Yuanhong Li

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Shaanxi Province, CN

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Patents Grantslast 30 patents

Information Patent Grant
High-energy gas fracture apparatus for through-tubing operations
- Patent number 7,819,180
- Issue date Oct 26, 2010
- Tong Oil Tools Co., Ltd.
- Zhihua Zhou
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
High-energy gas fracture apparatus for through-tubing operation
- Publication number 20090211746
- Publication date Aug 27, 2009
- Zhihua Zhou
- E21 - EARTH DRILLING MINING