Patents by Inventor Bruce C. MacDonald

Bruce C. MacDonald 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).

  • Osmotic delivery system
    Publication number: 20030175346
    Abstract: An osmotic pharmaceutical tablet is described which comprises a single-layer compressed core surrounded by a water permeable layer having a passageway. The single-layer core contains (i) a non-ripening drug having a solubility per dose less than about 1 mL−1, (ii) about 2.0% to about 20% by weight of a hydroxyethylcellulose having a weight-average, molecular weight from about 300,000 to about 2,000,000, and (iii) an osmagent.
    Type: Application
    Filed: January 27, 2003
    Publication date: September 18, 2003
    Inventors: Anne Billotte, Rebecca Carrier, Michael B. Fergione, Dwayne T. Friesen, Bruce C. MacDonald, Lee A. Miller, Michael C. Roy, Sheri L. Shamblin, Kenneth C. Waterman