Patents by Inventor Zhen Yu Yang

Zhen Yu Yang 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).

  • Fluorinated ionic polymers
    Publication number: 20040039142
    Abstract: Described herein are monomers of the formula
    Type: Application
    Filed: June 24, 2003
    Publication date: February 26, 2004
    Inventor: Zhen Yu Yang
  • Grafting of polymers with fluorocarbon compounds
    Patent number: 6191231
    Abstract: Fluorine containing terminal olefins may be grafted onto polymers containing hydrogen bound to carbon in the presence of free radicals. The olefins may also contain other functional groups. The resulting novel grafted polymers are useful as molding resins, for coating and as catalysts.
    Type: Grant
    Filed: July 13, 1999
    Date of Patent: February 20, 2001
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Neville Everton Drysdale, Lin Wang, Zhen Yu Yang