Patents by Inventor Guohong Mao

Guohong Mao 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: 20250145675
    Abstract: Provided herein are biosynthetic methods for producing brazzein and related compositions. Uses (e.g., as sweeteners) of the brazzein produced using the methods are also provided.
    Type: Application
    Filed: June 17, 2024
    Publication date: May 8, 2025
    Applicant: Conagen Inc.
    Inventors: Guohong Mao, Timothy Joseph Hanly, Oliver Yu
  • Publication number: 20240301462
    Abstract: The present invention relates to novel steviol glycosides rebaudioside R6-5, rebaudioside R6-6, and rebaudioside R7-5 and the production of these novel steviol glycosides, such as through enzymatic bioconversion.
    Type: Application
    Filed: October 10, 2023
    Publication date: September 12, 2024
    Applicant: Conagen Inc.
    Inventors: Guohong Mao, Albertus Jan Vermeulen, Shi Sun, Oliver Yu
  • Publication number: 20240229094
    Abstract: The present invention relates to the production of steviol glycoside rebaudiosides D4, WB1 and WB2 and the production of rebaudioside M from Reb D4.
    Type: Application
    Filed: April 19, 2023
    Publication date: July 11, 2024
    Applicant: Conagen Inc.
    Inventors: Guohong Mao, Jacob Edward Vick, Michael Batten, David Byun, Yang Luo, Yilin Wu, Beihua Zhang, Xiaodan Yu
  • Publication number: 20240132929
    Abstract: The present invention relates to the production of steviol glycoside rebaudiosides D4, WB1 and WB2 and the production of rebaudioside M from Reb D4.
    Type: Application
    Filed: April 18, 2023
    Publication date: April 25, 2024
    Applicant: Conagen Inc.
    Inventors: Guohong Mao, Jacob Edward Vick, Michael Batten, David Byun, Yang Luo, Yilin Wu, Beihua Zhang, Xiaodan Yu
  • Publication number: 20240093255
    Abstract: The present invention provides a novel biosynthetic production process which converts L-galactose into 2?-fucosyllactose via four enzymatically catalyzed reaction steps. The present process is designed such that co-factors required by the process are regenerated within the four reaction steps, hence making the process cost-effective and efficient. The process can be performed in vitro in a cell-free system. The present invention also provides mutant enzymes that can be used to increase production levels of 2?-fucosyllactose, whether using the novel pathway described herein or the mannose-dependent pathway known in the art.
    Type: Application
    Filed: February 17, 2023
    Publication date: March 21, 2024
    Applicant: Conagen Inc.
    Inventors: Guohong Mao, Meaghan Valliere, Johnson Wu, Oliver Yu, Sean Robert Johnson
  • Patent number: 11884694
    Abstract: Disclosed are steviol glycosides referred to as rebaudioside V and rebaudioside W. Also disclosed are methods for producing rebaudioside M (Reb M), rebausoside G (Reb G), rebaudioside KA (Reb KA), rebaudioside V (Reb V) and rebaudioside (Reb W).
    Type: Grant
    Filed: November 29, 2021
    Date of Patent: January 30, 2024
    Assignee: Conagen Inc.
    Inventors: Guohong Mao, Xiaodan Yu
  • Publication number: 20230313254
    Abstract: Provided herein are methods for identifying and isolating polynucleotides coding for polypeptides having D-allulose 3-epimerase activity from a wide variety of microorganisms. Also provided are nucleic acid constructs, vectors and recombinant host cells comprising the polynucleotides coding for D-allulose 3-epimerase activity as well as methods for producing allulose from fructose using said recombinant host cells having D-allulose 3-epimerase activity or the D-allulose 3-epimerase enzyme of said recombinant host cells having D-allulose 3-epimerase activity.
    Type: Application
    Filed: November 10, 2022
    Publication date: October 5, 2023
    Applicant: Conagen Inc.
    Inventors: Guohong Mao, Michael Batten, Oliver Yu, Timothy Joseph Hanly, Phillip James Hunt, Hongfang Liu, Yang Luo
  • Patent number: 11680281
    Abstract: The present invention relates to the production of steviol glycoside rebaudiosides D4, WB1 and WB2 and the production of rebaudioside M from Reb D4.
    Type: Grant
    Filed: June 18, 2020
    Date of Patent: June 20, 2023
    Assignee: Conagen Inc.
    Inventors: Guohong Mao, Jacob Edward Vick, Michael Batten, David Byun, Yang Luo, Yilin Wu, Beihua Zhang, Xiaodan Yu
  • Publication number: 20230002435
    Abstract: Disclosed are steviol glycosides referred to as rebaudioside V and rebaudioside W. Also disclosed are methods for producing rebaudioside M (Reb M), rebausoside G (Reb G), rebaudioside KA (Reb KA), rebaudioside V (Reb V) and rebaudioside (Reb W).
    Type: Application
    Filed: August 19, 2022
    Publication date: January 5, 2023
    Applicant: Conagen Inc.
    Inventors: Guohong Mao, Xiaodan Yu
  • Publication number: 20220411843
    Abstract: The present invention relates, at least in part, to the production of steviol glycoside rebaudioside I through the use of variant UGT enzymes having activity to transfer a glucosyl group from UDP-glucose to rebaudioside A to produce rebaudioside I.
    Type: Application
    Filed: August 12, 2022
    Publication date: December 29, 2022
    Applicant: Conagen Inc,
    Inventors: Guohong Mao, Michael Batten, Oliver Yu
  • Patent number: 11453692
    Abstract: Disclosed are steviol glycosides referred to as rebaudioside V and rebaudioside W. Also disclosed are methods for producing rebaudioside M (Reb M), rebausoside G (Reb G), rebaudioside KA (Reb KA), rebaudioside V (Reb V) and rebaudioside (Reb W).
    Type: Grant
    Filed: February 24, 2020
    Date of Patent: September 27, 2022
    Assignee: Conagen Inc.
    Inventors: Guohong Mao, Xiaodan Yu
  • Patent number: 11447808
    Abstract: The present invention relates, at least in part, to the production of steviol glycoside rebaudioside I through the use of variant UGT enzymes having activity to transfer a glucosyl group from UDP-glucose to rebaudioside A to produce rebaudioside I.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: September 20, 2022
    Assignee: Conagen Inc.
    Inventors: Guohong Mao, Michael Batten, Xiaodan Yu
  • Patent number: 11441165
    Abstract: The present disclosure relates to the production of steviol glycosides rebaudioside J and rebaudioside N through the use of rebaudioside A as a substrate and a biosynthetic pathway involving various 1,2 RhaT-rhamnosyltransferases.
    Type: Grant
    Filed: December 2, 2020
    Date of Patent: September 13, 2022
    Assignee: Conagen Inc.
    Inventors: Guohong Mao, Michael Batten, Phillip Hunt, Oliver (Xiaodan) Yu
  • Publication number: 20220282297
    Abstract: The present invention relates, in some aspects, to the production of steviol glycoside rebaudioside D4 through the use of rebaudioside E. In some aspects, the invention relates to mutant CP1 enzymes, mutant HV1 enzymes as well as host cells and methods utilizing such enzymes, such as to produce rebaudioside D4.
    Type: Application
    Filed: March 17, 2022
    Publication date: September 8, 2022
    Applicant: Conagen Inc.
    Inventors: Guohong Mao, Jacob Edward Vick, Michael Batten, Yang Luo, Yilin Wu, Xiaodan Yu
  • Patent number: 11414689
    Abstract: The present disclosure relates to the use of beta-glucosidase to enhance the production efficiency of desired steviol glycosides, such as rebaudioside M (reb M).
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: August 16, 2022
    Assignee: Conagen Inc.
    Inventors: Guohong Mao, Jacob Edward Vick, Michael Batten, Oliver Yu
  • Publication number: 20220205007
    Abstract: The present invention relates, at least in part, to the production of steviol glycoside rebaudioside I through the use of variant UGT enzymes having activity to transfer a glucosyl group from UDP-glucose to rebaudioside A to produce rebaudioside I.
    Type: Application
    Filed: January 7, 2022
    Publication date: June 30, 2022
    Applicant: Conagen Inc.
    Inventors: Guohong Mao, Michael Batten, Xiaodan Yu
  • Publication number: 20220162248
    Abstract: Disclosed are steviol glycosides referred to as rebaudioside V and rebaudioside W. Also disclosed are methods for producing rebaudioside M (Reb M), rebausoside G (Reb G), rebaudioside KA (Reb KA), rebaudioside V (Reb V) and rebaudioside (Reb W).
    Type: Application
    Filed: November 29, 2021
    Publication date: May 26, 2022
    Applicant: Conagen Inc.
    Inventors: Guohong Mao, Xiaodan Yu
  • Patent number: 11306340
    Abstract: The present invention relates, in some aspects, to the production of steviol glycoside rebaudioside D4 through the use of rebaudioside E. In some aspects, the invention relates to mutant CP1 enzymes, mutant HV1 enzymes as well as host cells and methods utilizing such enzymes, such as to produce rebaudioside D4.
    Type: Grant
    Filed: September 6, 2019
    Date of Patent: April 19, 2022
    Assignee: Conagen Inc.
    Inventors: Guohong Mao, Jacob Edward Vick, Michael Batten, Yang Luo, Yilin Wu, Xiaodan Yu
  • Publication number: 20220090158
    Abstract: The present disclosure relates to the biosynthesis of UDP-Rhamnose and recombinant polypeptides having enzymatic activity useful in the relevant biosynthetic pathways for producing UDP-Rhamnose. The present invention also provides a method for preparing a steviol glycoside composition comprising at least one rhamnose-containing steviol glycoside.
    Type: Application
    Filed: September 28, 2021
    Publication date: March 24, 2022
    Applicant: Conagen Inc.
    Inventors: Guohong Mao, Phillip James Hunt, Michael James Batten, Timothy Joseph Hanley, Oliver Yu
  • Publication number: 20220042060
    Abstract: The present invention relates to the production of steviol glycoside rebaudiosides D4, WB1 and WB2 and the production of rebaudioside M from Reb D4.
    Type: Application
    Filed: July 28, 2021
    Publication date: February 10, 2022
    Applicant: Conagen Inc.
    Inventors: Guohong Mao, Jacob Edward Vick, Michael Batten, Yang Luo, Yilin Wu, Beihua Zhang, David Byun, Xiaodan Yu