TREA

Stephen Chang

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  • Carlsbad, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Security apparatus and method
    • Patent number 9,142,108
    • Issue date Sep 22, 2015
    • Ecolink Intelligent Technology, Inc.
    • George Seelman
    • G08 - SIGNALLING

Patents Applicationslast 30 patents

  • Information Patent Application

    SECURITY APPARATUS AND METHOD
    • Publication number 20130057405
    • Publication date Mar 7, 2013
    • Ecolink Intelligent Technology, Inc.
    • George Seelman
    • G08 - SIGNALLING