| 8940189 |
Intensely coloured and/or optically variable pigments having an electrically conductive core |
Matthias Kuntz, Reinhold Rueger |
2015-01-27 |
| 8642161 |
Optically variable security element |
Matthias Kuntz, Dieter Heinz, Ute Honeit |
2014-02-04 |
| 8540812 |
Machine-readable security element for security products |
Matthias Kuntz, Oliver Muth, Manfred Paeschke, Jakob Kuen |
2013-09-24 |
| 8454861 |
Optically variable pigments of high electrical conductivity |
Matthias Kuntz, Reinhold Rueger |
2013-06-04 |
| 8039094 |
Machine-readable security element for security products |
Matthias Kuntz, Oliver Muth, Manfred Paeschke, Jakob Kuen |
2011-10-18 |
| 7713616 |
Dual security mark |
Matthias Kuntz, Andreas Walter |
2010-05-11 |
| 6521688 |
Laser-markable plastics |
Rainer Linzmeier, Frank Prissok |
2003-02-18 |
| 6214917 |
Laser-markable plastics |
Rainer Linzmeier, Frank Prissok |
2001-04-10 |
