TREA

Changqing Liu

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  • Langfang, CN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Sample collecting device
    • Patent number 11,607,686
    • Issue date Mar 21, 2023
    • OVATION HEALTH SCIENCE AND TECHNOLOGY CO., LTD
    • Bruce Qing Tang
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Patents Applicationslast 30 patents

  • Information Patent Application

    SAMPLE COLLECTING DEVICE
    • Publication number 20220184615
    • Publication date Jun 16, 2022
    • Ovation Health Science and Technology Co.,Ltd
    • Bruce Qing Tang
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL