Patents by Inventor Dennis J. Kertesz

Dennis J. Kertesz 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).

  • Novel process for the synthesis of the enantiomers of bicyclo(4.2.0)oct-2-en-7-one and derivatives
    Patent number: 5049497
    Abstract: The enantiomers of formulas ##STR1## are prepared in a sequence starting from the racemic compound of formula ##STR2## wherein X is hydro or bromo when Y is bromo, or X is chloro when Y is chloro. The key step of this process involves a microbial reduction of the compound of formula (3) to give a ketone and an alcohol of high enantiomeric purity.
    Type: Grant
    Filed: August 25, 1986
    Date of Patent: September 17, 1991
    Assignee: Syntex (U.S.A.) Inc.
    Inventors: Arthur F. Kluge, Dennis J. Kertesz