Issued Patents 2025
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12427802 | Optical anti-counterfeiting element and optical anti-counterfeiting product | Weiwei Zhang, Chunhua Hu | 2025-09-30 |
| 12350951 | Optical anti-counterfeiting element and anti-counterfeiting product | Baoli Zhang, Weiwei Zhang, Jun Zhu | 2025-07-08 |
| 12304231 | Optical anti-counterfeiting element and manufacturing method therefor | Chunhua Hu, Jun Zhu, Weiwei Zhang | 2025-05-20 |
| 12293252 | Encoding element and anti-counterfeiting product | Dong Yang | 2025-05-06 |
| 12257857 | Optical anti-counterfeiting element and manufacturing method thereof | Weiwei Zhang, Jun Zhu | 2025-03-25 |