Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8780333 | Range finder | Chia-Chi Tang | 2014-07-15 |
| 8331021 | Optical sight having a coaxial illumination function | — | 2012-12-11 |
| 8132353 | Laser sight | Shang-Yung Liang, Chi-Shin Lin | 2012-03-13 |
| 8109031 | Electronic sight and manufacturing method thereof | Chia-Chi Tang | 2012-02-07 |