Yen-Chun Wang

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Taipei Hsien, TW

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Patents Grantslast 30 patents

Information Patent Grant
Dual-type air purification system
- Patent number 7,025,809
- Issue date Apr 11, 2006
- Taiwan Semiconductor Manufacturing Co., Ltd.
- Yung-Dar Chen
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Trap-type air purification system
- Patent number 6,863,716
- Issue date Mar 8, 2005
- Taiwan Semiconductor Manufacturing Co., Ltd
- Yung-Dar Chen
- F24 - HEATING RANGES VENTILATING

Patents Applicationslast 30 patents

Information Patent Application
Dual-type air purification system
- Publication number 20050126393
- Publication date Jun 16, 2005
- Yung-Dar Chen
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Trap-type air purification system
- Publication number 20040149134
- Publication date Aug 5, 2004
- Taiwan Semiconductor Manufacturing Co., Ltd.
- Yung-Dar Chen
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL