Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11149621 | Exhaust pipe assembly and engine | Yangyang Zhang, Hongshuang He, Qingqing Zhang, Bin Hou, Chao Rong | 2021-10-19 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11149621 | Exhaust pipe assembly and engine | Yangyang Zhang, Hongshuang He, Qingqing Zhang, Bin Hou, Chao Rong | 2021-10-19 |