Patents by Inventor Hans-Georg Capraro

Hans-Georg Capraro 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 thereof
    Patent number: 5238941
    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: March 11, 1992
    Date of Patent: August 24, 1993
    Assignee: Ciba-Geigy Corporation
    Inventors: Jaroslav Stanek, Giorgio Caravatti, Jorg Frei, Hans-Georg Capraro
  • 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
  • Biaryl compounds
    Patent number: 5064832
    Abstract: Compounds of formula I ##STR1## wherein X.sub.1, X.sub.2, X.sub.3, X.sub.4, X.sub.5, X.sub.6, Y, Z and R.sub.1 -R.sub.4 are as defined in the description, have valuable pharmaceutical properties and are especially active against tumors. They are prepared in a manner known per se.
    Type: Grant
    Filed: August 16, 1990
    Date of Patent: November 12, 1991
    Assignee: Ciba-Geigy Corporation
    Inventors: Jaroslav Stanek, Giorgio Caravatti, Jorg Frei, Hans-Georg Capraro
  • Arylhydrazones useful as SAMDC inhibitors
    Patent number: 4971986
    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 tumors. They are prepared in a manner known per se.
    Type: Grant
    Filed: March 15, 1989
    Date of Patent: November 20, 1990
    Assignee: Ciba-Geigy Corporation
    Inventors: Jaroslav Stanek, Giorgio Caravatti, Jorg Frei, Hans-Georg Capraro
  • Bipyridine compounds
    Patent number: 4968804
    Abstract: Compounds of formula I ##STR1## wherein X.sub.1, X.sub.2, X.sub.3, X.sub.4, X.sub.5, X.sub.6, Y, Z and R.sub.1 -R.sub.4 are as defined in the description, have valuable pharmaceutical properties and are especially active against tumours. They are prepared in a manner known per se.
    Type: Grant
    Filed: July 5, 1989
    Date of Patent: November 6, 1990
    Assignee: Ciba-Geigy Corporation
    Inventors: Jaroslav Stanek, Giorgio Caravatti, Jorg Frei, Hans-Georg Capraro