Qun Yu

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Nan'an City, CN

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Patents Grantslast 30 patents

Information Patent Grant
Flow limiting device with a back flow prevention
- Patent number 9,822,889
- Issue date Nov 21, 2017
- Fujian Xihe Sanitary Ware Technology Co., Ltd.
- Xiaofa Lin
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
Dual-adjustment flow limiting device
- Publication number 20170218609
- Publication date Aug 3, 2017
- Xiaofa Lin
- E03 - WATER SUPPLY SEWERAGE
Information Patent Application
FLOW LIMITING DEVICE WITH A BACK FLOW PREVENTION
- Publication number 20170009899
- Publication date Jan 12, 2017
- FUJIAN XIHE SANITARY WARE TECHNOLOGY CO., LTD.
- Xiaofa LIN
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...