Xiaonan SHI

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Hong Kong, CN

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Patents Grantslast 30 patents

Information Patent Grant
Preparation of hand-carry gravity-driven water filter with high thr...
- Patent number 11,241,660
- Issue date Feb 8, 2022
- Versitech Limited
- Jianqiang Wang
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

Patents Applicationslast 30 patents

Information Patent Application
PREPARATION OF HAND-CARRY GRAVITY-DRIVEN WATER FILTER WITH HIGH THR...
- Publication number 20190168172
- Publication date Jun 6, 2019
- The University of Hong Kong
- Jianqiang WANG
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE