Patents by Inventor Tein-Sone Chen

Tein-Sone 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).

  • Process for preparing syndiotactic vinyl aromatic polymers under high pressure inert gas
    Patent number: 5698644
    Abstract: Syndiotactic polymers of vinyl aromatic monomers are synthesized in the presence of a catalytic system consisting of a commercial titanium compound and methylaluminoxane under high pressure and/or supercritical state of inert gas such as argon or nitrogen.
    Type: Grant
    Filed: January 27, 1997
    Date of Patent: December 16, 1997
    Assignee: National Science Council
    Inventors: Andrew Teh Hu, Hong-Ji Lee, Tein-Sone Chen