TREA

Kun Yan

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  • Changshu, CN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Music earphone
    • Patent number 9,344,791
    • Issue date May 17, 2016
    • Jiangsu Betterlife Medical Co., Ltd
    • Yong David Zhao
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

  • Information Patent Application

    MUSIC EARPHONE
    • Publication number 20150249877
    • Publication date Sep 3, 2015
    • JIANGSU BETTERLIFE MEDICAL CO., LTD
    • Yong David Zhao
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE