Lei Zhang

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Yantai, CN

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Patents Grantslast 30 patents

Information Patent Grant
Method for preparing branched polycarbonate with continuous two-pha...
- Patent number 9,683,078
- Issue date Jun 20, 2017
- Wanhua Chemical Group Co., Ltd.
- Lei Zhang
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
High-selectivity catalyst for production of high-quality gasoline f...
- Patent number 9,168,515
- Issue date Oct 27, 2015
- Wanhua Industrial Group Co., Ltd.
- Ye Wang
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Polycarbonate preparation method
- Patent number 9,062,154
- Issue date Jun 23, 2015
- Wanhua Chemical Group Co., Ltd.
- Lei Zhang
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR PREPARING BRANCHED POLYCARBONATE WITH CONTINUOUS TWO-PHA...
- Publication number 20160200864
- Publication date Jul 14, 2016
- WANHUA CHEMICAL GROUP CO., LTD.
- Lei Zhang
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
POLYCARBONATE PREPARATION METHOD
- Publication number 20140350198
- Publication date Nov 27, 2014
- WANHUA CHEMICAL GROUP CO., LTD.
- Lei Zhang
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
A HIGH-SELECTIVITY CATALYST FOR PRODUCTION OF HIGH-QUALITY GASOLINE...
- Publication number 20140018232
- Publication date Jan 16, 2014
- Ye Wang
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL