Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11193446 | Needle-shaped cylinder liner and preparation method therefor, and coating liquid for preparing needle-shaped cylinder liner | Zhijun Liu, Zengjun DANG, Yong Wang, Qifei Hou | 2021-12-07 |
| 9239111 | Cylinder liner with high strength and wear resistance and manufacturing method thereof | Xiaocai Qin, Zhijun Liu, Wuhui Zou | 2016-01-19 |