Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8683927 | Railroad car wheel truck | Mingdao Sun, Yong Xu, Baolei Wang, Yongjiang LI, Hui Luo +1 more | 2014-04-01 |
| 8636416 | Lower side bearing for railroad car wheel truck | Mingdao Sun, Yong Xu, Baolei Wang | 2014-01-28 |