Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6283509 | Data carrier with an optically variable element | Eckhard Braun, Johann Muller, Reinhard Plaschka | 2001-09-04 |
| 6036233 | Data carrier with an optically variable element | Eckhard Braun, Johann Muller, Reinhard Plaschka | 2000-03-14 |