Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11065905 | Method for the insertion of guilloche patterns, method for the extraction of guilloche patterns, method for the authentication of these guilloche patterns and devices for implementation | Joseph Leibenguth, Maxime Carre, Mohamed Bouabdellah | 2021-07-20 |
| 8471880 | Method and device for marking a surface using controlled periodic nanostructures | Eric Audouard, Alain Foucou, Jean-Pierre Massicot, Zbigniew Sagan, Benjamin Dusser +1 more | 2013-06-25 |