Shujie Ren

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Yantai, CN

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Patents Grantslast 30 patents

Information Patent Grant
Supported catalyst used for synthesizing polyether amine, and manuf...
- Patent number 11,045,794
- Issue date Jun 29, 2021
- Wanhua Chemical Group Co., Ltd.
- Shujie Ren
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Catalyst for aminating polyether polyol and preparation method ther...
- Patent number 10,814,314
- Issue date Oct 27, 2020
- Wanhua Chemical Group Co., Ltd.
- Congying Zhang
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Supported Catalyst Used For Synthesizing Polyether Amine, And Manuf...
- Publication number 20190201878
- Publication date Jul 4, 2019
- WANHUA CHEMICAL GROUP CO., LTD.
- Shujie Ren
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
CATALYST FOR AMINATING POLYETHER POLYOL AND PREPARATION METHOD THER...
- Publication number 20180318806
- Publication date Nov 8, 2018
- WANHUA CHEMICAL GROUP CO., LTD.
- Congying Zhang
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL