TREA

William W. Yen

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  • Arlington, MA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Thermoplastic food casing
    • Patent number 6,589,615
    • Issue date Jul 8, 2003
    • William W. Yen
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Wettable nonwoven battery separator
    • Patent number 6,495,292
    • Issue date Dec 17, 2002
    • William W. Yen
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Battery separator
    • Patent number 6,159,634
    • Issue date Dec 12, 2000
    • Duracell Inc.
    • William W. Yen
    • H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents