Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11230128 | Method for producing secure identification document with color portrait and secure identification document thereof | Song Zheng, Xiaohong Tang, Xiaojun Jiang, Yongbing Hu | 2022-01-25 |
| 11148448 | Method for producing color secure identification document and color secure identification document thereof | Song Zheng, Xiaohong Tang, Xiaojun Jiang, Yongbing Hu | 2021-10-19 |