Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11041467 | Backflow preventer and engine EGR system | Wei Li, Junlong Liu, Zhijie Li, Jie Pan, Chuntao Liu +1 more | 2021-06-22 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11041467 | Backflow preventer and engine EGR system | Wei Li, Junlong Liu, Zhijie Li, Jie Pan, Chuntao Liu +1 more | 2021-06-22 |