TREA

Guofei Diao

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  • Shanghai, CN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Earphone case
    • Patent number D1056836
    • Issue date Jan 7, 2025
    • Huawei Technologies Co., Ltd.
    • Guofei Diao
    • D13 - Equipment for production, distribution, or transformation of energy
  • Information Patent Grant

    Earphone box
    • Patent number D1033874
    • Issue date Jul 9, 2024
    • HUAWEI DEVICE CO., LTD.
    • Guofei Diao
    • D03 - Travel goods and personal belongings
  • Information Patent Grant

    Headphones
    • Patent number D1004575
    • Issue date Nov 14, 2023
    • Huawei Technologies Co., Ltd.
    • Yongping Jin
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Headphone
    • Patent number D1003276
    • Issue date Oct 31, 2023
    • Huawei Technologies Co., Ltd.
    • Yongping Jin
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Headset
    • Patent number D990454
    • Issue date Jun 27, 2023
    • Huawei Technologies Co., Ltd.
    • Ying Zhao
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Headset
    • Patent number D980824
    • Issue date Mar 14, 2023
    • Huawei Technologies Co., Ltd.
    • Ying Zhao
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Earphone
    • Patent number D979539
    • Issue date Feb 28, 2023
    • Huawei Technologies Co., Ltd.
    • Donghyeok Park
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Wireless headset
    • Patent number D967803
    • Issue date Oct 25, 2022
    • Huawei Technologies Co., Ltd.
    • Ying Zhao
    • D14 - Recording, communication, or information retrieval equipment