Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7404382 | Variable engine valve control system with pressure difference | Junjie Ling | 2008-07-29 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7404382 | Variable engine valve control system with pressure difference | Junjie Ling | 2008-07-29 |