Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10464524 | Alarming and unlocking device | Bo-Ruei Chen, Xiaojie Yu, Lijun Ma, Qing Tian, Huiqing Zhang +2 more | 2019-11-05 |
| 10207725 | Method and device for transmitting signal among compartments of train | Miao Wang, Huiqing Zhang, Qing Tian, Qingjun Han, Chanjuan XIAO +3 more | 2019-02-19 |