TREA

Te-Tsao CHEN

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  • Buena Park, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Dartboard
    • Patent number 8,991,828
    • Issue date Mar 31, 2015
    • Te-Tsao Chen
    • F41 - WEAPONS
  • Information Patent Grant

    Dart with dual action arrangement
    • Patent number 7,241,236
    • Issue date Jul 10, 2007
    • Te-Tsao Chen
    • F42 - AMMUNITION BLASTING

Patents Applicationslast 30 patents

  • Information Patent Application

    Dartboard
    • Publication number 20130292906
    • Publication date Nov 7, 2013
    • Te-Tsao CHEN
    • F41 - WEAPONS
  • Information Patent Application

    DART WITH DUAL ACTION ARRANGEMENT
    • Publication number 20070161437
    • Publication date Jul 12, 2007
    • Te-Tsao Chen
    • F42 - AMMUNITION BLASTING