Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6819494 | Lens-implanted optical sheet and method for manufacturing the same | Guang-Tau Sung | 2004-11-16 |
| 6680010 | Lightguide and method for manufacturing the same | Guang-Tau Sung | 2004-01-20 |