Weizheng Dong

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Guard catalyst and a process for its preparation
- Patent number 6,673,741
- Issue date Jan 6, 2004
- China Petroleum and Chemical Corporation
- Xiaohong Kang
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Guard catalyst and a process for its preparation
- Publication number 20020065193
- Publication date May 30, 2002
- Xiaohong Kang
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL