Patents Represented by Attorney Barbara Ernst

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  • Compositions and processes for the sustained release of drugs
    Patent number: 5328697
    Abstract: The present invention relates to compositions for the sustained release of drugs and to methods for the production of such compositions. In one embodiment, somatotropin is layered onto non-pareil seeds, which, in turn are sprayed with a glycine solution. Next, a coating of a wax mixture is applied.
    Type: Grant
    Filed: February 10, 1992
    Date of Patent: July 12, 1994
    Assignee: Mallinckrodt Veterinary, Inc.
    Inventors: Siva N. Raman, Matthew W. Gray, Rodger L. Smith