Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9987874 | Authenticity feature in the form of luminescent substances | Thomas Giering, Peter Kersten, Gregor Grauvogl | 2018-06-05 |
| 9878573 | Authenticity feature in the form of luminescent substances | Thomas Giering, Peter Kersten, Gregor Grauvogl | 2018-01-30 |
| 8616584 | Value document, production and verification of value documents | Ulrich Scholz, Gregor Grauvogl, Thomas Giering, Franz Muller, Klaus Thierauf | 2013-12-31 |
| 7999237 | Valuable document | Gerhard Schwenk, Gregor Grauvogl, Ulrich Scholz | 2011-08-16 |
| 5935693 | Data carrier | Gerhard Schwenk, Ulrich Scholz, Johannes Leist | 1999-08-10 |
| 5795379 | Pigments and a method for producing them | Gerhard Schwenk, Ulrich Scholz, Johannes Leist | 1998-08-18 |