Yubao Sun

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Tianjin, CN

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Patents Grantslast 30 patents

Information Patent Grant
High temperature carbon dioxide corrosion inhibitor
- Patent number 9,404,189
- Issue date Aug 2, 2016
- China National Offshore Oil Corporation
- Yongtao Sun
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...

Patents Applicationslast 30 patents

Information Patent Application
Oil Recovery Process with Composition-Adjustable Multi-Component Th...
- Publication number 20150136400
- Publication date May 21, 2015
- China Oilfield Services Limited
- Yongtao Sun
- E21 - EARTH DRILLING MINING
Information Patent Application
High Temperature Carbon Dioxide Corrosion Inhibitor
- Publication number 20150069301
- Publication date Mar 12, 2015
- China Oilfield Services Limited
- Yongtao Sun
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...