Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12195347 | Method for regulating particle size of Prussian white | Changdong Li, Xueliu Xu, Genghao Liu, Dingshan Ruan | 2025-01-14 |
| 9969066 | Ratchet screwdriver | — | 2018-05-15 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12195347 | Method for regulating particle size of Prussian white | Changdong Li, Xueliu Xu, Genghao Liu, Dingshan Ruan | 2025-01-14 |
| 9969066 | Ratchet screwdriver | — | 2018-05-15 |