Patents Represented by Attorney Graig M. Bell

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  • Novel drug delivery system for antitussives
    Patent number: 4929508
    Abstract: A drug delivery system comprising a core material comprising a drug, and a hydrophobic matrix coating the core. The coating delays hydration of the drug and masks the taste of the drug. The coating comprises an emulsifier, an edible fatty acid or wax and a glyceride. The delivery system can be incorporated into various food products, pharmaceutical preparations and proprietary products.
    Type: Grant
    Filed: July 26, 1988
    Date of Patent: May 29, 1990
    Assignee: Warner-Lambert Company
    Inventors: Shri C. Sharma, James J. Shaw, Robert K. Yang