Patents by Inventor Robin P. Mitchell

Robin P. Mitchell 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).

  • Morphine-containing efferverscent composition
    Patent number: 5387420
    Abstract: In an effervescent formulation containing morphine, inclusion of the morphine in the basic component gives superior storage stability.
    Type: Grant
    Filed: January 8, 1993
    Date of Patent: February 7, 1995
    Assignee: May & Baker Ltd.
    Inventor: Robin P. Mitchell