TREA

Wei ZHENG

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  • Chengdu, CN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Ultra-high expansion downhole packer
    • Patent number 11,732,546
    • Issue date Aug 22, 2023
    • VERTECHS OIL & GAS TECHNOLOGY CO., LTD.
    • Chengsong Qiu
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Spiral deployed isolation tool
    • Patent number 11,326,416
    • Issue date May 10, 2022
    • Vertechs Petroleum Technology Innovation & Equipment Manufacturing Co., Ltd.
    • Wei Zheng
    • E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents