Patents by Inventor Shawn E. Hux

Shawn E. Hux 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).

  • Diffusion membrane
    Publication number: 20030104236
    Abstract: A diffusion membrane is a microporous sheet comprising a blend of an aliphatic polyolefin and a thermoplastic olefin (TPO) elastomer. The blend comprises less than 10 percent by weight of the elastomer. The preferred polyolefins are selected from a group consisting of polyethylene, polypropylene, copolymers thereof, and blends thereof. The preferred TPO elastomers are selected from the group consisting of ethylene-propylene rubbers (EPR), ethylene-propylene-diene terpolymer rubbers (EPDM), and combinations thereof.
    Type: Application
    Filed: December 3, 2001
    Publication date: June 5, 2003
    Applicant: Celgard Inc.
    Inventors: Khuy V. Nguyen, Donald K. Simmons, Ronald W. Call, Shawn E. Hux
  • 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
  • Method of making a trilayer battery separator
    Patent number: 5952120
    Abstract: A method of making a trilayer, shutdown battery separator has the following steps: extruding a polyethylene precursor; extruding a polypropylene precursor; forming a trilayer precursor, the trilayer precursor having the polyethylene precursor sandwiched between two polypropylene precursors; bonding the trilayer precursor; annealing the trilayer precursor; stretching the trilayer precursor; and forming thereby the battery separator.
    Type: Grant
    Filed: April 15, 1997
    Date of Patent: September 14, 1999
    Assignee: Celgard LLC
    Inventors: Wei-Ching Yu, Shawn E. Hux