Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11625732 | Method for authenticating an object, particularly a security element, and a security element | Benno Schmitzer, Michael Grau, Walter Kurz | 2023-04-11 |
| 11068681 | Verification of a security document | Michael Grau, Rene Staub, Michael Hoffmann | 2021-07-20 |
| 10019626 | Method for authenticating a security element, and optically variable security element | Andreas Schilling, Benno Schmitzer, Wayne Robert Tompkin, Jurgen Metzger, Ralf Wondratschek +1 more | 2018-07-10 |