Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11290822 | High-pitched loudspeaker | Peng Gao, Guoqiang Chai, Jie Chen, Yuping Xie | 2022-03-29 |
| 11279278 | Pedestrian warning device having grille cover | Xiafeng Xue, Guoqiang Chai, Shenggang Tao, Kaihua Qian | 2022-03-22 |