Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8297756 | Illumination device | Wei Ouyang | 2012-10-30 |
| 7785403 | Air purifier | Wei Ouyang | 2010-08-31 |
| 7530706 | LED lighting apparatus with fast changing focus | Wei Ouyang | 2009-05-12 |
| 6637577 | Banknote scope | Liming Chao | 2003-10-28 |