Patents by Inventor Christof Hildenbrand

Christof Hildenbrand 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).

  • Anthelmintics
    Patent number: 5132314
    Abstract: Anthelmintically active compounds of formula I are described ##STR1## in which R.sub.1 is hydrogen, halogen, C.sub.1 -C.sub.2 alkyl, C.sub.1 -C.sub.2 thioalkyl, C.sub.1 -C.sub.2 haloalkyl, nitro, C.sub.1 -C.sub.2 alkoxy, or the group SO.sub.n R in which R is C.sub.1 -C.sub.2 alkyl or phenyl and n is 0, 1 or 2;R.sub.2 is hydrogen, halogen, C.sub.1 -C.sub.2 alkyl, C.sub.1 -C.sub.2 haloalkyl, C.sub.1 -C.sub.2 haloalkoxy or C.sub.1 -C.sub.2 alkoxy;R.sub.3 is hydrogen or C.sub.1 -C.sub.2 alkyl;R.sub.4 is hydrogen or C.sub.1 -C.sub.2 alkyl;R.sub.5 is hydrogen, halogen or C.sub.1 -C.sub.5 alkyl;R.sub.6 is hydrogen, halogen or C.sub.1 -C.sub.5 alkyl;R.sub.7 is hydrogen, halogen, C.sub.1 -C.sub.2 alkyl, nitro, C.sub.1 -C.sub.2 haloalkyl, C.sub.1 -C.sub.2 haloalkoxy or C.sub.1 -C.sub.2 alkoxy;R.sub.8 is hydrogen, halogen, C.sub.1 -C.sub.2 alkyl, C.sub.1 -C.sub.2 haloalkyl, C.sub.1 -C.sub.2 haloalkoxy or C.sub.1 -C.sub.2 alkoxy;R.sub.9 is hydrogen, halogen, C.sub.1 -C.sub.2 alkyl, C.sub.1 -C.sub.2 haloalkyl, C.sub.1 -C.
    Type: Grant
    Filed: October 25, 1991
    Date of Patent: July 21, 1992
    Assignee: Ciba-Geigy Corporation
    Inventors: Peter Maienfisch, Christof Hildenbrand, Jean-Claude Gehret
  • Anthelmintics
    Patent number: 5077300
    Abstract: Anthelmintically active compounds of formula I are described ##STR1## in which R.sub.1 is hydrogen, halogen, C.sub.1 -C.sub.2 alkyl, C.sub.1 -C.sub.2 haloalkyl, nitro, C.sub.1 -C.sub.2 alkoxy, or the group SO.sub.n R in which R is C.sub.1 -C.sub.2 alkyl or phenyl and n is 0, 1 or 2;R.sub.2 is hydrogen, halogen, C.sub.1 -C.sub.2 alkyl, C.sub.1 -C.sub.2 haloalkyl, C.sub.1 -C.sub.2 haloalkoxy or C.sub.1 -C.sub.2 alkoxy;R.sub.3 is hydrogen or C.sub.1 -C.sub.2 alkyl;R.sub.4 is hydrogen or C.sub.1 -C.sub.2 alkyl;R.sub.5 is hydrogen, halogen or C.sub.1 -C.sub.5 alkyl;R.sub.6 is hydrogen, halogen or C.sub.1 -C.sub.5 alkyl;R.sub.7 is hydrogen, halogen, or C.sub.1 -C.sub.2 alkyl, nitro, C.sub.1 -C.sub.2 haloalkyl, C.sub.1 -C.sub.2 haloalkoxy or C.sub.1 -C.sub.2 alkoxy;R.sub.8 is hydrogen, halogen, C.sub.1 -C.sub.2 alkyl, C.sub.1 -C.sub.2 haloalkyl, C.sub.1 -C.sub.2 haloalkoxy or C.sub.1 -C.sub.2 alkoxy;R.sub.9 is hydrogen, halogen, C.sub.1 -C.sub.2 alkyl, C.sub.1 -C.sub.2 haloalkyl, C.sub.1 -C.sub.2 haloalkoxy or C.
    Type: Grant
    Filed: September 19, 1990
    Date of Patent: December 31, 1991
    Assignee: Ciba-Geigy Corporation
    Inventors: Peter Maienfisch, Christof Hildenbrand, Jean-Claude Gehret