Issued Patents 2017
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9717128 | High-safety LED tube | Yu-Cheng Chang, Kuo-Chao Lin | 2017-07-25 |
| 9674910 | Filament simulation circuit for LED tube | Yu-Cheng Chang | 2017-06-06 |
| 9615421 | LED control circuit | Yu-Cheng Chang | 2017-04-04 |