TREA

Yang Liu

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  • Beijing, CN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Earphone
    • Patent number D945402
    • Issue date Mar 8, 2022
    • Mobvoi Information Technology Company Limited
    • Chen Yu
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Earphone charging box
    • Patent number D940073
    • Issue date Jan 4, 2022
    • Mobvoi Information Technology Company Limited
    • Chen Yu
    • D13 - Equipment for production, distribution, or transformation of energy
  • Information Patent Grant

    Earphone
    • Patent number D847794
    • Issue date May 7, 2019
    • Mobvoi Information Technology Company Limited
    • Shuai Guo
    • D14 - Recording, communication, or information retrieval equipment