Hongtao Liu

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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
UNDERGROUND GASIFICATION IGNITION METHOD
- Publication number 20160251950
- Publication date Sep 1, 2016
- ENN COAL GASIFICATION MINING CO., LTD.
- Feng CHEN
- E21 - EARTH DRILLING MINING
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