Patents by Inventor Daniel J. Doyon

Daniel J. Doyon 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).

  • Controlled release pharmaceutical compositions from spherical granules in tabletted oral dosage unit form
    Patent number: 5283065
    Abstract: A controlled release pharmaceutical composition in oral dosage unit form comprising a tablet comprising a therapeutically effective number of active spherical granules comprising an effective amount of active medicament, a pharmaceutically acceptable normally solid diluent adapted to form a diffusable matrix for the active medicament and an optional pharmaceutically acceptable excipient; and a number of compressible spherical granules comprising a mono- or di-saccharide, an optional pharmaceutically acceptable normally solid diluent adapted to form a diffusable matrix, an optional active medicament and/or an optional pharmaceutically acceptable excipient wherein the average compressive yield of the compressible spherical granules is less than the average compressive yield of the active spherical granules is provided. A method for the preparation and for the administration of the above defined composition is provided as well.
    Type: Grant
    Filed: March 23, 1992
    Date of Patent: February 1, 1994
    Assignee: American Cyanamid Company
    Inventors: Daniel J. Doyon, Madurai G. Ganesan, Wendy A. Preston, Nitin V. Sheth