Patents by Inventor Colin J. Dunn

Colin J. Dunn 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).

  • Geminal bisphosphonic acids and derivatives as anti-arthritic agents
    Patent number: 5220021
    Abstract: Unsaturated geminal phosphonates (III) ##STR1## either as the esters, free acids or salts are useful in the treatment of arthritis.
    Type: Grant
    Filed: September 6, 1991
    Date of Patent: June 15, 1993
    Assignee: The Upjohn Company
    Inventors: Colin J. Dunn, Richard A. Nugen