Patents Represented by Attorney Catherine P. Roseman

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  • Process for producing 2-keto-L-gulonic acid
    Patent number: 5312741
    Abstract: The present invention relates to a process for producing 2-keto-L-gulonic acid by fermentative conversion of D-sorbitol in high yield. 2-Keto-L-gulonic acid is an important intermediate for the production of L-ascorbic acid into which it can be converted.
    Type: Grant
    Filed: June 8, 1992
    Date of Patent: May 17, 1994
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Tatsuo Hoshino, Setuko Ojima, Teruhide Sugisawa