Patents by Inventor David G. Sixsmith

David G. Sixsmith 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).

  • Pharmaceutical lozenges
    Patent number: 5322694
    Abstract: The present invention is directed to gelatin treated polyhydric alcohol compositions, their preparation, and to pharmaceutical lozenges prepared therefrom. The pre-granulation of a polyhydric alcohol with an aqueous gelatin solution prior to compression, produces lozenges having a delayed rate of dissolution.
    Type: Grant
    Filed: March 9, 1992
    Date of Patent: June 21, 1994
    Assignee: Merrell Dow Pharmaceuticals Inc.
    Inventor: David G. Sixsmith