Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 6176770 | Grindstone having a vacuum system in a pin chuck stepper | Chung-Hsien Kao, Li-Chung Lee, Mei-Ling Chen | 2001-01-23 | $1,642,000 |
| 6125644 | Container of coolant | Shih-Hsun Chiu, Li-Chung Lee, Wei-Sheng Chia | 2000-10-03 | |
| 6021669 | Container of coolant | Shih-Hsun Chiu, Li-Chung Lee, Wei-Sheng Chia | 2000-02-08 |