Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8687937 | Light-guide module | Kuo-Wen Chang | 2014-04-01 |
| 7869041 | Color measurement instrument | — | 2011-01-11 |
| 7167319 | Zoom lens system | Kuo-Wen Chang | 2007-01-23 |
| 7145731 | Stepwise variable zoom lens system | Kuo-Wen Chang | 2006-12-05 |
| 7046453 | Stepwise variable zoom lens system | Kuo-Wen Chang | 2006-05-16 |