Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6798511 | Imaging ellipsometry | Qiwen Zhan | 2004-09-28 |
| 6693711 | Ellipsometer using radial symmetry | Qiwen Zhan | 2004-02-17 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6798511 | Imaging ellipsometry | Qiwen Zhan | 2004-09-28 |
| 6693711 | Ellipsometer using radial symmetry | Qiwen Zhan | 2004-02-17 |