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Xiaoxuan Xu

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  • Beijing, CN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Separation device
    • Patent number 10,563,495
    • Issue date Feb 18, 2020
    • China Petroleum and Chemical Corporation
    • Changchao Hu
    • E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

  • Information Patent Application

    OIL-WATER SEPARATION DEVICE
    • Publication number 20230330563
    • Publication date Oct 19, 2023
    • China Petroleum and Chemical Corporation
    • Changchao HU
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Application

    Separation Device
    • Publication number 20190055829
    • Publication date Feb 21, 2019
    • China Petroleum and Chemical Corporation
    • Changchao Hu
    • E21 - EARTH DRILLING MINING