Patents by Inventor Ralph E. Kunkee

Ralph E. Kunkee 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).

  • Malolactic gene
    Patent number: 4472502
    Abstract: DNA sequences which are capable of converting L-malate into L-lactate are incorporated into suitable vectors and used to transform both prokaryotic and eukaryotic hosts. The DNA sequences and vectors are particularly useful in conferring the ability to perform malolactic fermentation on wine producing yeasts.Saccharomyces cerevisiae 2514-10C/ySWl and E. coli RRI/ySWl were deposited at the A.T.C.C. on Aug. 16, 1982, and given accession Ser. Nos. 20651 and 39176, respectively.
    Type: Grant
    Filed: August 16, 1982
    Date of Patent: September 18, 1984
    Assignee: The Regents of the University of California
    Inventors: Sidney R. Snow, Ralph E. Kunkee, Robert A. Hodges, Steven A. Williams
  • Method for reducing fusel oil in alcoholic beverages and yeast strain useful in that method
    Patent number: 4374859
    Abstract: A method and microorganism are set out for producing a fermentation product which contains ethanol but has a lower than usual fusel oil content. The mutant microorganism is of the genus Saccharomyces or Torulaspora.
    Type: Grant
    Filed: July 7, 1980
    Date of Patent: February 22, 1983
    Assignee: The Regents of The University of California
    Inventors: Ralph E. Kunkee, S. Richard Snow, Craig Rous