Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11055938 | Key and lock set | Yaowu Ma, Fen Ruan, Jun Ma, Pinzhen Huang, Qianjing Ma +1 more | 2021-07-06 |
| 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 |