Patents by Inventor Hsien Cheng

Hsien Cheng 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).

  • Medicament compositions derived from quinolizine and quinolizinone and methods of use thereof
    Patent number: 5011846
    Abstract: The present invention is directed to the use of esters of hexahydro-8-hydroxy-2,6-methano-2H-quinolizin-3(4H)-one and hexahydro-8-hydroxy-2,6-methano-2H-quinolizines in the manufacture of a medicament for the treatment of anxiety, psychosis, glaucoma and for the stimulation of gastric motility.
    Type: Grant
    Filed: May 16, 1990
    Date of Patent: April 30, 1991
    Assignee: Merrell Dow Pharmaceuticals Inc.
    Inventors: Maurice W. Gittos, Francis P. Miller, Stephen M. Sorensen, John R. Fozard, Paul Moser, Michael G. Palfreyman, Hsien Cheng