Patents Examined by Robert Gerstz
  • New tetrazole derivatives, process for their preparation and their use
    Patent number: 5254574
    Abstract: Tetrazole derivatives of the formula ##STR1## in which R.sub.1 denotes a saturated or unsaturated, straight-chain or branched (C.sub.1 -C.sub.6) alkyl radical and R.sub.2 denotes methyl or ethyl, and their pharmaceutically usable salts.
    Type: Grant
    Filed: December 31, 1991
    Date of Patent: October 19, 1993
    Assignee: Chemisch Pharmazeutische Forschungsgesellschaft m.b.H.
    Inventors: Dieter Binder, Josef Weinberger, Andreas Koch