Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9975370 | Multi-layer body and method for the production thereof | Reto Karrer Walker, Andreas Schilling, Rene Staub, Christina Streb | 2018-05-22 |
| 4984824 | Document with an optical diffraction safety element | Gregor Antes | 1991-01-15 |