Patents by Inventor J urgen Wichmann

J urgen Wichmann 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).

  • Tricyclic pyrazole derivatives
    Patent number: 5561150
    Abstract: Compounds of the formula ##STR1## wherein R.sup.1 to R.sup.4 each are hydrogen, hydroxy, halogen, lower alkyl, lower alkoxy or phenyl;R.sup.5 is hydrogen or lower alkyl,R.sup.6 is hydrogen, lower alkyl or lower alkoxy;X is --(CR.sup.7 R.sup.8).sub.n -- or --CH.dbd.CH--;R.sup.7 and R.sup.8 are hydrogen or lower alkyl andn is 1 or 2,as well as pharmaceutically acceptable salts of basic compounds of formula I, bind to serotonin receptors, and thus are useful in treating central nervous system disorders.
    Type: Grant
    Filed: August 2, 1995
    Date of Patent: October 1, 1996
    Assignee: Hoffman-La Roche Inc.
    Inventor: J urgen Wichmann