Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11448168 | Exhaust gas recirculation system and engine | Qiang Zhan | 2022-09-20 |
| 11346266 | Engine exhaust aftertreatment device and method | Haihao Feng, Dong Qiu, Youqiang Xiao, Xinzheng Wang | 2022-05-31 |