Patents by Inventor Yuequin Yang

Yuequin Yang 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).

  • Bacterial strains and fermentation processes for the production of 2-keto-l-gulonic acid
    Patent number: 6387654
    Abstract: The present invention relates to novel bacterial strains belonging to the genera Gluconobacter, Ketogulonogenium and Bacillus useful for the production of 2-keto-L-gulonic acid. The present invention further relates to the use of these strains for the production of 2-keto-L-gulonic acid in mixed culture by fermentative conversion of D-sorbitol. The present invention further relates to the strains of the present invention transformed by a vector.
    Type: Grant
    Filed: May 4, 2000
    Date of Patent: May 14, 2002
    Assignee: Archer-Daniels-Midland Company
    Inventors: Hungming J. Liaw, Robert L. Kowzic, Jr., John M. Eddington, Yuequin Yang
  • Bacterial strains and use thereof in fermentation process for 2-keto-L-gulonic acid production
    Patent number: 5834231
    Abstract: The present invention relates to a process for the production of 2-keto-L-gulonic acid by fermentative conversion of L-sorbose and/or D-sorbitol. The present invention further relates to novel bacterial strains useful in this process.
    Type: Grant
    Filed: October 24, 1996
    Date of Patent: November 10, 1998
    Assignee: Archer Daniels Midland Co.
    Inventors: Steven F. Stoddard, Hungming J. Liaw, John Eddington, Yuequin Yang