Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10843571 | Repairable sliding plate of pantograph of electric locomotive and method for making the same | Guozheng Ma, Haidou Wang, Yiwen Wang, Pengfei He, Shuying Chen +3 more | 2020-11-24 |
| 10682682 | Device for performing strengthening treatment on tooth root of gear | Gang Wang, Haidou Wang | 2020-06-16 |