Patents by Inventor Gernot Wersin

Gernot Wersin 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).

  • Organic compounds
    Patent number: 3997593
    Abstract: This invention provides a new process for the preparation of a compound of formula I, ##STR1## wherein R' is alkyl or cycloalkyl, andR is an organic radical which is inert under the reaction conditions,By oxidizing a compound of formula II, ##STR2## wherein R and R' are as defined above, with nitric acid.
    Type: Grant
    Filed: June 5, 1975
    Date of Patent: December 14, 1976
    Assignee: Sandoz Ltd.
    Inventors: Paul Stadler, Gernot Wersin