Patents by Inventor Khuy Van Nguyen

Khuy Van Nguyen 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).

  • Structurally stable fusible battery separators and method of making same
    Patent number: 6346350
    Abstract: A fusible, structurally stabilized battery separator is disclosed. The separator is formed by extruding a cylindrical parison of a polymer film and quenching the film on both sides with a low temperature fluid stream prior to processing the film to impart microporosity. Most preferably, the film includes at least a polyethylene layer and polypropylene layer.
    Type: Grant
    Filed: April 20, 1999
    Date of Patent: February 12, 2002
    Assignee: Celgard Inc.
    Inventors: Ronald W. Call, Pierre C. Cook, Shawn E. Hux, Khuy Van Nguyen, Wei-Ching Yu
  • Hydrophilic polyolefin having a coating containing a surfactant and an EVOH copolymer
    Patent number: 6287730
    Abstract: The present invention is directed to a hydrophilic polyolefin article comprising a polyolefin article having a coating containing a surfactant and an ethylene vinyl alcohol (EVOH) copolymer.
    Type: Grant
    Filed: August 14, 1998
    Date of Patent: September 11, 2001
    Assignee: Celgard Inc.
    Inventors: Robert W. Callahan, Khuy Van Nguyen