Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12410824 | Hydraulic oil-circuit system and hydraulic jack | Xinfa Du, Songfeng Wang, Binhao Ruan | 2025-09-09 |
| D1079184 | Hydraulic jack | Hanxin Zhang, Yiming Wang, Binhao Ruan | 2025-06-10 |
| 12103828 | Winch, rope guide and transmission device having clutch function | Xinfa Du, Songfeng Wang, Yiming Wang, Tao He, Hongliang Xu | 2024-10-01 |
| 12084323 | Winch, rope guide and transmission device having clutch function | Xinfa Du, Songfeng Wang, Yiming Wang, Tao He, Hongliang Xu | 2024-09-10 |
| 11713223 | Winch, rope guide and transmission device having clutch function | Xinfa Du, Songfeng Wang, Yiming Wang, Tao He, Hongliang Xu | 2023-08-01 |
| 11702012 | Vehicle running board apparatus and retractable device thereof | Xinfa Du, Qi Zhang, Songfeng Wang, Yiming Wang, Tao He +1 more | 2023-07-18 |
| 11414017 | Vehicle step apparatus and vehicle | Zhaobo Qing, Huizhong Yang, Xinfa Du, Qi Zhang, Songfeng Wang +3 more | 2022-08-16 |
| 11376918 | Adjustment device, adjustor and shock absorber | Songfeng Wang, Xinfa Du, Yiming Wang, Hongliang Xu, Tao He | 2022-07-05 |
| 11198394 | Vehicle running board apparatus and retractable device thereof | Xinfa Du, Qi Zhang, Songfeng Wang, Yiming Wang, Tao He +1 more | 2021-12-14 |
| 10272842 | Running board device and vehicle having the same | Xinfa Du, Yiming Wang, Tao He, Qi Zhang, Xing Fan +1 more | 2019-04-30 |
| 9669767 | Vehicle step apparatus | Xinfa Du, Qi Zhang | 2017-06-06 |