Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10640133 | Connecting rod type two-level locking device, hopper car bottom door and hopper car | Chunjiang Shi, Qiangjun Jiang, Fengwei Liu, Baolei Wang, Wenliang Liu +4 more | 2020-05-05 |
| 9789883 | Two-level locking device, hopper car bottom door and hopper car | Chunjiang Shi, Qiangjun Jiang, Fengwei Liu, Baolei Wang, Wenliang Liu +4 more | 2017-10-17 |
| 8689701 | Railroad car wheel truck | Yong Xu, Baolei Wang, Yongjiang LI | 2014-04-08 |
| 8683927 | Railroad car wheel truck | Yong Xu, Baolei Wang, Yongjiang LI, Hui Luo, Wanlu Gong +1 more | 2014-04-01 |
| 8636416 | Lower side bearing for railroad car wheel truck | Yong Xu, Baolei Wang, Wanlu Gong | 2014-01-28 |