Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9844969 | Optically variable security threads and stripes | Gebhard Ritter, Raynald Demange, Pierre Degott, Zhongdong Ye, Yuanqi Wu +2 more | 2017-12-19 |
| 9701152 | Optically variable security threads and stripes | Gebhard Ritter, Pierre Degott, Zhongdong Ye, Fangyi Sun, Chunhua Hu +1 more | 2017-07-11 |