Patents by Inventor Mostyn P. Embry

Mostyn P. Embry 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 compositions
    Patent number: 4894238
    Abstract: A controlled release composition comprising an active substance other than a prostaglandin and a polymeric carrier therefor comprising residues having a ratio of number average molecular weight to functionality greater than 1000 which comprises polyethylene oxide and are cross-linked through urethane groups.
    Type: Grant
    Filed: June 14, 1988
    Date of Patent: January 16, 1990
    Assignee: National Research Development Corporation
    Inventors: Mostyn P. Embry, Neil B. Graham