Patents by Inventor Won Uook So

Won Uook So 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).

  • Method for concentrating aqueous tetrafluoroethylene emulsion by electrodialysis and its apparatus
    Patent number: 6045675
    Abstract: The present invention relates to a method and an apparatus for concentrating an aqueous PTFE emulsion in which a raw, aqueous PTFE emulsion containing fluorinated surfactants is concentrated by an electrodialysis technique using at least one nonionic surfactant as an anti-flocculation agent and a volatile electrolyte such that the formation of floccules is prevented.
    Type: Grant
    Filed: March 19, 1998
    Date of Patent: April 4, 2000
    Assignee: Korea Research Institute of Chemical Technology
    Inventors: Jung Min Lee, Jae Cheon Koh, Sang Jin Moon, Kwang Joo Kim, Hang Kyo Jin, Chul Ung Kim, Won Uook So