Issued Patents 2023
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11761853 | Engine piston and fatigue testing apparatus for engine piston | Haijun Liu, Fei Ma, Baoyu Liu, Lei Li | 2023-09-19 |
| 11649790 | Control method and apparatus applied to controller | Haijun Liu, Jixuan Huang | 2023-05-16 |