Patents by Inventor Richard L.-C. Yieh

Richard L.-C. Yieh 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).

  • Patent number: 6287598
    Abstract: This invention pertains to a dosage form for the management of epilepsies wherein the dosage form comprises administering valproic acid or a valproic acid derivative at a continuous rate over an extended time.
    Type: Grant
    Filed: May 28, 1993
    Date of Patent: September 11, 2001
    Assignee: Alza Corporation
    Inventors: Atul Devatt Ayer, Richard L.-C. Yieh, Brenda J. Pollock, Patrick S.-L. Wong
  • Patent number: 5707663
    Abstract: This invention pertains to a dosage form for the management of epilepsies wherein the dosage form comprises administering valproic acid or a valproic acid derivative at a continuous rate over an extended time.
    Type: Grant
    Filed: May 16, 1995
    Date of Patent: January 13, 1998
    Assignee: Alza Corporation
    Inventors: Atul Devatt Ayer, Richard L.-C. Yieh, Brenda J. Pollock, Patrick S.-L. Wong