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Jun Qiao

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  • Langfang, CN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Oil shale exploitation method
    • Patent number 9,382,789
    • Issue date Jul 5, 2016
    • ENN COAL GASIFICATION MINING CO.
    • Feng Chen
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...

Patents Applicationslast 30 patents

  • Information Patent Application

    Oil Shale Exploitation Method
    • Publication number 20140352957
    • Publication date Dec 4, 2014
    • ENN COAL GASIFICATION MINING CO.
    • Feng Chen
    • E21 - EARTH DRILLING MINING