Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7401817 | Invisible, machine-detectable security marking, production of the security marking, and security system comprising this security marking | Christoph Muller-Rees, Horst Leigeber, Georg Schwalb | 2008-07-22 |
| 6570648 | Machine-detectable security marking with an increased level of proof against forgery, production of the security marking, and security system comprising this security marking | Christoph Muller-Rees, Horst Leigeber, Georg Schwalb | 2003-05-27 |
| 6423246 | Thermostable pigments, films and effect coatings, and mixtures for their production | Michael Kasch, Franz-Heinrich Kreuzer | 2002-07-23 |
| 6358574 | Liquid-crystalline silicones having increased UV stability | Norman Haberle, Horst Leigeber | 2002-03-19 |
| 6224664 | Mixture comprising pigments having a liquid-crystalline structure with a chiral phase and its use | Christoph Muller-Rees, Eckhard Hanelt, Franz-Heinrich Kreuzer, Horst Leigeber | 2001-05-01 |
| 6152890 | Method and device for the recording, presentation and automatic classification of biomechanical load variables measured on a freely moving test person during a work shift | Rolf-Peter Ellegast, Dietmar Reinert | 2000-11-28 |
| 6040411 | Low glass temperature organosiloxanes | Norman Haberle, Franz-Heinrich Kreuzer | 2000-03-21 |
| 5385690 | Liquid-crystalline elastomers or thermoset materials having a fixed anisothropic network structure | Heino Finkelmann | 1995-01-31 |