Issued Patents 2022
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11346055 | Method and device for protecting paper sheet | Xiwen Zhang, Wenzheng Shi | 2022-05-31 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11346055 | Method and device for protecting paper sheet | Xiwen Zhang, Wenzheng Shi | 2022-05-31 |