Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11937541 | Grass cutting head and grass trimmer using the same | Jianpeng Guo, Dehong Ren | 2024-03-26 |
| 11219159 | Grass trimmer | Feng Yuan, Jianpeng Guo, Zichun Tang | 2022-01-11 |
| 11134610 | Grass cutting head and grass trimmer using the same | Jianpeng Guo, Dehong Ren | 2021-10-05 |
| 10485165 | Grass trimmer | Feng Yuan, Jianpeng Guo, Zichun Tang | 2019-11-26 |
| D381879 | Spanner | — | 1997-08-05 |
| 5502625 | Multipurpose hand tool | — | 1996-03-26 |