    Abstract: Lubricity additives for hydrocarbon fuels are presented according to formula I: R1[(—O—R2)n-Q]p??(I) wherein p is 3 or greater; each n is independently selected from integers equal to 2 or greater; R1 is a C3-C20 aliphatic hydrocarbon group of valence p which is branched or linear and which is substituted or unsubstituted; each R2 is independently selected from C2-C20 divalent aliphatic or aromatic hydrocarbon groups which are branched or linear and which are substituted or unsubstituted; and each Q is independently selected from —NH2 or a moiety according to formula II: wherein each R3 is independently selected from C8-C60 alkenyl groups which are substituted or unsubstituted, providing that at least one Q is the moiety according to formula II.
    Type: Application
    Filed: July 19, 2023
    Publication date: November 16, 2023
    Inventors: Ashish Dhawan, Xiaojin Harry Li, Nestor U. Soriano, JR., Karina Eureste
  • Patent number: 11746302
    Abstract: Lubricity additives for hydrocarbon fuels are presented according to formula I: R1[(—O—R2)n-Q]p??(I) wherein p is 3 or greater; each n is independently selected from integers equal to 2 or greater; R1 is a C3-C20 aliphatic hydrocarbon group of valence p which is branched or linear and which is substituted or unsubstituted; each R2 is independently selected from C2-C20 divalent aliphatic or aromatic hydrocarbon groups which are branched or linear and which are substituted or unsubstituted; and each Q is independently selected from —NH2 or a moiety according to formula II: wherein each R3 is independently selected from C8-C60 alkenyl groups which are substituted or unsubstituted, providing that at least one Q is the moiety according to formula II.
    Type: Grant
    Filed: May 13, 2022
    Date of Patent: September 5, 2023
    Assignee: ECOLAB USA INC.
    Inventors: Ashish Dhawan, Xiaojin Harry Li, Nestor U. Soriano, Jr., Karina Eureste
  • Publication number: 20230220291
    Abstract: An anti-static fuel additive composition and method for using the composition to reduce or prevent buildup of electrostatic charge is described. The anti-static fuel additive composition comprises a polysulfone and a copolymer derived from reaction of an alkanolamine and a hydrocarbyl-substituted 4-membered to 7-memebered ring anhydride; for example, a hydrocarbyl-substituted succinic anhydride, a hydrocarbyl-substituted maleic anhydride, a hydrocarbyl-substituted phthalic anhydride, or a combination thereof.
    Type: Application
    Filed: January 11, 2023
    Publication date: July 13, 2023
    Inventors: Xiaojin Harry Li, Ashish Dhawan, Nestor Soriano, John Matthew Chudomel
  • Publication number: 20220364006
    Abstract: Lubricity additives for hydrocarbon fuels are presented according to formula I: R1[(—O—R2)n-Q]p??(I) wherein p is 3 or greater; each n is independently selected from integers equal to 2 or greater; R1 is a C3-C20 aliphatic hydrocarbon group of valence p which is branched or linear and which is substituted or unsubstituted; each R2 is independently selected from C2-C20 divalent aliphatic or aromatic hydrocarbon groups which are branched or linear and which are substituted or unsubstituted; and each Q is independently selected from —NH2 or a moiety according to formula II: wherein each R3 is independently selected from C8-C60 alkenyl groups which are substituted or unsubstituted, providing that at least one Q is the moiety according to formula II.
    Type: Application
    Filed: May 13, 2022
    Publication date: November 17, 2022
    Inventors: Ashish Dhawan, Xiaojin Harry Li, Nestor U. Soriano, JR., Karina Eureste
  • Patent number: 11136425
    Abstract: Disclosed herein are water-soluble polymers comprising hydrolyzable cross-linked monomer units, and methods for recovering hydrocarbon fluids from a subterranean formation using the water-soluble polymers.
    Type: Grant
    Filed: October 7, 2019
    Date of Patent: October 5, 2021
    Assignee: ChampionX USA Inc.
    Inventors: Peter E. Reed, William J. Andrews, Mingli Wei, Xiaojin Harry Li
  • Patent number: 11118099
    Abstract: Emulsions of mobility control polymers can be used to increase recovery of crude oil from a subterranean hydrocarbon-containing formation. A flooding fluid comprising the polymer emulsions are injected into a well that is in contact with the subterranean hydrocarbon-containing formation. The polymers can be temporarily cross-linked and have protected shear degradation and improved injectivity into the well; the shear resistance can be measured in terms of viscosity loss due to shear, and the improved injectivity can be measured in terms of the flooding fluid's filter ratio, flow rate, and viscosity.
    Type: Grant
    Filed: October 14, 2019
    Date of Patent: September 14, 2021
    Assignee: ChampionX USA Inc.
    Inventors: Xiaojin Harry Li, Peter E. Reed, William J. Andrews
  • Patent number: 11118126
    Abstract: Disclosed are cloud point depressants and methods of making and using them. The disclosed cloud point depressants comprise copolymers of an unsaturated anhydride polymerized with alkyl ?-olefins and then contacted with a phenyl alkyl alcohol or alkyl phenol alkoxylate, fatty alcohol and primary or secondary fatty amine to provide a cloud depressant reaction product. When the disclosed reaction products are added to middle distillate fuels or blends of middle distillate fuels with biodiesel, the cloud point depressants inhibit the precipitation of waxes and/or biowaxes in the fuels and the fuels exhibit reduced precipitation, gelling, and/or crystallization when subjected to low or cold temperatures.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: September 14, 2021
    Assignee: Ecolab USA Inc.
    Inventors: Xiaojin Harry Li, Nestor U. Soriano, Jr., Heinrich Bode
  • Publication number: 20210095183
    Abstract: A polymer composition has been developed that provides low viscosity oil-in-water polymer emulsions that are stable to shear conditions and are storage stable at low temperature conditions (e.g., ?6.7° C. or less) or higher temperature conditions (e.g., up to 60° C.). Use of particular additives provides stability to the emulsion and imparts advantageous properties when the polymer composition is contacted with a hydrocarbon fluid. These compositions are particularly useful as drag reducers for delivery to a subsea flowline via an umbilical line.
    Type: Application
    Filed: September 30, 2020
    Publication date: April 1, 2021
    Inventors: Xiaojin Harry Li, Tri T. Phan, Tzu-Ping Hsu, Kerry O'Connell, Michael Cash
  • Publication number: 20200308390
    Abstract: A polymer composition has been developed that provides low viscosity oil-in-water polymer emulsions that release the polymer in the emulsion at a faster rate and without an additional surfactant when the emulsion is added to a hydrocarbon stream. Use of a temperature-sensitive emulsifying surfactant facilitates inversion of the oil-in-water polymer emulsion when applied to a hydrocarbon composition at a temperature sufficiently high to destabilize the emulsion. These compositions are particularly useful as drag reducers for delivery to a subsea flowline via an umbilical line.
    Type: Application
    Filed: March 30, 2020
    Publication date: October 1, 2020
    Inventors: Tri T. Phan, Kerry Charles Brinkman, Xiaojin Harry Li, Nicolas J. Leflemme, Jeremy Moloney, Michael Cash
  • Patent number: 10703961
    Abstract: Water-in-oil lattices of water soluble or dispersible polymers and methods of using the same are presented. The lattices include phosphorus functional inversion agents that provide rapid and complete inversion of the lattices under conditions wherein the water source used to invert the latex is provided at high temperature, or includes a high level of total dissolved solids, or is both high temperature and high total dissolved solids.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: July 7, 2020
    Assignee: Ecolab USA Inc.
    Inventors: Xiaojin Harry Li, Anand Parthasarathy
  • Patent number: 10577532
    Abstract: Water-in-oil latices of water soluble or dispersible polymers and methods of using the same are presented. The latices include nonionic inversion agents that provide rapid and complete inversion of the latices under conditions wherein the water source used to invert the latex is provided at high temperature, or includes a high level of total dissolved solids, or is both high temperature and high total dissolved solids.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: March 3, 2020
    Assignee: Ecolab USA Inc.
    Inventors: Xiaojin Harry Li, Anand Parthasarathy
  • Publication number: 20200040251
    Abstract: Emulsions of mobility control polymers can be used to increase recovery of crude oil from a subterranean hydrocarbon-containing formation. A flooding fluid comprising the polymer emulsions are injected into a well that is in contact with the subterranean hydrocarbon-containing formation. The polymers can be temporarily cross-linked and have protected shear degradation and improved injectivity into the well; the shear resistance can be measured in terms of viscosity loss due to shear, and the improved injectivity can be measured in terms of the flooding fluid's filter ratio, flow rate, and viscosity.
    Type: Application
    Filed: October 14, 2019
    Publication date: February 6, 2020
    Inventors: Xiaojin Harry Li, Peter E. Reed, William J. Andrews
  • Publication number: 20200031972
    Abstract: Disclosed herein are water-soluble polymers comprising hydrolyzable cross-linked monomer units, and methods for recovering hydrocarbon fluids from a subterranean formation using the water-soluble polymers.
    Type: Application
    Filed: October 7, 2019
    Publication date: January 30, 2020
    Inventors: Peter E. Reed, William J. Andrews, Mingli Wei, Xiaojin Harry Li
  • Publication number: 20200017786
    Abstract: Disclosed are cloud point depressants and methods of making and using them. The disclosed cloud point depressants comprise copolymers of an unsaturated anhydride polymerized with alkyl ?-olefins and then contacted with a phenyl alkyl alcohol or alkyl phenol alkoxylate, fatty alcohol and primary or secondary fatty amine to provide a cloud depressant reaction product. When the disclosed reaction products are added to middle distillate fuels or blends of middle distillate fuels with biodiesel, the cloud point depressants inhibit the precipitation of waxes and/or biowaxes in the fuels and the fuels exhibit reduced precipitation, gelling, and/or crystallization when subjected to low or cold temperatures.
    Type: Application
    Filed: July 9, 2019
    Publication date: January 16, 2020
    Inventors: Xiaojin Harry Li, Nestor U. Soriano, Jr., Heinrich Bode
  • Patent number: 10519602
    Abstract: An acrylamide-based polymer which contains one or more multiquaternized (“multiquat”) monomer unit(s) is provided. The acrylamide-based polymer can be used in a papermaking process to reduce pitch and stickies deposition, improve retention and drainage, and enhance dry strength properties of paper. Also included is a method of controlling pitch and stickies deposition in papermaking comprising treating pulp slurry with an acrylamide-based polymer which contains one or more multiquaternized (“multiquat”) monomer unit(s).
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: December 31, 2019
    Assignee: Ecolab USA Inc.
    Inventors: Xiaojin Harry Li, Sergey M. Shevchenko, Ross Gray, Robert M. Lowe, David Jordan, Zhengang Zong
  • Patent number: 10442980
    Abstract: Emulsions of mobility control polymers can be used to increase recovery of crude oil from a subterranean hydrocarbon-containing formation. A flooding fluid comprising the polymer emulsions are injected into a well that is in contact with the subterranean hydrocarbon-containing formation. The polymers can be temporarily cross-linked and have protected shear degradation and improved injectivity into the well; the shear resistance can be measured in terms of viscosity loss due to shear, and the improved injectivity can be measured in terms of the flooding fluid's filter ratio, flow rate, and viscosity.
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: October 15, 2019
    Assignee: Ecolab USA Inc.
    Inventors: Xiaojin Harry Li, Peter E. Reed, William J. Andrews
  • Patent number: 10435496
    Abstract: Disclosed herein are water-soluble polymers comprising hydrolyzable cross-linked monomer units, and methods for recovering hydrocarbon fluids from a subterranean formation using the water-soluble polymers.
    Type: Grant
    Filed: January 14, 2014
    Date of Patent: October 8, 2019
    Assignee: Ecolab USA Inc.
    Inventors: Peter E. Reed, William J. Andrews, Mingli Wei, Xiaojin Harry Li
  • Patent number: 10323114
    Abstract: Disclosed herein are water-soluble polymers comprising hydrolyzable cross-linked monomer units, and methods for recovering hydrocarbon fluids from a subterranean formation using the water-soluble polymers.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: June 18, 2019
    Assignee: Ecolab USA Inc.
    Inventors: Peter E. Reed, William J. Andrews, Mingli Wei, Xiaojin Harry Li
  • Publication number: 20180363247
    Abstract: An acrylamide-based polymer which contains one or more multiquaternized (“multiquat”) monomer unit(s) is provided. The acrylamide-based polymer can be used in a papermaking process to reduce pitch and stickies deposition, improve retention and drainage, and enhance dry strength properties of paper. Also included is a method of controlling pitch and stickies deposition in papermaking comprising treating pulp slurry with an acrylamide-based polymer which contains one or more multiquaternized (“multiquat”) monomer unit(s).
    Type: Application
    Filed: June 14, 2018
    Publication date: December 20, 2018
    Applicant: Ecolab USA Inc.
    Inventors: Xiaojin Harry Li, Sergey M. Shevchenko, Ross Gray, Robert M. Lowe, David Jordan, Zhengang Zong
  • Patent number: 10112843
    Abstract: In the mining process, linear, branched, hyperbranched or dendrimeric polyols or mixtures thereof are employed as process stabilization aids for aqueous solutions and, or suspensions of metal salts. A specific application area of the polyols is the stabilization of bauxite liquor in the Bayer process of producing alumina from bauxite.
    Type: Grant
    Filed: January 11, 2016
    Date of Patent: October 30, 2018
    Assignee: Ecolab USA Inc.
    Inventors: Jing Wang, Xiaojin Harry Li, Heinrich Enoch Bode