Patents by Inventor Hongxian He

Hongxian He 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: 20240018497
    Abstract: Compositions and methods are provided for variant Cas systems and elements comprising such systems, including, but not limiting to, Cas endonuclease variants, guide polynucleotide/Cas endonuclease complexes comprising Cas endonuclease variants, as well as guide polynucleotides and guide RNA elements that can interact with Cas endonuclease variants. Compositions and methods are provided for genome modification of a target sequence in the genome of a cell. The methods and compositions employ a guide polynucleotide/Cas endonuclease system comprising a Cas9 endonuclease variant to provide an effective system for modifying or altering target sequences within the genome of a cell or organism.
    Type: Application
    Filed: August 28, 2023
    Publication date: January 18, 2024
    Inventors: RYAN L FRISCH, HONGXIAN HE
  • Patent number: 11866713
    Abstract: The present disclosure is generally related to compositions and methods for obtaining Bacillus licheniformis cells/strains having increased protein production capabilities. Certain embodiments of the disclosure are related to genetically modified Bacillus licheniformis cells/strains derived from parental B. licheniformis cells/strains comprising a variant rghR2 gene.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: January 9, 2024
    Assignee: DANISCO US INC.
    Inventors: Marc Anton Bernhard Kolkman, Steven D. Doig, Ryan L. Frisch, Hongxian He, Frank Wouter Koopman, Chris Leeflang
  • Publication number: 20230340442
    Abstract: The present disclosure is generally related to compositions and methods for constructing and/or obtaining B. licheniformis cells (e.g., protein production hosts) comprising enhanced protein production capabilities. Thus, certain embodiments are related to genetically modified Bacillus licheniformis strains derived from parental B. licheniformis strains producing increased amounts of one or more proteins of interest.
    Type: Application
    Filed: January 14, 2021
    Publication date: October 26, 2023
    Inventors: Steven D. Doig, Ryan L. Frisch, Hongxian He, Chris Leeflang, Zhen Ma, Brian James Paul
  • Patent number: 11781125
    Abstract: Compositions and methods are provided for variant Cas systems and elements comprising such systems, including, but not limiting to, Cas endonuclease variants, guide polynucleotide/Cas endonuclease complexes comprising Cas endonuclease variants, as well as guide polynucleotides and guide RNA elements that can interact with Cas endonuclease variants. Compositions and methods are provided for genome modification of a target sequence in the genome of a cell. The methods and compositions employ a guide polynucleotide/Cas endonuclease system comprising a Cas9 endonuclease variant to provide an effective system for modifying or altering target sequences within the genome of a cell or organism.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: October 10, 2023
    Assignee: DANISCO US INC.
    Inventors: Ryan L. Frisch, Hongxian He
  • Publication number: 20220282234
    Abstract: The present disclosure is generally related to compositions and methods for constructing and obtaining Bacillus licheniformis cells having increased protein production phenotypes. Thus, certain embodiments are related to modified B. licheniformis cells derived from parental B. licheniformis cells. Certain embodiments are related to modified B. licheniformis cells comprising a modified rghR locus. Certain embodiments are related to modified B. licheniformis cells having a modified rghR locus and comprising an increased protein productivity phenotype. In certain other embodiments, modified B. licheniformis cells having a modified rghR locus produce a reduced amount of red pigment. In certain other embodiments, modified B. licheniformis cells comprise an increased protein productivity phenotype and produce a reduced amount of red pigment.
    Type: Application
    Filed: August 10, 2020
    Publication date: September 8, 2022
    Inventors: Ryan L. FRISCH, Hongxian HE
  • Patent number: 10988789
    Abstract: Reaction solutions are disclosed herein comprising water, sucrose and a glucosyltransferase enzyme that synthesizes poly alpha-1,3-glucan. The glucosyltransferase enzyme can synthesize insoluble glucan polymer having at least 50% alpha-1,3 glycosidic linkages and a number average degree of polymerization of at least 100. Further disclosed are methods of using such glucosyltransferase enzymes to produce insoluble poly alpha-1,3-glucan.
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: April 27, 2021
    Assignee: NUTRITION & BIOSCIENCES USA 4, INC.
    Inventors: Mark S. Payne, Yefim Brun, Hongxian He, Thomas Scholz
  • Publication number: 20200325513
    Abstract: Reaction solutions are disclosed herein comprising water, sucrose and a glucosyltransferase enzyme that synthesizes poly alpha-1,3-glucan. The glucosyltransferase enzyme can synthesize insoluble glucan polymer having at least 50% alpha-1,3 glycosidic linkages and a number average degree of polymerization of at least 100. Further disclosed are methods of using such glucosyltransferase enzymes to produce insoluble poly alpha-1,3-glucan.
    Type: Application
    Filed: February 14, 2020
    Publication date: October 15, 2020
    Inventors: MARK S. PAYNE, YEFIM BRUN, HONGXIAN HE, THOMAS SCHOLZ
  • Publication number: 20200308561
    Abstract: Compositions and methods are provided for variant Cas systems and elements comprising such systems, including, but not limiting to, Cas endonuclease variants, guide polynucleotide/Cas endonuclease complexes comprising Cas endonuclease variants, as well as guide polynucleotides and guide RNA elements that can interact with Cas endonuclease variants. Compositions and methods are provided for genome modification of a target sequence in the genome of a cell. The methods and compositions employ a guide polynucleotide/Cas endonuclease system comprising a Cas9 endonuclease variant to provide an effective system for modifying or altering target sequences within the genome of a cell or organism.
    Type: Application
    Filed: December 11, 2018
    Publication date: October 1, 2020
    Inventors: Ryan L. Frisch, Hongxian He
  • Patent number: 10590450
    Abstract: Reaction solutions are disclosed herein comprising water, sucrose and a glucosyltransferase enzyme that synthesizes poly alpha-1,3-glucan. The glucosyltransferase enzyme can synthesize insoluble glucan polymer having at least 50% alpha-1,3 glycosidic linkages and a number average degree of polymerization of at least 100. Further disclosed are methods of using such glucosyltransferase enzymes to produce insoluble poly alpha-1,3-glucan.
    Type: Grant
    Filed: May 2, 2019
    Date of Patent: March 17, 2020
    Assignee: DuPont Industrial Biosciences USA, LLC
    Inventors: Mark S. Payne, Yefim Brun, Hongxian He, Thomas Scholz
  • Publication number: 20200056193
    Abstract: The present disclosure is generally related to compositions and methods for obtaining Bacillus licheniformis cells/strains having increased protein production capabilities. Certain embodiments of the disclosure are related to genetically modified Bacillus licheniformis cells/strains derived from parental B. licheniformis cells/strains comprising a variant rghR2 gene.
    Type: Application
    Filed: February 22, 2018
    Publication date: February 20, 2020
    Inventors: Marc Anton Bernhard Kolkman, Steven D. Doig, Ryan L. Frisch, Hongxian He, Frank Wouter, Chris Leeflang
  • Publication number: 20190276866
    Abstract: Reaction solutions are disclosed herein comprising water, sucrose and a glucosyltransferase enzyme that synthesizes poly alpha-1,3-glucan. The glucosyltransferase enzyme can synthesize insoluble glucan polymer having at least 50% alpha-1,3 glycosidic linkages and a number average degree of polymerization of at least 100. Further disclosed are methods of using such glucosyltransferase enzymes to produce insoluble poly alpha-1,3-glucan.
    Type: Application
    Filed: May 2, 2019
    Publication date: September 12, 2019
    Inventors: Mark S. Payne, Yefim Brun, Hongxian He, Thomas Scholz
  • Patent number: 10308968
    Abstract: Reaction solutions are disclosed herein comprising water, sucrose and a glucosyltransferase enzyme that synthesizes poly alpha-1,3-glucan. The glucosyltransferase enzyme can synthesize insoluble glucan polymer having at least 50% alpha-1,3 glycosidic linkages and a number average degree of polymerization of at least 100. Further disclosed are methods of using such glucosyltransferase enzymes to produce insoluble poly alpha-1,3-glucan.
    Type: Grant
    Filed: October 18, 2018
    Date of Patent: June 4, 2019
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Mark S. Payne, Yefim Brun, Hongxian He, Thomas Scholz
  • Publication number: 20190040432
    Abstract: Reaction solutions are disclosed herein comprising water, sucrose and a glucosyltransferase enzyme that synthesizes poly alpha-1,3-glucan. The glucosyltransferase enzyme can synthesize insoluble glucan polymer having at least 50% alpha-1,3 glycosidic linkages and a number average degree of polymerization of at least 100. Further disclosed are methods of using such glucosyltransferase enzymes to produce insoluble poly alpha-1,3-glucan.
    Type: Application
    Filed: October 18, 2018
    Publication date: February 7, 2019
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: MARK S. PAYNE, YEFIM BRUN, HONGXIAN HE, THOMAS SCHOLZ
  • Patent number: 9790521
    Abstract: Provided herein are recombinant yeast host cells and methods for their use for production of isobutanol. Yeast host cells provided comprise an isobutanol biosynthetic pathway and at least one of reduced or eliminated aldehyde dehydrogenase activity, reduced or eliminated acetolactate reductase activity; or a heterologous polynucleotide encoding a polypeptide having ketol-acid reductoisomerase activity.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: October 17, 2017
    Assignee: Butamax Advanced Biofuels LLC
    Inventors: Larry Cameron Anthony, Hongxian He, Lixuan Lisa Huang, Daniel P. Okeefe, Arthur Leo Kruckeberg, Yougen Li, Lori Ann Maggio-Hall, Jessica McElvain, Mark J. Nelson, Ranjan Patnaik, Steven Cary Rothman
  • Publication number: 20170275652
    Abstract: Provided herein are recombinant yeast host cells and methods for their use for production of isobutanol. Yeast host cells provided comprise an isobutanol biosynthetic pathway and at least one of reduced or eliminated aldehyde dehydrogenase activity, reduced or eliminated acetolactate reductase activity; or a heterologous polynucleotide encoding a polypeptide having ketol-acid reductoisomerase activity.
    Type: Application
    Filed: April 3, 2017
    Publication date: September 28, 2017
    Inventors: Larry Cameron Anthony, Hongxian HE, Lixuan Lisa HUANG, Daniel P. O'KEEFE, Arthur Leo KRUCKBERG, Yougen LI, Lori Ann MAGGIO-HALL, Jessica MCELVAIN, Mark J. NELSON, Ranjan PATNAIK, Steven Cary ROTHMAN
  • Publication number: 20160273012
    Abstract: Reaction solutions are disclosed herein comprising water, sucrose and a glucosyltransferase enzyme that synthesizes poly alpha-1,3-glucan. The glucosyltransferase enzyme can synthesize insoluble glucan polymer having at least 50% alpha-1,3 glycosidic linkages and a number average degree of polymerization of at least 100. Further disclosed are methods of using such glucosyltransferase enzymes to produce insoluble poly alpha-1,3-glucan.
    Type: Application
    Filed: March 25, 2016
    Publication date: September 22, 2016
    Inventors: MARK S. PAYNE, Yefim Brun, Hongxian He, Thomas Scholz
  • Patent number: 9422581
    Abstract: Provided herein are recombinant yeast host cells and methods for their use for production of isobutanol. Yeast host cells provided comprise an isobutanol biosynthetic pathway and at least one of reduced or eliminated aldehyde dehydrogenase activity, reduced or eliminated acetolactate reductase activity; or a heterologous polynucleotide encoding a polypeptide having ketol-acid reductoisomerase activity.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: August 23, 2016
    Assignee: Butamax Advanced Biofuels LLC
    Inventors: Larry Cameron Anthony, Hongxian He, Lixuan Lisa Huang, Daniel P. Okeefe, Arthur Leo Kruckeberg, Yougen Li, Lori Ann Maggio-Hall, Jessica McElvain, Mark J. Nelson, Ranjan Patnaik, Steven Cary Rothman
  • Patent number: 9422582
    Abstract: Provided herein are recombinant yeast host cells and methods for their use for production of isobutanol. Yeast host cells provided comprise an isobutanol biosynthetic pathway and at least one of reduced or eliminated aldehyde dehydrogenase activity, reduced or eliminated acetolactate reductase activity; or a heterologous polynucleotide encoding a polypeptide having ketol-acid reductoisomerase activity.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: August 23, 2016
    Assignee: Butamax Advanced Biofuels LLC
    Inventors: Larry Cameron Anthony, Hongxian He, Lixuan Lisa Huang, Daniel P. Okeefe, Arthur Leo Kruckeberg, Yougen Li, Lori Ann Maggio-Hall, Jessica McElvain, Mark J. Nelson, Ranjan Patnaik, Steven Cary Rothman
  • Patent number: 9296997
    Abstract: Reaction solutions are disclosed herein comprising water, sucrose and a glucosyltransferase enzyme that synthesizes poly alpha-1,3-glucan. The glucosyltransferase enzyme can synthesize insoluble glucan polymer having at least 50% alpha-1,3 glycosidic linkages and a number average degree of polymerization of at least 100. Further disclosed are methods of using such glucosyltransferase enzymes to produce insoluble poly alpha-1,3-glucan.
    Type: Grant
    Filed: September 19, 2014
    Date of Patent: March 29, 2016
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Mark S Payne, Yefim Brun, Hongxian He, Thomas Scholz
  • Patent number: 9296996
    Abstract: Reaction solutions are disclosed herein comprising water, sucrose and a glucosyltransferase enzyme that synthesizes poly alpha-1,3-glucan. The glucosyltransferase enzyme can synthesize insoluble glucan polymer having at least 50% alpha-1,3 glycosidic linkages and a number average degree of polymerization of at least 100. Further disclosed are methods of using such glucosyltransferase enzymes to produce insoluble poly alpha-1,3-glucan.
    Type: Grant
    Filed: September 19, 2014
    Date of Patent: March 29, 2016
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Mark S Payne, Yefim Brun, Hongxian He, Thomas Scholz