TREA

Calvin Chen

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  • Taipei Hsien, TW
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Patents Grantslast 30 patents

  • Information Patent Grant

    Battery
    • Patent number D515026
    • Issue date Feb 14, 2006
    • Symbol Technologies, Inc.
    • Jorg Schlieffers
    • D13 - Equipment for production, distribution, or transformation of energy
  • Information Patent Grant

    Battery
    • Patent number D508892
    • Issue date Aug 30, 2005
    • Symbol Technologies, Inc.
    • Jorg Schlieffers
    • D13 - Equipment for production, distribution, or transformation of energy