Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8749532 | Pen-like optical input device | Sheau-Lin Li, Tsu-Nan Lee | 2014-06-10 |
| 8531436 | Specific wavelength selecting method for optical input device and optical input device thereof | Tsu-Nan Lee, Sheau-Lin Li | 2013-09-10 |
| 8049726 | Optical trace detecting module | — | 2011-11-01 |
| 7675022 | Reflecting optical trace detecting module having an optical path diverting element | Yu-Lung Yao | 2010-03-09 |