Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10797436 | Electrical connector structure adapted for a cigarette lighting device in vehicles | Yaowu Ma, Fen Ruan, Jun Ma, Qianjing Ma, Qianjia Ma +3 more | 2020-10-06 |
| 10529161 | Keys and locks | Yaowu Ma, Fen Ruan, Jun Ma, Qianjing Ma, Qianjia Ma +1 more | 2020-01-07 |