Patents by Inventor Hsien C. Cheng

Hsien C. 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).

  • Tetrahydro and imidazoline antisecretory compounds
    Patent number: 4260626
    Abstract: Novel antisecretory compounds of the formula: ##STR1## wherein R is ##STR2## and pharmaceutically acceptable salts, diasteriomers and individual optical isomers thereof.
    Type: Grant
    Filed: March 26, 1979
    Date of Patent: April 7, 1981
    Assignee: Richardson-Merrell Inc.
    Inventors: Albert A. Carr, Hsien C. Cheng, Stephen W. Horgan, James K. Woodward