Patents by Inventor Dipnath Baidyaroy

Dipnath Baidyaroy 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: 20170159035
    Abstract: The present invention provides various GH61 protein variants comprising various amino acid substitutions. The GH61 protein variants have an improved ability to synergize with cellulase enzymes, thereby increasing the yield of fermentable sugars obtained by saccharification of biomass. In some embodiments, sugars obtained from saccharification are fermented to produce numerous end-products, including but not limited to alcohol.
    Type: Application
    Filed: February 16, 2017
    Publication date: June 8, 2017
    Inventors: Jie Yang, Xiyun Zhang, Jungjoo Yoon, Kripa K. Rao, John H. Grate, David M. Elgart, Dipnath Baidyaroy
  • Publication number: 20170067033
    Abstract: The present invention provides improved fungal strains. In some embodiments, the improved fungal strains find use in hydrolyzing cellulosic material to glucose.
    Type: Application
    Filed: November 21, 2016
    Publication date: March 9, 2017
    Inventors: Dipnath Baidyaroy, Ish K. Dhawan
  • Patent number: 9528098
    Abstract: The present invention provides improved fungal strains. In some embodiments, the improved fungal strains find use in hydrolyzing cellulosic material to glucose.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: December 27, 2016
    Assignee: Codexis, Inc.
    Inventors: Dipnath Baidyaroy, Ish K. Dhawan
  • Patent number: 9493802
    Abstract: The invention provides recombinant GH61 proteins obtained from Myceliophtora thermophila, and nucleic acids that encode such proteins. The invention also provides protein fractions isolated from M. thermophila supernatant that have GH61 protein activity. These preparations can be used to increase yield of products from reactions in which a cellulose-containing substrate undergoes saccharification by one or more cellulase enzymes, such as endoglucanase, ?-glucosidase, or cellobiohydrolase. Combinations of GH61 protein and cellulases can be used to break down cellulosic biomass into fermentable sugars in the production of ethanol.
    Type: Grant
    Filed: August 22, 2011
    Date of Patent: November 15, 2016
    Assignee: Codexis, Inc.
    Inventors: Jie Yang, Louis Clark, Onorato Campopiano, Kripa Rao, Lorand Szabo, Janos Torok, Dipnath Baidyaroy
  • Publication number: 20160186222
    Abstract: The present invention provides fungal xylanase and/or xylosidase enzymes suitable for use in saccharification reactions. The present invention provides xylanase and xylosidase enzymes suitable for use in saccharification reactions. The present application further provides genetically modified fungal organisms that produce xylanase(s) and/or xylosidase(s), as well as enzyme mixtures exhibiting enhanced hydrolysis of cellulosic material to fermentable sugars, enzyme mixtures produced by the genetically modified fungal organisms, and methods for producing fermentable sugars from cellulose using such enzyme mixtures. In some embodiments, the xylanase and xylosidase enzyme(s) are M. thermophila enzymes.
    Type: Application
    Filed: March 16, 2016
    Publication date: June 30, 2016
    Inventors: Nicholas John Agard, David Elgart, Jie Yang, Goutami Banerjee, Jeanne Bonomo Benoit, Dipnath Baidyaroy
  • Patent number: 9260705
    Abstract: The present invention relates to cellobiohydrolase variants having improved thermostability in comparison to wild-type CBH2a.
    Type: Grant
    Filed: December 31, 2014
    Date of Patent: February 16, 2016
    Assignee: Codexis, Inc.
    Inventors: Dipnath Baidyaroy, Louis Clark, David Elgart, Rama Voladri, Xiyun Zhang
  • Publication number: 20150361407
    Abstract: The present invention provides compositions and methods for the production of enzymes. Interest has arisen in fermentation of carbohydrate-rich biomass to provide alternatives to petrochemical sources for fuels and organic chemical precursors. “First generation” bioethanol production from carbohydrate sources (e.g., sugar cane, corn, wheat, etc.) have proven to be marginally economically viable on a production scale.
    Type: Application
    Filed: January 9, 2014
    Publication date: December 17, 2015
    Inventors: Lorand Szabo, Jeno Szilagyi, Kata Zsuzsanna Hetenyi, Dipnath Baidyaroy
  • Publication number: 20150337279
    Abstract: The invention relates to Myceliophthora thermophila biomass degradation polypeptides and Myceliophthora thermophila polypeptides that increase protein productivity, nucleic acids encoding such polypeptides, and methods of producing the polypeptides. The invention further relates to methods for degrading a cellulosic biomass using a biomass degradation polypeptide and methods of engineering a cell or methods of increasing protein production using a polypeptide of the invention.
    Type: Application
    Filed: November 19, 2013
    Publication date: November 26, 2015
    Inventors: Xiyun Zhang, Dipnath Baidyaroy
  • Patent number: 9175324
    Abstract: The invention relates to expression of a recombinant C1 ?-glucosidase. The invention also provides methods for producing a fermentable sugar from cellobiose by contacting cellobiose with a recombinant host cell comprising a polynucleotide sequence encoding C1 ?-glucosidase, operably linked to heterologous promoter, under conditions in which ?-glucosidase is expressed and secreted by the cell and the cellobiose is enzymatically converted by said ?-glucosidase to glucose. Methods of the invention may be used for conversion of a biomass substrate to a fermentable sugar, and ultimately to ethanol or other biofuel.
    Type: Grant
    Filed: November 3, 2014
    Date of Patent: November 3, 2015
    Assignee: Codexis, Inc.
    Inventors: Louis A. Clark, Dipnath Baidyaroy, Lorand Szabo
  • Patent number: 9150843
    Abstract: The invention relates to recombinantly produced ?-glucosidase variants with enhanced thermoactivity compared to naturally occurring proteins. The invention also provides methods for producing a variant ?-glucosidase polypeptide with improved thermoactivity by identifying performance sensitive positions in a target ?-glucosidase polypeptide and substituting the residue at that position with a thermoactivity enhancing residue.
    Type: Grant
    Filed: November 13, 2014
    Date of Patent: October 6, 2015
    Assignee: Codexis, Inc.
    Inventors: Xiyun Zhang, Jie Yang, Dipnath Baidyaroy, Sally R. Postlethwaite, Attila Andor, Louis A. Clark, Lisa Marie Newman
  • Publication number: 20150252342
    Abstract: The present invention provides improved fungal strains. In some embodiments, the improved fungal strains find use in hydrolyzing cellulosic material to glucose.
    Type: Application
    Filed: May 20, 2015
    Publication date: September 10, 2015
    Inventors: Dipnath Baidyaroy, Ish K. Dhawan
  • Publication number: 20150197736
    Abstract: The present invention relates to cellobiohydrolase variants having improved thermostability in comparison to wild-type CBH2a.
    Type: Application
    Filed: December 31, 2014
    Publication date: July 16, 2015
    Inventors: DIPNATH BAIDYAROY, LOUIS CLARK, DAVID ELGART, RAMA VOLADRI, XIYUN ZHANG
  • Patent number: 9068235
    Abstract: The present invention provides improved fungal strains. In some embodiments, the improved fungal strains find use in hydrolyzing cellulosic material to glucose.
    Type: Grant
    Filed: November 1, 2011
    Date of Patent: June 30, 2015
    Assignee: Codexis, Inc.
    Inventors: Dipnath Baidyaroy, Ish Kumar Dhawan
  • Publication number: 20150125903
    Abstract: The present invention provides fungal xylanase and/or xylosidase enzymes suitable for use in saccharification reactions. The present invention provides xylanase and xylosidase enzymes suitable for use in saccharification reactions. The present application further provides genetically modified fungal organisms that produce xylanase(s) and/or xylosidase(s), as well as enzyme mixtures exhibiting enhanced hydrolysis of cellulosic material to fermentable sugars, enzyme mixtures produced by the genetically modified fungal organisms, and methods for producing fermentable sugars from cellulose using such enzyme mixtures. In some embodiments, the xylanase and xylosidase enzyme(s) are M. thermophila enzymes.
    Type: Application
    Filed: January 14, 2015
    Publication date: May 7, 2015
    Inventors: Nicholas John Agard, David Elgart, Jie Yang, Goutami Banerjee, Jeanne Bonomo Benoit, Dipnath Baidyaroy
  • Patent number: 8993277
    Abstract: The present invention provides compositions and methods for the expression of recombinant ?-glucosidase variants, as well as their use in the production of fermentable sugars from cellulosic biomass.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: March 31, 2015
    Assignee: Codexis, Inc.
    Inventors: Dipnath Baidyaroy, Louis Clark, Lisa M. Newman
  • Publication number: 20150064766
    Abstract: The invention relates to recombinantly produced ?-glucosidase variants with enhanced thermoactivity compared to naturally occurring proteins. The invention also provides methods for producing a variant ?-glucosidase polypeptide with improved thermoactivity by identifying performance sensitive positions in a target ?-glucosidase polypeptide and substituting the residue at that position with a thermoactivity enhancing residue.
    Type: Application
    Filed: November 13, 2014
    Publication date: March 5, 2015
    Inventors: Xiyun Zhang, Jie Yang, Dipnath Baidyaroy, Sally R. Postlethwaite, Attila Andor, Louis A. Clark, Lisa Marie Newman
  • Publication number: 20150050702
    Abstract: The invention relates to expression of a recombinant C1 ?-glucosidase. The invention also provides methods for producing a fermentable sugar from cellobiose by contacting cellobiose with a recombinant host cell comprising a polynucleotide sequence encoding C1 ?-glucosidase, operably linked to heterologous promoter, under conditions in which ?-glucosidase is expressed and secreted by the cell and the cellobiose is enzymatically converted by said ?-glucosidase to glucose. Methods of the invention may be used for conversion of a biomass substrate to a fermentable sugar, and ultimately to ethanol or other biofuel.
    Type: Application
    Filed: November 3, 2014
    Publication date: February 19, 2015
    Inventors: Louis A. Clark, Dipnath Baidyaroy, Lorand Szabo
  • Patent number: 8956845
    Abstract: The invention relates to recombinantly produced ?-glucosidase variants with enhanced thermoactivity compared to naturally occurring proteins. The invention also provides methods for producing a variant ?-glucosidase polypeptide with improved thermoactivity by identifying performance sensitive positions in a target ?-glucosidase polypeptide and substituting the residue at that position with a thermoactivity enhancing residue.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: February 17, 2015
    Assignee: Codexis, Inc.
    Inventors: Xiyun Zhang, Jie Yang, Dipnath Baidyaroy, Sally R. Postlethwaite, Attila Andor, Louis A. Clark, Lisa Marie Newman
  • Patent number: 8956844
    Abstract: The present invention provides fungal xylanase and/or xylosidase enzymes suitable for use in saccharification reactions. The present invention provides xylanase and xylosidase enzymes suitable for use in saccharification reactions. The present application further provides genetically modified fungal organisms that produce xylanase(s) and/or xylosidase(s), as well as enzyme mixtures exhibiting enhanced hydrolysis of cellulosic material to fermentable sugars, enzyme mixtures produced by the genetically modified fungal organisms, and methods for producing fermentable sugars from cellulose using such enzyme mixtures. In some embodiments, the xylanase and xylosidase enzyme(s) are M. thermophila enzymes.
    Type: Grant
    Filed: June 10, 2013
    Date of Patent: February 17, 2015
    Assignee: Codexis, Inc.
    Inventors: Nicholas John Agard, David Elgart, Jie Yang, Goutami Banerjee, Jeanne Bonomo Benoit, Dipnath Baidyaroy
  • Patent number: 8951758
    Abstract: The present invention provides various GH61 protein variants comprising various amino acid substitutions. The GH61 protein variants have an improved ability to synergize with cellulase enzymes, thereby increasing the yield of fermentable sugars obtained by saccharification of biomass. In some embodiments, sugars obtained from saccharification are fermented to produce numerous end-products, including but not limited to alcohol.
    Type: Grant
    Filed: August 22, 2012
    Date of Patent: February 10, 2015
    Assignee: Codexis, Inc.
    Inventors: Jie Yang, Xiyun Zhang, Jungjoo Yoon, Kripa Rao, John H. Grate, David Elgart, Dipnath Baidyaroy