Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7130128 | Lens for forming laser lines with uniform brightness | Chao-Chi Huang, Kevin Weng | 2006-10-31 |
| 6970297 | Lens for forming laser lines with uniform brightness | Chao-Chi Huang, Kevin Weng | 2005-11-29 |
| 6739062 | Universal angle means | Wun-Chun Liou | 2004-05-25 |
| D480319 | Laser edge | — | 2003-10-07 |
| 6481686 | Multifunctional turntable for a leveling device | — | 2002-11-19 |
| 6195902 | Laser extender | Tony K. T. Chen | 2001-03-06 |
| 6163969 | 3D laser leveler | Tony K. T. Chen | 2000-12-26 |
| 5905751 | Laser modules and methods of manufacturing same | Chao-Chi Huang, Tony K. T. Chen, Ming-Chung Chiu, Yu-Hsi Yang, Teng-Yuan Chien | 1999-05-18 |