Xiaogao Liu

Follow

Person

Beijing, CN

People

Patents Grantslast 30 patents

Information Patent Grant
Light colored modified isocyanate mixture and preparation method th...
- Patent number 11,034,651
- Issue date Jun 15, 2021
- Wanhua Chemical Group Co., Ltd.
- Ye Zhou
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for treating reverse osmosis concentrated water
- Patent number 10,696,574
- Issue date Jun 30, 2020
- Wanhua Chemical Group Co., Ltd.
- Hongke Zhang
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Method for replacement of phosgene synthesis column catalyst
- Patent number 10,046,289
- Issue date Aug 14, 2018
- WANHUA CHEMICAL GROUP CO., LTD
- Hongke Zhang
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Method for treating waste saline water produced in production proce...
- Patent number 9,802,848
- Issue date Oct 31, 2017
- Wanhua Chemical (Ningbo) Co., Ltd.
- Hongke Zhang
- C01 - INORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
A Light Colored Modified Isocyanate Mixture And Preparation Method...
- Publication number 20200283375
- Publication date Sep 10, 2020
- WANHUA CHEMICAL GROUP CO., LTD.
- Ye Zhou
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Method For Treating Reverse Osmosis Concentrated Water
- Publication number 20190202724
- Publication date Jul 4, 2019
- WANHUA CHEMICAL GROUP CO., LTD.
- Hongke Zhang
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
METHOD FOR REPLACEMENT OF PHOSGENE SYNTHESIS COLUMN CATALYST
- Publication number 20170348661
- Publication date Dec 7, 2017
- WANHUA CHEMICAL GROUP CO., LTD.
- Hongke ZHANG
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
METHOD FOR TREATING WASTE SALINE WATER PRODUCED IN PRODUCTION PROCE...
- Publication number 20120168375
- Publication date Jul 5, 2012
- Beijing University of Chemical Technology
- Hongke Zhang
- C01 - INORGANIC CHEMISTRY