TREA

ZAN-HUA LIU

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  • Taoyuan City, TW
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Patents Grantslast 30 patents

  • Information Patent Grant

    Double-sided vibrating speaker
    • Patent number 11,832,075
    • Issue date Nov 28, 2023
    • FORTUNE GRAND TECHNOLOGY INC.
    • Jian Lv
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Thin double-sided vibrating speaker
    • Patent number 11,632,609
    • Issue date Apr 18, 2023
    • FORTUNE GRAND TECHNOLOGY INC.
    • Ping-Yu Lee
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

  • Information Patent Application

    DOUBLE-SIDED VIBRATING SPEAKER
    • Publication number 20220322013
    • Publication date Oct 6, 2022
    • FORTUNE GRAND TECHNOLOGY INC.
    • JIAN LV
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE