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: 20210095266
    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: Application
    Filed: April 24, 2019
    Publication date: April 1, 2021
    Inventors: Katie Kline, Adrienne Huston Davenport, Xuqiu Tan, Oliver Spangenberg, Claudia Esper, Amy Migliori
  • Publication number: 20200318089
    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: October 17, 2018
    Publication date: October 8, 2020
    Inventors: Hugo URBINA, Tong LI, Jared DENNIS, Xuqiu TAN, Adrienne HUSTON DAVENPORT, Jochen KUTSCHER, Kristine W. CHANG
  • Publication number: 20200248154
    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: Application
    Filed: December 13, 2019
    Publication date: August 6, 2020
    Inventors: Xuqiu TAN, Arne I. SOLBAK, Jr.
  • Patent number: 10619142
    Abstract: The present disclosure provides for a polynucleotide sequences encoding a xylanase. More specifically, the present disclosure provides for polynucleotide sequences with codon mutations encoding a xylanase.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: April 14, 2020
    Assignee: BASF Enzymes LLC
    Inventor: Xuqiu Tan
  • Patent number: 10550371
    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: January 24, 2018
    Date of Patent: February 4, 2020
    Assignee: BASF Enzymes LLC
    Inventors: Xuqiu Tan, Arne I. Solbak, Jr.
  • Publication number: 20190249162
    Abstract: The present disclosure provides for a polynucleotide sequences encoding a xylanase. More specifically, the present disclosure provides for polynucleotide sequences with codon mutations encoding a xylanase.
    Type: Application
    Filed: October 30, 2018
    Publication date: August 15, 2019
    Inventor: Xuqiu Tan
  • Publication number: 20190053501
    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: Application
    Filed: February 15, 2017
    Publication date: February 21, 2019
    Inventors: Cristina POP, Adrienne HUSTON DAVENPORT, Michael LISZKA, Xuqiu TAN, Andreas FUNKE, Jochen KUTSCHER, Michael SEITTER, Stefan HAEFNER
  • Publication number: 20190002857
    Abstract: Polynucleotide sequences are provided encoding a thermostable cellulase and directing its increased expression are provided, and the use of the thermostable cellulase in hydraulic fracturing methods and the treatment of flowback fluids.
    Type: Application
    Filed: July 6, 2018
    Publication date: January 3, 2019
    Inventors: Xuqiu Tan, Kenneth E. Barrett, Richard S. Lee
  • Patent number: 10131895
    Abstract: The present disclosure provides for a polynucleotide sequences encoding a xylanase. More specifically, the present disclosure provides for polynucleotide sequences with codon mutations encoding a xylanase.
    Type: Grant
    Filed: March 10, 2014
    Date of Patent: November 20, 2018
    Assignee: BASF Enzymes LLC
    Inventor: Xuqiu Tan
  • Publication number: 20180312744
    Abstract: Polynucleotide sequences encoding a thermostable cellulase and directing its increased expression are provided, and hydraulic fracturing compositions comprising such thermostable cellulase.
    Type: Application
    Filed: December 7, 2017
    Publication date: November 1, 2018
    Inventors: Xuqiu Tan, Kenneth E. Barrett, Adrienne Huston Davenport, Lawrence E. Whipple, Hugo D. Urbina, Bin Zhang, Mark A. Wall
  • Publication number: 20180258410
    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: Application
    Filed: January 24, 2018
    Publication date: September 13, 2018
    Inventors: Xuqiu Tan, Arne I. Solbak, JR.
  • Patent number: 10017754
    Abstract: Polynucleotide sequences are provided encoding a thermostable cellulase and directing its increased expression are provided, and the use of the thermostable cellulase in hydraulic fracturing methods and the treatment of flowback fluids.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: July 10, 2018
    Assignee: BASF Enzymes LLC
    Inventors: Xuqiu Tan, Kenneth E. Barrett, Richard S. Lee
  • Patent number: 9879238
    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: March 10, 2014
    Date of Patent: January 30, 2018
    Assignee: BASF Enzymes LLC
    Inventors: Xuqiu Tan, Arne I. Solbak, Jr.
  • Patent number: 9476078
    Abstract: The present invention provides a novel method of producing a plurality of modified polynucleotides having different combinations of various mutations at multiple sites by a tailored multi-site combinatorial assembly, comprising adding at least two or at least three primers to a double stranded template polynucleotide in a single reaction mixture, wherein the primers are not overlapping, and wherein each of the primers comprise at least one mutation different from the other primers, wherein at least one primer is a forward primer that can anneal to a minus strand of the template and at least one primer is a reverse primer that can anneal to a plus strand of the template, and subjecting the reaction mixture to a polymerase extension reaction to yield a plurality of extended modified polynucleotides from the at least three primers. The method can be performed without employing a ligation step prior to transforming the extended modified polynucleotides into a cell.
    Type: Grant
    Filed: July 31, 2008
    Date of Patent: October 25, 2016
    Assignee: BASF Enzymes LLC
    Inventor: Xuqiu Tan
  • Publication number: 20160083700
    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: Application
    Filed: March 10, 2014
    Publication date: March 24, 2016
    Inventors: Xuqiu TAN, Arne I. SOLBAK, JR.
  • Publication number: 20160002616
    Abstract: The present disclosure provides for a polynucleotide sequences encoding a xylanase. More specifically, the present disclosure provides for polynucleotide sequences with codon mutations encoding a xylanase.
    Type: Application
    Filed: March 10, 2014
    Publication date: January 7, 2016
    Inventor: Xuqiu TAN
  • Publication number: 20150087029
    Abstract: Polynucleotide sequences encoding a thermostable cellulase and directing its increased expression are provided, and hydraulic fracturing compositions comprising such thermostable cellulase.
    Type: Application
    Filed: March 12, 2013
    Publication date: March 26, 2015
    Inventors: Xuqiu Tan, Kenneth E. Barrett, Adrienne Huston Davenport, Lawrence E. Whipple, Hugo D. Urbina, Bin Zhang, Mark A. Wall
  • Publication number: 20150072397
    Abstract: Polynucleotide sequences are provided encoding a thermostable cellulase and directing its increased expression are provided, and the use of the thermostable cellulase in hydraulic fracturing methods and the treatment of flowback fluids.
    Type: Application
    Filed: March 12, 2013
    Publication date: March 12, 2015
    Inventors: Xuqiu Tan, Kenneth E. Barrett, Richard S. Lee
  • Publication number: 20120100581
    Abstract: The invention provides novel polypeptides having phospholipase activity, including, e.g., phospholipase A, B, C and D activity, patatin activity, phosphatidic acid phosphatases (PAP)) and/or lipid acyl hydrolase (LAH) activity, nucleic acids encoding them and antibodies that bind to them. Industrial methods, e.g., oil degumming, and products comprising use of these phospholipases are also provided.
    Type: Application
    Filed: April 20, 2011
    Publication date: April 26, 2012
    Applicant: VERENIUM CORPORATION
    Inventors: SVETLANA GRAMATIKOVA, GEOFF HAZLEWOOD, DAVID LAM, NELSON R. BARTON, BLAKE G. STURGIS, DAN E. ROBERTSON, JINCAI LI, JOEL A. KREPS, RODERICK JAMES FIELDING, ROBERT C. BROWN, AMIT VASAVADA, XUQIU TAN, ADRIAN BADILLO, WILHELMUS P. VAN HOEK, GISELLE JANSSEN, CHARLES ISAAC, MARK J. BURK
  • Patent number: 7977080
    Abstract: The invention provides novel polypeptides having phospholipase activity, including, e.g., phospholipase A, B, C and D activity, patatin activity, phosphatidic acid phosphatases (PAP)) and/or lipid acyl hydrolase (LAH) activity, nucleic acids encoding them and antibodies that bind to them. Industrial methods, e.g., oil degumming, and products comprising use of these phospholipases are also provided.
    Type: Grant
    Filed: March 8, 2005
    Date of Patent: July 12, 2011
    Assignee: Verenium Corporation
    Inventors: Svetlana Gramatikova, Geoff Hazlewood, David Lam, Nelson R. Barton, Blake G. Sturgis, Dan E. Robertson, Jincai Li, Joel A. Kreps, Roderick James Fielding, Robert C. Brown, Amit Vasavada, Xuqiu Tan, Adrian Badillo, Wilhelmus P. Van Hoek, Giselle Janssen, Charles Isaac, Mark J. Burk