Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6874269 | Connecting device for weapon accessory | Tony K. T. Chen, Ming-Chung Chiu, Chao WU | 2005-04-05 |
| 6739062 | Universal angle means | Der-Shyang Jan | 2004-05-25 |
| D489469 | Electric torch | — | 2004-05-04 |
| D480493 | Electric torch | — | 2003-10-07 |