Patents by Inventor Jane Chang Chen

Jane Chang Chen 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 formulation of captopril or a prodrug of captopril
    Patent number: 5728402
    Abstract: The invention provides a controlled release pharmaceutical unit dose composition for oral administration which comprises: (a) an internal phase which comprises captopril or a prodrug of captopril in admixture with a hydrogel forming agent; and (b) an external phase which comprises a coating which resists dissolution in the stomach.
    Type: Grant
    Filed: November 16, 1994
    Date of Patent: March 17, 1998
    Assignee: Andrx Pharmaceuticals Inc.
    Inventors: Chih-Ming Chen, Jane Chang Chen, Jainbo Xie, Elliot Hahn