Patents by Inventor Rolf A. Prade

Rolf A. Prade 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).

  • Patent number: 10266814
    Abstract: Compositions comprising glycosyl hydrolase enzymes are provided, as are methods for their use to depolymerize hemicellulose, cellulose, lignin and pectin in biomass in order to produce products such as simple sugars. The enzymes, isolated from Aspergillus nidulans and Phanerochaete chrysosporium, were characterized, and synergistic mixtures of the enzymes were produced and used to generate simple sugars from biomass without the need to pretreat the biomass before digestion. The enzyme blends generally comprise two or more enzymes, which may be from the same fungus or from two different fungi, and are used for efficient and cost effective complete degradation of lignocelluloses. Applications of this technology include biofuel production.
    Type: Grant
    Filed: June 2, 2015
    Date of Patent: April 23, 2019
    Assignee: The Board of Regents for Oklahoma State University
    Inventors: Andrew Mort, Anamika Ray, Sayali S. Saykhedkar, Rolf A. Prade
  • Publication number: 20170198270
    Abstract: Compositions comprising glycosyl hydrolase enzymes are provided, as are methods for their use to depolymerize hemicellulose, cellulose, lignin and pectin in biomass in order to produce products such as simple sugars. The enzymes, isolated from Aspergillus nidulans and Phanerochaete chrysosporium, were characterized, and synergistic mixtures of the enzymes were produced and used to generate simple sugars from biomass without the need to pretreat the biomass before digestion. The enzyme blends generally comprise two or more enzymes, which may be from the same fungus or from two different fungi, and are used for efficient and cost effective complete degradation of lignocelluloses. Applications of this technology include biofuel production.
    Type: Application
    Filed: June 2, 2015
    Publication date: July 13, 2017
    Applicant: THE BOARD OF REGENTS FOR OKLAHOMA STATE UNIVERSITY
    Inventors: ANDREW MORT, ANAMIKA RAY, SAYALI S. SAYKHEDKAR, ROLF A. PRADE
  • Publication number: 20150093791
    Abstract: Thermostable cellulase enzyme systems comprising at least one each of a thermostable endoglucanase, an exo-processive-endoglucanase, and a ?-glucosidase carry out the complete, coordinated hydrolysis of crystalline cellulose to monomeric glucose.
    Type: Application
    Filed: September 29, 2014
    Publication date: April 2, 2015
    Inventors: Rolf A. Prade, Hongliang Wang
  • Publication number: 20150004670
    Abstract: Methods of continuous production of a product of interest using a filamentous fungus are provided. The fungus is auxotrophic for a nutrient that is required for fungal growth, but not for fungal synthesis of the product of interest. Under growth limiting culture conditions, in which the nutrient is absent from the culture medium, the amount of fungus remains constant or nearly constant and nutrients are not used up for growth but instead are available for synthetic pathways which produce the product of interest.
    Type: Application
    Filed: June 27, 2014
    Publication date: January 1, 2015
    Inventors: MICHAEL MUELLER, MARK WILKINS, ROLF A. PRADE
  • Patent number: 8847031
    Abstract: Thermostable cellulase enzyme systems comprising at least one each of a thermostable endoglucanase, an exo-processive-endoglucanase, and a ?-glucosidase carry out the complete, coordinated hydrolysis of crystalline cellulose to monomeric glucose.
    Type: Grant
    Filed: July 9, 2009
    Date of Patent: September 30, 2014
    Assignee: The Board of Regents for Oklahoma State University
    Inventors: Rolf A. Prade, Hongliang Wang
  • Publication number: 20120040410
    Abstract: Hemicellulase (xylanase) enzymes possessing endo-xylanase, laminarase, mannanase, arabinase and arabinofuranosidase activity are useful to degrade hemicellulose and other substrates to their constituent sugars.
    Type: Application
    Filed: January 19, 2010
    Publication date: February 16, 2012
    Applicant: THE BOARD OF REGENTS FOR OKLAHOMA STATE UNIVERSITY
    Inventors: Rolf A. Prade, Fabio M. Squina
  • Publication number: 20110183381
    Abstract: Thermostable cellulase enzyme systems comprising at least one each of a thermostable endoglucanase, an exo-processive-endoglucanase, and a ?-glucosidase carry out the complete, coordinated hydrolysis of crystalline cellulose to monomeric glucose.
    Type: Application
    Filed: July 9, 2009
    Publication date: July 28, 2011
    Applicant: THE BOARD OF REGENTS FOR OKLAHOMA STATE UNIVERSITY
    Inventors: Rolf A. Prade, Hongliang Wang