Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE44429 | Light-emitting semiconductor device having enhanced brightness | Chih-Sung Chang, Tzer-Perng Chen, Pai-Hsiang Wang | 2013-08-13 |
| 6958496 | Light-emitting semiconductor device having enhanced brightness | Chih-Sung Chang, Chen Tzer-Perng | 2005-10-25 |