Duoshan Zhao

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Process of butadiene-1, 3 extraction
- Patent number 7,994,378
- Issue date Aug 9, 2011
- Minghua Wang
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
PROCESS OF BUTADIENE-1, 3 EXTRACTION
- Publication number 20090234172
- Publication date Sep 17, 2009
- Minghua Wang
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Technology to improve yield and capacity of the butadiene extractio...
- Publication number 20070149840
- Publication date Jun 28, 2007
- Minghua Wang
- C07 - ORGANIC CHEMISTRY