Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7316240 | Exhaust system and mini-exhaust static pressure controlling apparatus thereof | Yung-Dar Chen, Dar-Rung Kuo, Ming-Chien Wen, Ming-Tsong Wang | 2008-01-08 |
| 7285147 | Air supply systems and pressure adjustment devices for use therewith | Yung-Dar Chen, Jheng-Long Chou, Tung-Li Wu, Ming-Wen Huang | 2007-10-23 |
| 7025809 | Dual-type air purification system | Yung-Dar Chen, Yen-Chun Wang | 2006-04-11 |
| 6863716 | Trap-type air purification system | Yung-Dar Chen, Yen-Chun Wang | 2005-03-08 |