Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10308062 | Optical anti-counterfeiting element and optical anti-counterfeiting product utilizing the same | Jun Zhu, Baoli Zhang, Chunhua Hu, Xinyi Li | 2019-06-04 |
| 9844969 | Optically variable security threads and stripes | Gebhard Ritter, Raynald Demange, Pierre Degott, Yuanqi Wu, Fangyi Sun +2 more | 2017-12-19 |
| 9701152 | Optically variable security threads and stripes | Gebhard Ritter, Pierre Degott, Fangyi Sun, Weiru Wang, Chunhua Hu +1 more | 2017-07-11 |