Patents by Inventor Erfinders J. Stanek

Erfinders J. Stanek 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).

  • Arylhydrazones and pharmaceutical compositions containing the same
    Patent number: 5118709
    Abstract: Compounds of formula I ##STR1## wherein A, X.sub.1, X.sub.2, X.sub.3, X.sub.4, Y, Z and R.sub.1 to R.sub.6 have the meanings given in the description, have valuable pharmaceutical properties and are effective especially against tumours. They are prepared in a manner known per se.
    Type: Grant
    Filed: August 29, 1990
    Date of Patent: June 2, 1992
    Assignee: Ciba-Geigy Corporation
    Inventors: Erfinders J. Stanek, Giorgio Caravatti, Jorg Frei, Hans-Georg Capraro