| 12403717 |
Method for producing a data carrier having a luminescent security element, and data carrier |
Thomas Giering, Thomas Happ, Johann Kecht, Kai Uwe Stock, Sina SCHOLZ-RIECKE |
2025-09-02 |
| 11148447 |
Intaglio printing ink, printing process and printed article |
Johann Kecht, Thomas Giering |
2021-10-19 |
| 10576773 |
Security element, method for producing the same and value document |
Johann Kecht, Axel Schlossbauer |
2020-03-03 |
| 10144242 |
Method for checking a value document, value document, use thereof, and value document system |
Thomas Giering, Johann Kecht, Wolfgang Rauscher |
2018-12-04 |
| 10040995 |
Alkali metal and alkaline earth metal niobates and tantalates as security feature substances |
Johann Kecht, Kai Uwe Stock |
2018-08-07 |
| 9908360 |
Security feature and method for producing a security feature |
Johann Kecht |
2018-03-06 |
| 9776450 |
Method for checking a value document, value document, use thereof, and value document system |
Thomas Giering, Johann Kecht, Wolfgang Rauscher |
2017-10-03 |
| 9540771 |
Security feature having several components |
Thomas Giering, Johann Kecht |
2017-01-10 |
| 9469145 |
Security feature having several components |
Thomas Giering, Johann Kecht |
2016-10-18 |
| 9453162 |
Alkali metal and alkaline earth metal niobates and tantalates as security feature substances |
Johann Kecht, Kai Uwe Stock |
2016-09-27 |
| 9447544 |
Security feature having several components |
Thomas Giering, Johann Kecht |
2016-09-20 |
| 9409434 |
Security feature |
Johann Kecht, Kai Uwe Stock |
2016-08-09 |
| 9327542 |
Value document, method for checking the presence of same and value document system |
Johann Kecht, Wolfgang Rauscher |
2016-05-03 |
| 8871299 |
Solid particles having a silicate coating |
Johann Kecht |
2014-10-28 |