Patents by Inventor Guoqing TAO

Guoqing TAO 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).

  • Enzymatic method for preparing Rebaudioside C
    Patent number: 11976312
    Abstract: Provided is a method for preparing Rebaudioside C using an enzymatic method, comprising using rubusoside or dulcoside A as a substrate, and making the substrate, in the presence of a glycosyl donor, react under the catalysis of UDP-glycosyltransferase-containing recombinant cell and/or UDP-glycosyltransferase prepared therefrom to generate Rebaudioside C.
    Type: Grant
    Filed: March 30, 2022
    Date of Patent: May 7, 2024
    Assignee: PepsiCo, Inc.
    Inventors: Alex Tao, Guoqing Li, Wenxia Wang, Leilei Zheng, Chunlei Zhu, Xiaoliang Liang, Kuikiu Chan
  • Enzymatic method for preparing rebaudioside N
    Patent number: 11976313
    Abstract: Provided is a method for preparing rebaudioside N using an enzymatic method, comprising using rebaudioside A or rebaudioside J as a substrate, and making the substrate, in the presence of a glycosyl donor, react under the catalysis of a UDP-glycosyl-transferase and/or a UDP-glycosyltransferase-containing recombinant cell to generate rebaudioside N.
    Type: Grant
    Filed: May 16, 2022
    Date of Patent: May 7, 2024
    Assignee: PepsiCo, Inc.
    Inventors: Alex Tao, Guoqing Li, Wenxia Wang, Leilei Zheng, Chunlei Zhu, Xiaoliang Liang, Kuikiu Chan
  • Enzymatic method for preparing Rebaudioside J
    Patent number: 11952604
    Abstract: Provided is a method for preparing Rebaudioside J using an enzymatic method, comprising using rebaudioside A as a substrate, and making the substrate, in the presence of a glycosyl donor, react under the catalysis of a UDP-glycosyltransferase-containing recombinant cell and/or UDP-glycosyltransferase prepared therefrom to generate Rebaudioside J.
    Type: Grant
    Filed: June 6, 2022
    Date of Patent: April 9, 2024
    Assignee: PepsiCo, Inc.
    Inventors: Alex Tao, Guoqing Li, Wenxia Wang, Leilei Zheng, Chunlei Zhu, Xiaoliang Liang, Kuikiu Chan
  • Process of producing omega-hydroxyl fatty acid from alkane
    Patent number: 11306334
    Abstract: Provided is a method of producing at least one omega-hydroxyl fatty acid, the method comprising: (a) contacting at least one alkane with at least one recombinant yeast cell in an aqueous medium, wherein the yeast cell is capable of oxidising the alkane to the corresponding omega-hydroxyl fatty acid and the yeast cell comprises a reduced fatty acid degradation capacity.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: April 19, 2022
    Assignee: Evonik Operations GmbH
    Inventors: Thomas Haas, Markus Poetter, Li Li, Guoqing Tao, Dong Cao
  • PROCESS OF OMEGA-HYDROXYL FATTY ACID PRODUCTION
    Publication number: 20200024624
    Abstract: Provided is a method of producing at least one omega-hydroxyl fatty acid, the method comprising: (a) contacting at least one alkane with at least one recombinant yeast cell in an aqueous medium, wherein the yeast cell is capable of oxidising the alkane to the corresponding omega-hydroxyl fatty acid and the yeast cell comprises a reduced fatty acid degradation capacity.
    Type: Application
    Filed: July 26, 2017
    Publication date: January 23, 2020
    Applicant: Evonik Degussa GmbH
    Inventors: Thomas HAAS, Markus POTTER, Li LI, Guoqing TAO, Dong CAO
  • Holder for toothpick
    Patent number: D1005055
    Type: Grant
    Filed: July 12, 2023
    Date of Patent: November 21, 2023
    Inventor: Guoqing Tao
  • Dental floss holder
    Patent number: D1012370
    Type: Grant
    Filed: September 22, 2023
    Date of Patent: January 23, 2024
    Inventor: Guoqing Tao