Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8069903 | Method and apparatus for sealing an ingot at initial startup | Kuang-O Yu | 2011-12-06 |
| 7926548 | Method and apparatus for sealing an ingot at initial startup | Kuang-O Yu | 2011-04-19 |