Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12071078 | Car mobile phone connection device | Fen Ruan, Jun Ma, Pinzhen Huang, Chiaki Summer Ma, Qianjia Ma +1 more | 2024-08-27 |
| 11790711 | Keys and locks | Fen Ruan, Jun Ma, Pinzhen Huang, Qianjing Ma, Qianjia Ma +1 more | 2023-10-17 |
| 11055938 | Key and lock set | Fen Ruan, Jun Ma, Pinzhen Huang, Qianjing Ma, Qianjia Ma +1 more | 2021-07-06 |
| 11056828 | Electrical connector structure adapted for vehicle cigarette lighter device | Fen Ruan, Jun Ma, Pinzhen Huang, Qianjing Ma, Qianjia Ma +3 more | 2021-07-06 |
| 10797436 | Electrical connector structure adapted for a cigarette lighting device in vehicles | Fen Ruan, Jun Ma, Pinzhen Huang, Qianjing Ma, Qianjia Ma +3 more | 2020-10-06 |
| 10529161 | Keys and locks | Fen Ruan, Jun Ma, Pinzhen Huang, Qianjing Ma, Qianjia Ma +1 more | 2020-01-07 |