Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9228133 | Method for refining oil | Chiung-Fang Liu, Chih-Hao Chen, Chih-Ching Chen, Ju-Shiou Chen, Ying-Hsi Chang +2 more | 2016-01-05 |
| 5210678 | Chain-type discharge wire for use in an electrostatic precipitator | Yeong-Chang Lain, Rey-Chein Chang | 1993-05-11 |