Patents by Inventor David C. Sperry

David C. Sperry 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 dosage form comprising a sulfite compound
    Publication number: 20040105884
    Abstract: The present invention provides a pharmaceutical dosage form comprising a fill material sealed in a gelatin capsule; the fill material comprises (a) a selective COX-2 inhibitory drug of low water solubility, and (b) a sulfite compound in an amount sufficient to inhibit cross-linking of gelatin in said gelatin capsule upon storage of the dosage form in a closed container maintained at 40° C. and 75% relative humidity for a period of 6 months.
    Type: Application
    Filed: July 31, 2003
    Publication date: June 3, 2004
    Inventors: Ping Gao, Juliane M. Bauer, Gary D. Ewing, David C. Sperry