Patents by Inventor Jeffrey Hsing-Gan Yen

Jeffrey Hsing-Gan Yen 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: 7091288
    Abstract: Polymerization of fluoroolefin monomers proceeds in a supercritical carbon dioxide solvent at high monomer loading levels to provide a high molecular weight polymer with low polydispersity and/or a unimodal molecular weight distribution.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: August 15, 2006
    Assignee: Arkema Inc.
    Inventors: Sunggyu Lee, H. Bryan Lanterman, Abhay Sardesai, Jonathan Wenzel, Benjamin Marshall, Jeffrey Hsing-Gan Yen, Ramin Amin-Sanayei, Maria Moucharik
  • Patent number: 5091593
    Abstract: A process for removing sulfur from an organic sulfide containing three or more chemically bound sulfur atoms is disclosed wherein said sulfide is contacted with a defined catalyst at elevated temperature to increase the disproportionation rate and the corresponding sulfide of lower sulfur rank is continuously removed from the reaction zone.
    Type: Grant
    Filed: May 26, 1989
    Date of Patent: February 25, 1992
    Assignee: ATOCHEM North America, Inc.
    Inventors: Michael J. Lindstrom, Glenn T. Carroll, Jeffrey Hsing-Gan Yen, Roger T. Clark