Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7199824 | Intelligent blemish control algorithm and apparatus | Michael Chang, Kou-Hu Tzou | 2007-04-03 |
| 6985180 | Intelligent blemish control algorithm and apparatus | Michael Chang, Kou-Hu Tzou | 2006-01-10 |