Yigun Liu

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Toughened plastics and its preparation method
- Patent number 9,181,419
- Issue date Nov 10, 2015
- China Petroleum and Chemical Corporation
- Jinliang Qiao
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
Toughened plastics and its preparation method
- Publication number 20040077792
- Publication date Apr 22, 2004
- Jinliang Qiao
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...