Daowen Lu

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Ningbo, CN

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Patents Grantslast 30 patents

Information Patent Grant
Loose-proof structure of a filter cartridge shell
- Patent number 8,623,207
- Issue date Jan 7, 2014
- Zhejiang Qinyuan Water Treatment S. T. Co. Ltd.
- Xiuyou Ye
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Loose-proof structure of a filter cartridge shell
- Publication number 20120067804
- Publication date Mar 22, 2012
- Zhejiang Qinyuan Water Treatment S. T. Co., Ltd.
- Xiuyou Ye
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL