Patents by Inventor Goetz Wilbert

Goetz Wilbert 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).

  • Process for preparing optically active cyanohydrins and secondary products
    Patent number: 6653498
    Abstract: The present invention relates to a process for preparing optically active cyanohydrins of the formula (II), by reacting an aldehyde of the formula (I) with HCN in a water-immiscible organic solvent in the presence of water, in the absence or presence of a buffer, in the presence of a (R)-hydroxynitrile lyase, where X, Y and Z in formula (II) have the same meaning as in formula (I), independently of each other are identical or different and are H, F, Cl, Br, I, OH, O(C1-C4-alkyl), OCOCH3, NHCOCH3, NO2 or C1-C4-alkyl.
    Type: Grant
    Filed: November 1, 2001
    Date of Patent: November 25, 2003
    Assignee: Clariant GmbH
    Inventors: Bettina Kirschbaum, Goetz Wilbert, Franz Effenberger