Patents by Inventor Cletus P. Kurtzman

Cletus P. Kurtzman 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).

  • METHODS AND YEAST STRAINS FOR CONVERSION OF LIGNOCELLULOSIC BIOMASS TO LIPIDS AND CAROTENOIDS
    Publication number: 20160265009
    Abstract: The present invention provides for the use of oleaginous yeast strains that are capable of converting lignocellulosic hydrolysates to lipids. More specifically, under specific molar carbon to nitrogen ratios of treated biomass hydrolysates, oleaginous yeasts are able to accumulate lipids that are suitable for the manufacture of biofuels and other products of interest. Additionally, some yeast species provided herein produce carotenoids when grown utilizing the disclosed methodologies.
    Type: Application
    Filed: March 11, 2016
    Publication date: September 15, 2016
    Inventors: Patricia J. Slininger, Bruce S. Dien, Cletus P. Kurtzman, Bryan R. Moser, Venkatesh Balan, Mingjie Jin, Leonardo da Costa Sousa, Erica L. Bakota
  • Fermentative production of sophorolipids from soybean and other vegetable oils
    Patent number: 9382566
    Abstract: Open chain sophorolipids may be produced by fermentation with Candida sp. NRRL Y-27208 or C. riodocensis. Dimers and trimers of sophorolipids are also produced. The sophorolipds are produced by inoculating a fermentation medium comprising a carbon source and a lipid, with Candida riodocensis or Candida species NRRL Y-27208, and incubating under aerobic conditions and for a period of time effective to produce an open chain sophorolipid in the medium. The sophorolipids may be subsequently recovered from the fermentation medium.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: July 5, 2016
    Assignee: The United States of America, as represented by the Secretary of Agriculture
    Inventors: Cletus P. Kurtzman, Neil P. Price, Karen J. Ray, Tsung Min Kuo
  • Production of itaconic acid by
    Patent number: 7479381
    Abstract: Itaconic acid may be produced in high yields by fermentation with a yeast, Pseudozyma antarctica NRRL Y-30980.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: January 20, 2009
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Tsung Min Kuo, Cletus P. Kurtzman, William E. Levinson
  • Multiplex DNA identification of clinical yeasts using flow cytometry
    Patent number: 7465543
    Abstract: Oligonucleotide probes that are specific for pathogenic yeasts and which may be used for the detection of such yeasts in biological samples are described. These probes are specific for yeast species within the clade of Candida albicans and other pathogenic ascomycetous yeasts, and may be used singly or in a multiplex hybridization assay system.
    Type: Grant
    Filed: May 20, 2005
    Date of Patent: December 16, 2008
    Assignee: The United States of America, as represented by the Secretary of Agriculture
    Inventors: Brent T. Page, Cletus P. Kurtzman
  • Conversion of D-xylose to ethanol by the yeast Pachysolen tannophilus
    Patent number: 4359534
    Abstract: A method is disclosed for converting D-xylose to ethanol relying on the unique ability of the yeast Pachysolen tannophilus to ferment this five-carbon sugar without the use of added enzymes. This process will be particularly useful in the production of ethanolic fuel from plant biomass.
    Type: Grant
    Filed: April 28, 1981
    Date of Patent: November 16, 1982
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Cletus P. Kurtzman, Rodney J. Bothast, James E. VanCauwenberge