Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9447544 | Security feature having several components | Thomas Giering, Stephan Steinlein | 2016-09-20 |
| 9409434 | Security feature | Kai Uwe Stock, Stephan Steinlein | 2016-08-09 |
| 9327542 | Value document, method for checking the presence of same and value document system | Wolfgang Rauscher, Stephan Steinlein | 2016-05-03 |
| 8871299 | Solid particles having a silicate coating | Stephan Steinlein | 2014-10-28 |