Patents by Inventor Simon Hsaio-Pao Yu

Simon Hsaio-Pao Yu 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).

  • Bioadhesive polymer compositions
    Patent number: 6297337
    Abstract: Improved crosslinked ionic polymers or salts thereof having a soluble polymer fraction of less than about 15 wt %, and methods for making the same. The polymers are useful as bioadhesives, thickeners, emulsifiers, suspending aids, and pharmaceutical controlled release excipients.
    Type: Grant
    Filed: May 19, 1999
    Date of Patent: October 2, 2001
    Assignee: PMD Holdings Corp.
    Inventors: Nancy S. Marchant, Simon Hsaio-Pao Yu, Zahid Amjad