Patents by Inventor Philippe Delest

Philippe Delest 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).

  • Enzymatic process for the preparation of deoxyketoses
    Patent number: 5077203
    Abstract: The invention relates to a process for the preparation of compounds of formulaCH.sub.3 (CHOH).sub.n --COCH.sub.2 OHin which n is an integer from 1 to 4, wherein L-serine, glyoxylic acid and an aldehyde of formula CH.sub.3 (CHOH).sub.n-1 CHO are reacted in the presence of a glyoxylate aminotransferase and a transketolase. The intermediate aldehyde CH.sub.3 (CHOH).sub.2 CHO is enzymatically prepared by the action of a polyol dehydrogenase and a xylose reductase on CH.sub.3 CHOHCOCH.sub.2 OH.
    Type: Grant
    Filed: March 12, 1991
    Date of Patent: December 31, 1991
    Assignee: Sanofi
    Inventors: Philippe Delest, Colette Demuynck