Patents by Inventor James A. Doncheck

James A. Doncheck 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: 5521090
    Abstract: Microalgal biomass that comprises cells of Chlorella pyrenoidosa which contain greater than 2.0% by dry weight of L-ascorbic acid (Vitamin C), microorganisms and processes that form the biomass, and L-ascorbic acid enhanced animal feed compositions that contain the biomass are disclosed.
    Type: Grant
    Filed: February 10, 1994
    Date of Patent: May 28, 1996
    Assignee: Bio-Technical Resources
    Inventors: James A. Doncheck, Ronald J. Huss, Jeffrey A. Running, Thomas J. Skatrud
  • Patent number: 5405624
    Abstract: A process for producing a product with an intensified beer flavor is disclosed. The process comprises: steeping barley with water to produce steeped-out barley; treating the steeped-out barley with an enzyme promoter; preferably gibberellic acid; germinating the steeped-out barley to produce a green malt; heating the green malt to 70-89 C. for 0.5 to 3 hours while maintaining the moisture content of the green malt at 30-55 weight percent; drying the heated green malt to produce dried malt, the dried malt having a moisture content of 3.5-5.5 weight percent; making a mash from the dried malt by grinding and adding brewing water, thus producing a wort and a residue; separating the wort from the residue; boiling the wort to produce boiled wort; cooling and pitching the boiled wort with yeast to produce pitched wort; and fermenting the pitched wort to produce the product with an intensified beer flavor.
    Type: Grant
    Filed: November 5, 1993
    Date of Patent: April 11, 1995
    Assignee: Bio-Technical Resources
    Inventors: James A. Doncheck, Bruce J. Morton, Michael R. Sfat, Ann C. Wege
  • Patent number: 5204245
    Abstract: An enzymatic process for extracting a nucleoside, such as thymidine, from a biomass without substantial thymine production.
    Type: Grant
    Filed: May 15, 1991
    Date of Patent: April 20, 1993
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: James A. Doncheck, James R. Millis, Paul E. Swanson