Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10995231 | Security pigment, luminescent polymer resin and method for producing same | Johann Kecht | 2021-05-04 |
| 10988629 | Core-shell particle-based security pigment and method for production thereof | Johann Kecht | 2021-04-27 |
| 10953684 | Pigment system, luminescent dye system, and value document | Johann Kecht, Thomas Giering | 2021-03-23 |
| 10870307 | Security pigment based on core-shell particles, and production method | Johann Kecht | 2020-12-22 |
| 10821766 | Core-shell particle-based security pigment, and production method | Johann Kecht | 2020-11-03 |
| 10576773 | Security element, method for producing the same and value document | Johann Kecht, Stephan Steinlein | 2020-03-03 |