Patents by Inventor William J. Christopher

William J. Christopher 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).

  • Psychotropic heterobicycloalkylpiperazine derivatives: 2. fused pyridazinones
    Patent number: 5116970
    Abstract: A series of psychotropic heterobicycloalkylpiperazine derivatives having the structure ##STR1## wherein V is a 3- or 4-membered unsaturated chain, containing all carbon atoms when 4-membered, or when a 3-membered chain, V contains an oxygen or sulfur atom as one of the members; R is H or C.sub.1-4 alkyl; W is CH, N, CH.sub.2, or a chemical bond; X is CH, N, SO.sub.2, or CO, with the proviso that both W and X cannot simultaneously be N; and Z is a heteroaromatic ring system. These compounds are useful antipsychotic and/or anxiolytic agents.
    Type: Grant
    Filed: December 20, 1990
    Date of Patent: May 26, 1992
    Inventors: James S. New, William J. Christopher