Patents by Inventor Wen L. Hsu

Wen L. Hsu 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).

  • Anionic diene polymerization process with branching
    Patent number: 4845165
    Abstract: Metals from Groups I and II and organometallic compounds thereof can be used to catalyze the polymerization of diene monomers into polymers. The polymers formed in such polymerizations are terminated with the metal used to catalyze the polymerization and are sometimes referred to as living polymers. Very useful blends of such polymers can be made by utilizing the process of the present invention.
    Type: Grant
    Filed: March 13, 1987
    Date of Patent: July 4, 1989
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Adel F. Halasa, Sylvia E. Robertson-Wilcox, David J. Zanzig, Richard J. Arconti, Wen L. Hsu
  • Getter pump for hydrogen and hydrocarbon gases
    Patent number: 4820226
    Abstract: A gettering device for hydrogen isotopes and gaseous hydrocarbons based on the interaction of a plasma and graphite used as cathodic material. The plasma is maintained at a current density within the range of about 1 to about 1000 mA/cm.sup.2. The graphite may be heated to a temperature greater than 1000.degree. C. The new device offers high capacity, low noise, and gas species selectivity.
    Type: Grant
    Filed: October 14, 1987
    Date of Patent: April 11, 1989
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: Wen L. Hsu