Ruihua Cheng

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Yantai, CN

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Patents Grantslast 30 patents

Information Patent Grant
Composite catalyst, preparation process thereof, and process for ca...
- Patent number 10,369,559
- Issue date Aug 6, 2019
- WANHUA CHEMICAL GROUP CO., LTD
- Lei Qin
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
COMPOSITE CATALYST, PREPARATION PROCESS THEREOF, AND PROCESS FOR CA...
- Publication number 20150231623
- Publication date Aug 20, 2015
- WANHUA CHEMICAL GROUP CO., LTD.
- Lei Qin
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL