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Yantai, CN
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last 30 patents
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Patent Grant
Preparation method for propylene epoxidation catalyst, and applicat...
Patent number
11,291,985
Issue date
Apr 5, 2022
Wanhua Chemical Group Co., Ltd.
Lei Wang
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Preparation method for olefin epoxidation catalyst and applications...
Patent number
11,213,811
Issue date
Jan 4, 2022
WANHUA CHEMICAL GROUP CO., LTD
Lei Wang
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method for preparing 3-aminomethyl-3,5,5-trimethyl cyclohexylamine
Patent number
9,624,162
Issue date
Apr 18, 2017
Wanhua Chemical Group Co., Ltd.
Changsheng Chen
C07 - ORGANIC CHEMISTRY
Patents Applications
last 30 patents
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Patent Application
Preparation Method For Propylene Epoxidation Catalyst, And Applicat...
Publication number
20200269228
Publication date
Aug 27, 2020
WANHUA CHEMICAL GROUP CO., LTD.
Lei Wang
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
PREPARATION METHOD FOR OLEFIN EPOXIDATION CATALYST AND APPLICATIONS...
Publication number
20200147599
Publication date
May 14, 2020
WANHUA CHEMICAL GROUP CO., LTD.
Lei WANG
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Method For Preparing 3-Aminomethyl-3,5,5-Trimethyl Cyclohexylamine
Publication number
20150315133
Publication date
Nov 5, 2015
WANHUA CHEMICAL GROUP CO., LTD.
Changsheng Chen
C07 - ORGANIC CHEMISTRY