Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11766907 | Road-rail dual-purpose vehicle | Haiping Hu, Hui Luo, Danyan Liu, Fengwei Liu, Ziming Li +5 more | 2023-09-26 |
| 10640133 | Connecting rod type two-level locking device, hopper car bottom door and hopper car | Chunjiang Shi, Mingdao Sun, Qiangjun Jiang, Fengwei Liu, Baolei Wang +4 more | 2020-05-05 |
| 10161468 | Two-stage stiffness type elastomer combined device | Zhixiong Yan, Liangwei Zhang, Hong Cui, Fengwei Liu, Wenliang Liu +2 more | 2018-12-25 |
| 9919718 | Variable stiffness positioning device for railway vehicle bogie axle box | Zhixiong Yan, Liangwei Zhang, Hong Cui, Fengwei Liu, Wenliang Liu +3 more | 2018-03-20 |
| 9789883 | Two-level locking device, hopper car bottom door and hopper car | Chunjiang Shi, Mingdao Sun, Qiangjun Jiang, Fengwei Liu, Baolei Wang +4 more | 2017-10-17 |