Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10924729 | Method and device for calibration | Li Yu, Wang Miao | 2021-02-16 |
| 10872439 | Method and device for verification | Li Yu, Wang Miao | 2020-12-22 |
| D792519 | Writing instrument | Franck Vadenne | 2017-07-18 |
| D779592 | Writing instrument | Franck Vadenne | 2017-02-21 |