Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11546697 | Balanced armature type speaker | Zhiqiang Zhang | 2023-01-03 |
| 11056828 | Electrical connector structure adapted for vehicle cigarette lighter device | Yaowu Ma, Fen Ruan, Jun Ma, Pinzhen Huang, Qianjing Ma +3 more | 2021-07-06 |
| 10797436 | Electrical connector structure adapted for a cigarette lighting device in vehicles | Yaowu Ma, Fen Ruan, Jun Ma, Pinzhen Huang, Qianjing Ma +3 more | 2020-10-06 |