Yen Hao WEI

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Shanghai, CN

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Patents Grantslast 30 patents

Information Patent Grant
Anti-backflow device for fan unit
- Patent number 10,294,947
- Issue date May 21, 2019
- Celestica Technology Consultancy (Shanghai) Co., Ltd.
- Yen Hao Wei
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

Information Patent Application
ANTI-BACKFLOW DEVICE FOR FAN UNIT
- Publication number 20150211536
- Publication date Jul 30, 2015
- Celestica Technology Consultancy (Shanghai) Co., Ltd
- Yen Hao WEI
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...