Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7395604 | Laser level with temperature control device and temperature control method thereof | Pie-Yau Chien, Hua-Tang Liu, Yong-ce Qi, Zhang Jian, Yue-Ye Chen | 2008-07-08 |
| 7228635 | Laser tilt apparatus and the method thereof | Zhang Jian, Yue-Ye Chen, Yong-ce Qi, Hua-Tang Liu, Han Lu | 2007-06-12 |