Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9104176 | Method for the production of a multi-color volume hologram, a document with such a hologram, and a volume hologram master | Guenther Dausmann | 2015-08-11 |
| 7034699 | Rain sensor, especially for a motor vehicle | Helmut Sautter, Armin Jerger, Frank Wolf, Gerhard Hochenbleicher, Vincent Thominet | 2006-04-25 |
| 6842271 | Rain sensor, in particular for a motor vehicle | Helmut Sautter, Armin Jerger, Frank Wolf, Gerhard Hochenbleicher, Vincent Thominet | 2005-01-11 |
| 6750465 | Device for evaluating diffractive authenticity features | Arnim Franz-Burgholz, Roland Gutmann, Harald Hoeppner, Thomas Loer, Detlef Martens +5 more | 2004-06-15 |
| 5943131 | Method for checking authenticity of a hologram and a reading device for the performance of the method | Gunther Dausmann | 1999-08-24 |
| 5943144 | Process for the manufacture of non-replicable holograms possessing authenticity features and a reading device to check authenticity | Gunther Dausmann, Klaus Gnadig | 1999-08-24 |