Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12304759 | Automatic graphite conveying device and winding machine for spiral wound gasket | Kaijun Wu, Shuji Wu, Chulian Guan | 2025-05-20 |
| 9587801 | Zoom unit, a light engine having the zoom unit and an illuminating apparatus | WeiHuang Chen, Ai Ma, SiXiong Zeng | 2017-03-07 |
| 9441798 | Light source unit, a light engine having the light source unit and an illuminating apparatus | WeiHuang Chen, Al Ma, SiXiong Zeng | 2016-09-13 |