Patents by Inventor Kripa Rao

Kripa Rao 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: 20120193046
    Abstract: A method for lignocellulose conversion to sugar with improvements in yield and rate of sugar production has been developed by using ionic liquid pretreatment. This new pretreatment strategy substantially improves the efficiency (in terms of yield and reaction rates) of saccharification of lignocellulosic biomass. Cellulose and hemicellulose, when hydrolyzed into their sugars, can be converted into ethanol fuel through well established fermentation technologies. These sugars also form the feedstocks for production of variety of chemicals and polymers. The complex structure of biomass requires proper pretreatment to enable efficient saccharification of cellulose and hemicellulose components to their constituent sugars. Current pretreatment approaches suffer from slow reaction rates of cellulose hydrolysis (by using the enzyme cellulase) and low yields.
    Type: Application
    Filed: September 1, 2011
    Publication date: August 2, 2012
    Applicants: Suganit Systems, Inc., The University of Toledo
    Inventors: Sasidhar VARANASI, Constance Ann Schall, Anantharam Prasad Dadi, Jared Anderson, Kripa Rao, Praveen Paripati, Guneet Kumar
  • Publication number: 20120178132
    Abstract: The present invention relates to variant endoglucanases and particularly endoglucanases having improved properties over wild-type endoglucanase.
    Type: Application
    Filed: December 12, 2011
    Publication date: July 12, 2012
    Applicant: Codexis, Inc.
    Inventors: Jie Yang, Andrew Shaw, Ish Kumar Dhawan, Onorato Campopiano, Kripa Rao
  • Patent number: 8206960
    Abstract: The present invention relates to variant endoglucanases and particularly endoglucanases having improved properties over wild-type endoglucanase.
    Type: Grant
    Filed: December 12, 2011
    Date of Patent: June 26, 2012
    Assignee: Codexis, Inc.
    Inventors: Jie Yang, Andrew Shaw, Ish Kumar Dhawan, Onorato Campopiano, Kripa Rao
  • Publication number: 20120083019
    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: Application
    Filed: August 22, 2011
    Publication date: April 5, 2012
    Applicant: Codexis, Inc.
    Inventors: Dipnath Baidyaroy, Louis Clark, Onorato Campopiano, Kripa Rao, Lorand Szabo, Janos Torok
  • Patent number: 8088608
    Abstract: The present invention relates to variant endoglucanases and particularly endoglucanases having improved properties over wild-type endoglucanase.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: January 3, 2012
    Assignee: Codexis, Inc.
    Inventors: Jie Yang, Andrew Shaw, Ish Kumar Dhawan, Onorato Campopiano, Kripa Rao
  • Patent number: 8030030
    Abstract: A method for lignocellulose conversion to sugar with improvements in yield and rate of sugar production has been developed by using ionic liquid pretreatment. This new pretreatment strategy substantially improves the efficiency (in terms of yield and reaction rates) of saccharification of lignocellulosic biomass. Cellulose and hemicellulose, when hydrolyzed into their sugars, can be converted into ethanol fuel through well established fermentation technologies. These sugars also form the feedstocks for production of variety of chemicals and polymers. The complex structure of biomass requires proper pretreatment to enable efficient saccharification of cellulose and hemicellulose components to their constituent sugars. Current pretreatment approaches suffer from slow reaction rates of cellulose hydrolysis (by using the enzyme cellulase) and low yields.
    Type: Grant
    Filed: March 13, 2008
    Date of Patent: October 4, 2011
    Assignees: The University of Toledo, Suganit Systems, Inc.
    Inventors: Sasidhar Varanasi, Constance Ann Schall, Anantharam Prasad Dadi, Jared Anderson, Kripa Rao, Guneet Kumar, Praveen Paripati
  • Publication number: 20100285552
    Abstract: Methods and systems for the isomerization and/or fermentation of xylose and hexose sugars are disclosed.
    Type: Application
    Filed: January 2, 2009
    Publication date: November 11, 2010
    Applicant: UNIVERSITY OF TOLEDO
    Inventors: Sasidhar Varanasi, Kripa Rao, Patricia Ann Relue, Dawei Yuan
  • Publication number: 20100267089
    Abstract: The present invention relates to variant endoglucanases and particularly endoglucanases having improved properties over wild-type endoglucanase.
    Type: Application
    Filed: March 31, 2010
    Publication date: October 21, 2010
    Applicant: CODEXIS, INC.
    Inventors: JIE YANG, ANDREW SHAW, ISH KUMAR DHAWAN, ONORATO CAMPOPIANO, KRIPA RAO
  • Publication number: 20080227162
    Abstract: A method for lignocellulose conversion to sugar with improvements in yield and rate of sugar production has been developed by using ionic liquid pretreatment. This new pretreatment strategy substantially improves the efficiency (in terms of yield and reaction rates) of saccharification of lignocellulosic biomass. Cellulose and hemicellulose, when hydrolyzed into their sugars, can be converted into ethanol fuel through well established fermentation technologies. These sugars also form the feedstocks for production of variety of chemicals and polymers. The complex structure of biomass requires proper pretreatment to enable efficient saccharification of cellulose and hemicellulose components to their constituent sugars. Current pretreatment approaches suffer from slow reaction rates of cellulose hydrolysis (by using the enzyme cellulase) and low yields.
    Type: Application
    Filed: March 13, 2008
    Publication date: September 18, 2008
    Inventors: Sasidhar Varanasi, Constance Ann Schall, Anantharam Prasad Dadi, Jared Anderson, Kripa Rao