Jiajia Zhang

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Guiyang, CN

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Patents Grantslast 30 patents

Information Patent Grant
Method for preparing nanofiltration membrane and nanofiltration mem...
- Patent number 12,201,947
- Issue date Jan 21, 2025
- Vontron Technology Co., Ltd.
- Yan Jin
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

Patents Applicationslast 30 patents

Information Patent Application
NANOFILTRATION MEMBRANE PREPARATION METHOD, AND NANOFILTRATION MEMB...
- Publication number 20250073648
- Publication date Mar 6, 2025
- Vontron Technology Co., Ltd.
- Songmiao LIANG
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
METHOD FOR PREPARING NANOFILTRATION MEMBRANE AND NANOFILTRATION MEM...
- Publication number 20220331744
- Publication date Oct 20, 2022
- VONTRON MEMBRANE TECHNOLOGY CO., LTD
- Lijie Hu
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE