Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9136699 | Dynamic damper and lighting driving circuit comprising the dynamic damper | Lon-Kou Chang, Li-Wei Yen, Jyun-Ji Chen | 2015-09-15 |
| 8941326 | AC-DC dual-use LED driving circuit | Yan Li, Jui-Chi Chang, Po-Yao Yeh | 2015-01-27 |
| 8575901 | Auto-selecting holding current circuit | Lon-Kou Chang, Chang-Yu Wu, Li-Wei Yen | 2013-11-05 |
| 8422253 | Circuit regulator and synchronous timing pulse generation circuit thereof | Lon-Kou Chang, Chang-Yu Wu | 2013-04-16 |
| 7715216 | Powering circuit of AC-DC converter | Chin Sun, Chih-Yu Wu | 2010-05-11 |
| 5725014 | Gas control valve | — | 1998-03-10 |
| 5165654 | Gas control valve | — | 1992-11-24 |