Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11164711 | DC contactor with dual micro switches | Songsheng Chen, Shuming Zhong | 2021-11-02 |
| 10854410 | High-voltage direct-current relay and assembly method therefor | Shuming Zhong | 2020-12-01 |
| 10068731 | Framework of relay and relay | Shuming Zhong | 2018-09-04 |