TREA

James A. Avtges

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  • Belmont, MA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Battery separator
    • Patent number 5,389,433
    • Issue date Feb 14, 1995
    • W. R. Grace & Co.-Conn.
    • Victor S. C. Chang
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Battery separator
    • Patent number 5,362,582
    • Issue date Nov 8, 1994
    • W. R. Grace & Co.-Conn.
    • Victor S. Chang
    • H01 - BASIC ELECTRIC ELEMENTS