Patents by Inventor En-Wei Lin

En-Wei Lin 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: 20250075432
    Abstract: In some embodiments, a process can include combining a plurality of fibers and water to produce a slurry, forming the slurry into a wet paper web, pressing and draining the wet paper web to produce a wet paper sheet, and drying the wet paper sheet to produce a paper product. A strengthening agent can be combined with the fibers and water to produce the slurry, applied to the wet paper web, and/or applied to the wet paper sheet. The strengthening agent can include a polyamidoamine-epihalohydrin resin and an additive. The additive can include a tannin and/or a compound having a chemical formula (I) of: where: R1, R2, and R3 can independently be a hydroxyl group or a methoxy group, and R4, R5, and R6 can independently be H, an alkyl group, an aldehyde group, a carboxylic acid group, or a —C?C—COOH group.
    Type: Application
    Filed: August 30, 2024
    Publication date: March 6, 2025
    Applicant: ECOLAB USA INC.
    Inventors: En-Wei Lin, Stephen Raye Marrou, Gary Samuel Furman, JR.
  • Patent number: 11332563
    Abstract: Copolymers and compositions containing copolymers having advantageous viscosity, friction reduction, dissolution, pH-stability, and temperature-stability are provided. These copolymers can be used as rheology modifiers for oil field applications.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: May 17, 2022
    Assignee: Ecolab USA Inc.
    Inventors: Paul Joseph Zinn, En-Wei Lin, Heinrich Enoch Bode, Mario Roberto Rojas, Christopher Steven Popeney, Pious Kurian
  • Patent number: 11220624
    Abstract: Compounds, compositions and methods of use thereof are provided, the compounds comprising a hydrophobically modified polyelectrolyte comprising a nonionic monomer, an ionic monomer, a monomer having the structure of Formula 1, and a monomer having the structure of Formula 2, wherein R1, R2, R3, R5, R6, and R7 are independently hydrogen, unsubstituted alkyl, substituted alkyl, carbonyl, carboxyl, aryl, or alkaryl; R4 is linear C3 to C30 alkyl; R8 is branched C3 to C30 alkyl; X1 and X2 are independently —C(O)O—, —C(O)NR9—, —O—, —C(R9)2O—, -arylene-, -arylene-C(R9)2O—, -arylene-C(R9)2N(R10)— or -arylene-C(R9)2N+(R10)2—; R9 and R10 is independently hydrogen or a C1 to C4 alkyl; and wherein a molar ratio of the monomer of Formula 1 to the monomer of Formula 2 is from about 1.5:1 to about 15:1. The compounds are useful as viscosifying agents in oil and gas applications.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: January 11, 2022
    Assignee: ChampionX USA Inc.
    Inventors: Christopher Steven Popeney, En-Wei Lin, Paul Joseph Zinn, Pious Kurian, Heinrich Enoch Bode
  • Publication number: 20210079143
    Abstract: Strengthening resins and processes for making and using same. In some embodiments, a resin mixture can include a solvent and a strengthening resin. The strengthening resin can include one or more hydrophobic monomers incorporated therein. The strengthening resin can have a chemical formula of (I). The chemical formula (I) can include: where each R2 can be derived from a hydrophobic monomer.
    Type: Application
    Filed: August 3, 2020
    Publication date: March 18, 2021
    Applicant: ECOLAB USA INC.
    Inventors: Gary S. Furman, En-Wei Lin, Mei Liu, David J. Castro, Christopher D. Kaley
  • Publication number: 20200032133
    Abstract: Compounds, compositions and methods of use thereof are provided, the compounds comprising a hydrophobically modified polyelectrolyte comprising a nonionic monomer, an ionic monomer, a monomer having the structure of Formula 1, and a monomer having the structure of Formula 2, wherein R1, R2, R3, R5, R6, and R7 are independently hydrogen, unsubstituted alkyl, substituted alkyl, carbonyl, carboxyl, aryl, or alkaryl; R4 is linear C3 to C30 alkyl; R8 is branched C3 to C30 alkyl; X1 and X2 are independently —C(O)O—, —C(O)NR9—, —O—, —C(R9)2O—, -arylene-, -arylene-C(R9)2O—, -arylene-C(R9)2N(R10)— or -arylene-C(R9)2N+(R10)2—; R9 and R10 is independently hydrogen or a C1 to C4 alkyl; and wherein a molar ratio of the monomer of Formula 1 to the monomer of Formula 2 is from about 1.5:1 to about 15:1. The compounds are useful as viscosifying agents in oil and gas applications.
    Type: Application
    Filed: July 26, 2019
    Publication date: January 30, 2020
    Inventors: Christopher Steven Popeney, En-Wei Lin, Paul Joseph Zinn, Pious Kurian, Heinrich Enoch Bode
  • Publication number: 20200031968
    Abstract: Copolymers and compositions containing copolymers having advantageous viscosity, friction reduction, dissolution, pH-stability, and temperature-stability are provided. These copolymers can be used as rheology modifiers for oil field applications.
    Type: Application
    Filed: July 26, 2019
    Publication date: January 30, 2020
    Inventors: Paul Joseph Zinn, En-Wei Lin, Heinrich Enoch Bode, Mario Roberto Rojas, Christopher Steven Popeney, Pious Kurian
  • Patent number: 10543280
    Abstract: Compositions and methods for stabilizing biomolecules are disclosed. Specifically, the compositions include novel homopolymers or copolymers containing trehalose side chains conjugated to biomolecules. When such homopolymers or copolymers are placed in close proximity to biomolecules, such as proteins, the homopolymers or copolymers protect and/or stabilize the biomolecule. The compositions and methods may be suitable for use in various industries such as healthcare (pharmaceuticals), molecular biology, biofuels, paper, personal care, detergent, photographic, rubber, brewing, dairy and food processing industries.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: January 28, 2020
    Assignee: The Regents of the University of California
    Inventors: Heather D. Maynard, Rock J. Mancini, Juneyoung Lee, En-Wei Lin
  • Publication number: 20190125885
    Abstract: Compositions and methods for stabilizing biomolecules are disclosed. Specifically, the compositions include novel homopolymers or copolymers containing trehalose side chains conjugated to biomolecules. When such homopolymers or copolymers are placed in close proximity to biomolecules, such as proteins, the homopolymers or copolymers protect and/or stabilize the biomolecule. The compositions and methods may be suitable for use in various industries such as healthcare (pharmaceuticals), molecular biology, biofuels, paper, personal care, detergent, photographic, rubber, brewing, dairy and food processing industries.
    Type: Application
    Filed: January 29, 2018
    Publication date: May 2, 2019
    Inventors: Heather D. Maynard, Rock J. Mancini, Juneyoung Lee, En-Wei Lin
  • Patent number: 9901648
    Abstract: Compositions and methods for stabilizing biomolecules are disclosed. Specifically, the compositions include novel homopolymers or copolymers containing trehalose side chains conjugated to biomolecules. When such homopolymers or copolymers are placed in close proximity to biomolecules, such as proteins, the homopolymers or copolymers protect and/or stabilize the biomolecule. The compositions and methods may be suitable for use in various industries such as healthcare (pharmaceuticals), molecular biology, biofuels, paper, personal care, detergent, photographic, rubber, brewing, dairy and food processing industries.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: February 27, 2018
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Heather D. Maynard, Rock J. Mancini, Juneyoung Lee, En-Wei Lin
  • Publication number: 20140377838
    Abstract: Compositions and methods for stabilizing biomolecules are disclosed. Specifically, the compositions include novel homopolymers or copolymers containing trehalose side chains conjugated to biomolecules. When such homopolymers or copolymers are placed in close proximity to biomolecules, such as proteins, the homopolymers or copolymers protect and/or stabilize the biomolecule. The compositions and methods may be suitable for use in various industries such as healthcare (pharmaceuticals), molecular biology, biofuels, paper, personal care, detergent, photographic, rubber, brewing, dairy and food processing industries.
    Type: Application
    Filed: January 25, 2013
    Publication date: December 25, 2014
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Heather D. Maynard, Rock J. Mancini, Juneyoung Lee, En-Wei Lin