Patents by Inventor Andrew G. Muddle

Andrew G. Muddle 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).

  • Retrievable pessary
    Patent number: 5269321
    Abstract: A retrievable pessary for intravaginal or intrarectal use comprises a solid body comprising a pharmaceutically active ingredient; a net pouch which encloses the body; and a withdrawal cord attached to the pouch to enable the pessary to be withdrawn after use.
    Type: Grant
    Filed: July 14, 1992
    Date of Patent: December 14, 1993
    Assignee: Controlled Therapeutics (Scotland) Ltd.
    Inventors: Ishbel A. MacDonald, Andrew G. Muddle, Lindesay R. MacFarlane