TREA

Barnabas C. Chen

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  • Roland Heights, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Rocket ball point pen
    • Patent number D474808
    • Issue date May 20, 2003
    • World Trend, Inc.
    • Barnabas C. Chen
    • D19 - Office supplies
  • Information Patent Grant

    Writing instrument
    • Patent number D357936
    • Issue date May 2, 1995
    • World Trend, Inc.
    • Barnabas C. Chen
    • D19 - Office supplies