Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12356136 | Vehicle-mounted woofer device and design method therefor | Guoqiang Chai | 2025-07-08 |
| 11279278 | Pedestrian warning device having grille cover | Jianming Zhou, Guoqiang Chai, Shenggang Tao, Kaihua Qian | 2022-03-22 |