Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7806554 | LED direct-plugging type multi-chip high power light source | Baoyan Chang, Zheng Xu | 2010-10-05 |
| 7686479 | LED flat-plate type multi-chip high power light source | Baoyan Chang, Zheng Xu | 2010-03-30 |