Yang Wang

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Yantai, CN

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Patents Grantslast 30 patents

Information Patent Grant
Solvent refining method for isocyanate prepared by phosgene method...
- Patent number 9,840,462
- Issue date Dec 12, 2017
- Wanhua Chemical Group Co., Ltd.
- Hongke Zhang
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
SOLVENT REFINING METHOD FOR ISOCYANATE PREPARED BY PHOSGENE METHOD...
- Publication number 20170022152
- Publication date Jan 26, 2017
- WANHUA CHEMICAL GROUP CO., LTD.
- Hongke Zhang
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL