Patents by Inventor Xuqiu Tan

Xuqiu Tan 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: 20240084084
    Abstract: A promoter operably linked to a gene encoding a protein is disclosed. The promoter drives expression of the protein in a yeast cell in the absence of methanol. Also disclosed are vectors, host cells and expression systems that include the promoter, as well as methods of using the promoter to express proteins in yeast.
    Type: Application
    Filed: November 17, 2023
    Publication date: March 14, 2024
    Applicant: BASF SE
    Inventors: Xuqiu Tan, Ruorong Cai, Jingping Zhong, Melissa Ann Scranton, Michael Speer
  • Patent number: 11866714
    Abstract: A promoter operably linked to a gene encoding a protein is disclosed. The promoter drives expression of the protein in a yeast cell in the absence of methanol. Also disclosed are vectors, host cells and expression systems that include the promoter, as well as methods of using the promoter to express proteins in yeast.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: January 9, 2024
    Assignee: BASF SE
    Inventors: Xuqiu Tan, Ruorong Cai, Jingping Zhong, Melissa Ann Scranton, Michael Speer
  • Patent number: 11732250
    Abstract: Engineered variant polypeptides having lipase enzyme activity, compositions comprising the enzymes, and methods of making and using the enzymes. The genetically engineered lipase enzymes are useful in many different applications such as laundry detergents, dish washing detergents, and cleaning products for homes, industry, vehicle care, baking, animal feed, pulp and paper processing, starch processing, biodiesel and ethanol production.
    Type: Grant
    Filed: April 24, 2019
    Date of Patent: August 22, 2023
    Assignee: BASF SE
    Inventors: Katie Kline, Adrienne Huston Davenport, Xuqiu Tan, Oliver Spangenberg, Claudia Esper, Amy Migliori
  • Publication number: 20230212544
    Abstract: Variant polypeptides having beta-amylase activity and methods of making and using the enzymes in baking, detergents, personal care products, in the processing of textiles, in pulp and paper processing, in the production of ethanol, lignocellulosic ethanol, or syrups; as viscosity breakers in oilfield and mining industries.
    Type: Application
    Filed: December 21, 2022
    Publication date: July 6, 2023
    Inventors: Hugo Urbina, Tong Li, Jared Dennis, Xuqiu Tan, Adrienne Huston Davenport, Jochen Kutscher, Kristine W. Chang
  • Patent number: 11634698
    Abstract: Disclosed herein are polypeptides having nuclease activity. Some of the polypeptides having nuclease activity were generated by an improved gene site mutagenesis (“GSSM”) method or the tailored multi-site combinatorial assembly (“TMCA”) method. Also disclosed are compositions and kits comprising the polypeptides having nuclease activity, and methods for making and using these polypeptides, compositions and kits.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: April 25, 2023
    Assignee: BASF SE
    Inventors: Xuqiu Tan, Kenneth Barrett, Jared Dennis, Dongmei Ren, Corey Dodge, Bin Zhang
  • Patent number: 11542487
    Abstract: Variant polypeptides having beta-amylase activity and methods of making and using the enzymes in baking, detergents, personal care products, in the processing of textiles, in pulp and paper processing, in the production of ethanol, lignocellulosic ethanol, or syrups; as viscosity breakers in oilfield and mining industries.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: January 3, 2023
    Assignee: BASF SE
    Inventors: Hugo Urbina, Tong Li, Jared Dennis, Xuqiu Tan, Adrienne Huston Davenport, Jochen Kutscher, Kristine W. Chang
  • Publication number: 20220251540
    Abstract: Disclosed herein is an improved Gene Site Saturation Mutagenesis (GSSM) method for producing a plurality of modified polynucleotides and/or polypeptides, creating specific changes to a gene, and reassembling mutations or changes at one or more sites.
    Type: Application
    Filed: December 18, 2018
    Publication date: August 11, 2022
    Inventors: Jared DENNIS, Xuqiu TAN, Robin CAI
  • Publication number: 20220220463
    Abstract: The present invention relates to variants of a beta-amylase which have an increased % residual exoamylase activity compared to the parent beta-amylase after heat treatment. The present invention also relates to methods of making the variant beta-amylase and the use of the variant beta-amylase in baking, detergents, personal care products, in the processing of textiles, in pulp and paper processing, in the production of ethanol, lignocellulosic ethanol or syrups and as viscosity breaker in oilfield and mining industries.
    Type: Application
    Filed: April 21, 2020
    Publication date: July 14, 2022
    Inventors: Hugo URBINA, Kristine W. CHANG, Tuan TRAN, Gina Ning Lee LOWE, Adrienne HUSTON DAVENPORT, Xuqiu TAN, Tong LI, Stefan JENEWEIN, Stefan SEEMAYER, Jochen KUTSCHER
  • Publication number: 20220186200
    Abstract: Variant polypeptides having G4-amylase activity and methods of making and using the enzymes in baking, detergents, personal care products, in the processing of textiles, in pulp and paper processing, in the production of ethanol, lignocellulosic ethanol, or syrups; or as viscosity breakers in oilfield and mining industries.
    Type: Application
    Filed: March 10, 2020
    Publication date: June 16, 2022
    Inventors: Hugo Urbina, Kristine W. Chang, Tong Li, Xuqiu Tan, Jared Dennis, Jochen Kutscher, Adrienne Huston Davenport
  • Publication number: 20220170001
    Abstract: Genetically engineered enzymes having amylase enzyme activity, compositions comprising the enzymes, and methods of making and using the enzymes. Fragments of parent amylase enzymes activity and methods of using the fragments for making genetically engineered enzymes having amylase activity. The genetically engineered amylase enzymes are useful in many different applications such as laundry detergents, dish washing detergents, and cleaning products for homes, industry, vehicle care, baking, animal feed, pulp and paper processing, starch processing, brewing, and ethanol production.
    Type: Application
    Filed: March 24, 2020
    Publication date: June 2, 2022
    Inventors: Asfia Qureshi, Zachary David Miles, Xuqiu Tan, Tong Li, Jared Dennis, Stefan Jenewein, Priya Anand, Jesper Nielsen
  • Publication number: 20220162576
    Abstract: Genetically engineered enzymes having amylase enzyme activity, compositions comprising the enzymes, and methods of making and using the enzymes. Fragments of parent amylase enzymes activity and methods of using the fragments for making genetically engineered enzymes having amylase activity. The genetically engineered amylase enzymes are useful in many different applications such as laundry detergents, dish washing detergents, and cleaning products for homes, industry, vehicle care, baking, animal feed, pulp and paper processing, starch processing, brewing, and ethanol production.
    Type: Application
    Filed: March 24, 2020
    Publication date: May 26, 2022
    Inventors: Stefan Jenewein, Zachary David Miles, Asfia Qureshi, Jared Dennis, Tong Li, Xuqiu Tan, Priya Anand, Jesper Nielsen
  • Publication number: 20220002738
    Abstract: The present invention relates to a recombinant yeast cell for high yield protein expression. The invention further relates to cell culture involving the recombinant yeast cell, a method for preparing protein involving culturing the recombinant yeast cell and a use of the recombinant yeast cell.
    Type: Application
    Filed: November 18, 2019
    Publication date: January 6, 2022
    Inventors: Jingping Zhong, Xuqiu Tan, Melissa Ann Scranton, Daphne Li
  • Publication number: 20210388037
    Abstract: The present invention relates to a leader peptide which promotes the secretion of recombinant proteins and a nucleic acid sequence encoding the leader peptide as well as expression cassettes, vectors and host cells comprising this leader sequence. Also disclosed is a method for producing a protein using this leader peptide.
    Type: Application
    Filed: November 18, 2019
    Publication date: December 16, 2021
    Inventors: Jingping Zhong, Xuqiu Tan, Melissa Ann Scranton
  • Publication number: 20210254082
    Abstract: A promoter operably linked to a gene encoding a protein is disclosed. The promoter drives expression of the protein in a yeast cell in the absence of methanol. Also disclosed are vectors, host cells and expression systems that include the promoter, as well as methods of using the promoter to express proteins in yeast.
    Type: Application
    Filed: June 3, 2019
    Publication date: August 19, 2021
    Inventors: Xuqiu TAN, Ruorong CAI, Jingping ZHONG, Melissa Ann SCRANTON, Michael SPEER
  • Publication number: 20210230708
    Abstract: Disclosed herein are methods of identifying promoters that drive protein expression independently of methanol and are useful in driving protein expression in yeast.
    Type: Application
    Filed: June 3, 2019
    Publication date: July 29, 2021
    Inventors: Xuqiu TAN, Corey DODGE, Kevin Li WONG, Aileen Aboy MILAN, Samantha ORCHARD, Ruorong CAI
  • Publication number: 20210198643
    Abstract: The present invention relates to variants of an alpha-amylase which have an increased exoamylase activity compared to the parent alpha-amylase. The present invention also relates to methods of making the variant alpha-amylase and the use of the variant alpha-amylase in baking, detergents, personal care products, in the processing of textiles, in pulp and paper processing, in the production of ethanol, lignocellulosic ethanol or syrups and as viscosity breaker in oilfield and mining industries.
    Type: Application
    Filed: May 29, 2019
    Publication date: July 1, 2021
    Inventors: Hugo URBINA, Asfia QURESHI, Adrienne HUSTON DAVENPORT, Xuqiu TAN, Jochen KUTSCHER, Andreas FUNKE, Michael SEITTER, Stefan HAEFNER, Anh-Huy Phan LE
  • Publication number: 20210139871
    Abstract: Disclosed herein are polypeptides having nuclease activity. Some of the polypeptides having nuclease activity were generated by an improved gene site mutagenesis (“GSSM”) method or the tailored multi-site combinatorial assembly (“TMCA”) method. Also disclosed are compositions and kits comprising the polypeptides having nuclease activity, and methods for making and using these polypeptides, compositions and kits.
    Type: Application
    Filed: December 10, 2018
    Publication date: May 13, 2021
    Inventors: Xuqiu TAN, Kenneth BARRETT, Jared DENNIS, Dongmei REN, Corey DODGE, Bin ZHANG
  • Patent number: 10993446
    Abstract: Lipase enzymes and methods of using the lipases in a baking for improving the volume, stability, tolerance of a baked product and/or reducing and reducing or eliminating the use of DATEM.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: May 4, 2021
    Assignee: BASF SE
    Inventors: Cristina Pop, Adrienne Huston Davenport, Michael Liszka, Xuqiu Tan, Andreas Funke, Jochen Kutscher, Michael Seitter, Stefan Haefner
  • Publication number: 20210115422
    Abstract: Engineered variant polypeptides having amylase enzyme activity, compositions comprising the enzymes, and methods of making and using the enzymes. The genetically engineered amylase enzymes are useful in many different applications such as laundry detergents, dish washing detergents, and cleaning products for homes, industry, vehicle care, baking, animal feed, pulp and paper processing, starch processing, and ethanol production.
    Type: Application
    Filed: April 24, 2019
    Publication date: April 22, 2021
    Inventors: Asfia Qureshi, Adrienne Huston Davenport, Xuqiu Tan, Oliver Spangenberg, Amanda Rae Logue, Janina Berndt, Tong Li, Stefan Seemayer, Hans Wolfgang Hoeffken, Jingping Zhong
  • Patent number: 10982199
    Abstract: Polypeptides having phytase activity and polynucleotide sequences encoding the phytases are provided. The gene expresses the phytase at a level of at least 7 g/L to 40 g/L. The phytase have higher specific activity, retain activity at low pH, and retain activity at high temperature. The phytase can be used in a variety of compositions including food, feed, pharmaceuticals, and cleaning.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: April 20, 2021
    Assignee: BASF Enzymes LLC
    Inventors: Xuqiu Tan, Arne I. Solbak, Jr.