Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10267427 | Spring adjusting device and valve assembly | Xiao Xiao, Yanwei Lei | 2019-04-23 |
| 9903501 | Valve assembly | Yanwei Lei, Xiaojuan Qin | 2018-02-27 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10267427 | Spring adjusting device and valve assembly | Xiao Xiao, Yanwei Lei | 2019-04-23 |
| 9903501 | Valve assembly | Yanwei Lei, Xiaojuan Qin | 2018-02-27 |