Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12252061 | Container locking device and piggyback transport vehicle | Heping Zheng, Meng Wang, Zhihong Bian, Hongkun Wang, Wengang Wang +9 more | 2025-03-18 |
| 10689011 | Wagon and vehicle body assembly thereof | Baichuan He, Zhenguo Wu, Lei Yu | 2020-06-23 |
| 10352083 | Compartment and bottom door thereof | Lei Yu, Shengkun Wang, Yong Fu, Shuang Yang | 2019-07-16 |
| 9061688 | Bottom door device and hopper car having the same | Linghan Yue, Shuang Yang, Baichuan He, Lei Yu, Zhigang Li +2 more | 2015-06-23 |
| 8939088 | Bottom door opening-closing mechanism, bottom door device and drop-bottom hopper car | Linghan Yue, Baichuan He, Shuang Yang, Lei Yu | 2015-01-27 |