Issued Patents 2021
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11111825 | Hydraulic valve mechanism with variable valve opening times and internal combustion engine | Zongfa Xie, Kang Han | 2021-09-07 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11111825 | Hydraulic valve mechanism with variable valve opening times and internal combustion engine | Zongfa Xie, Kang Han | 2021-09-07 |