Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8069799 | Thread cutting device for a sewing machine | Shui-Chun Tseng | 2011-12-06 |
| 6306772 | Deep trench bottle-shaped etching using Cl2 gas | Ray C. Lee, Nien-Yu Tsai | 2001-10-23 |