Patents by Inventor Claire J. Lovegrove

Claire J. Lovegrove 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).

  • Sustained release pharmaceutical compositions in oral dosage form
    Patent number: 4919938
    Abstract: Oral dosage forms for neutral, zwitterions or slats of acidic or basic drugs with approximate zero order release kinetics comprise a core matrix of the drug, and a gelling polymer, the matrix being coated with a water permeable but insoluble polymer.
    Type: Grant
    Filed: October 4, 1989
    Date of Patent: April 24, 1990
    Assignee: Merck Sharp & Dohme Ltd.
    Inventors: Claire J. Lovegrove, David A. Rawlins, Anthony J. Phillips, David A. Tainsh