Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12006650 | Pile pouring structure based on informatization technology and pile structure | Genming Yang, Xingguo Liao | 2024-06-11 |
| 11360583 | Electromagnetic fountain pen | Yuanzhi Li | 2022-06-14 |
| 11287906 | Passive electromagnetic fountain pen | Yuanzhi Li | 2022-03-29 |
| 11256344 | Passive electromagnelic pen | Yuanzhi Li | 2022-02-22 |