Issued Patents All Time
Showing 25 most recent of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6899824 | Liquid-crystalline composition for printing inks, coatings and counterfeit-proof marking of articles | Frank Meyer, Hiroki Ishida, Horst Neumann | 2005-05-31 |
| 6800337 | Thermal insulating coating | Karl Siemensmeyer, Frank Meyer, Norbert Schneider, Hiroki Ishida | 2004-10-05 |
| 6793986 | Polymerizable liquid crystals | Frank Prechtl, Robert Parker, Norbert Schneider, Sylke Haremza, Hans-Werner Schmidt +1 more | 2004-09-21 |
| 6773766 | Utilization of polymerizable liquid crystal substances for the production of optical components | Frank Meyer, Norbert Schneider | 2004-08-10 |
| 6733689 | Liquid-crystalline composition for printing inks, coatings and counterfeit-proof marking of articles | Frank Meyer, Hiroki Ishida, Horst Neumann | 2004-05-11 |
| 6712992 | Liquid-crystalline composition of matter | Frank Prechtl, Sylke Haremza, Frank Meyer, Robert Parker, Kathrin Kürschner +3 more | 2004-03-30 |
| 6699405 | Polymerizable liquid crystals | Frank Prechtl, Robert Parker, Norbert Schneider, Sylke Haremza, Hans-Werner Schmidt +1 more | 2004-03-02 |
| 6656543 | Cholesteric layered material, and the production thereof | Norbert Schneider, Volker Richter, Wolfgang Best, Albert Kohl, Peter Blaschka +1 more | 2003-12-02 |
| 6605235 | Cholesteric layered material having an improved color impression, and the production thereof | Frank Meyer, Frank Prechtl, Norbert Schneider, Peter Heilmann, Volker Koch +2 more | 2003-08-12 |
| 6597426 | Flat element with a cholesteric liquid crystal structure | Karl Siemensmeyer, Markus Bröcher, Christian Kuckertz, Werner Mormann | 2003-07-22 |
| 6582781 | Multilayer cholesteric pigments | Norbert Schneider, Volker Richter, Harald Keller, Gunter Bettinger, Peter Blaschka +3 more | 2003-06-24 |
| 6531221 | Multilayer cholesteric pigments | Norbert Schneider, Raimund Schmid, Wolfgang Best, Peter Blaschka, Frank Meyer | 2003-03-11 |
| 6468444 | Chiral compounds and their use as chiral dopants for producing cholesteric liquid crystal compositions | Frank Meyer, Frank Prechtl | 2002-10-22 |
| 6410130 | Coatings with a cholesteric effect and method for the production thereof | Norbert Schneider, Volker Richter, Harald Keller, Peter Blaschka, Gunter Bettinger +5 more | 2002-06-25 |
| 6337131 | Core-shell particles and preparation and use thereof | Robert Rupaner, Reinhold J. Leyrer | 2002-01-08 |
| 6335462 | Polymerizable oligomesogenes | Karl-Heinz Etzbach, Karl Siemensmeyer | 2002-01-01 |
| 6291629 | Chirally nematic polyesters | Hans R. Kricheldorf, Thorsten Krawinkel, Andreas Gerken | 2001-09-18 |
| 6159454 | Use of cholesteric liquid-crystalline polymers as UV screens in cosmetic and pharmaceutical preparations | Frank Prechtl | 2000-12-12 |
| 6156866 | Chiral nematic polycarbonates | Hans R. Kricheldorf, Shih-Jieh Sun | 2000-12-05 |
| 6136225 | Polymerizable liquid-crystalline compounds | Frank Meyer, Karl Siemensmeyer, Karl-Heinz Etzbach | 2000-10-24 |
| 6136251 | Process for producing pigment particles of defined shape and size | Karl-Heinz Etzbach, Harald Keller, Reinhold J. Leyrer, Tillmann Faust, Karl Siemensmeyer | 2000-10-24 |
| 6099750 | Use of organic compounds in the plastic columnar discotic liquid-crystal phase for transport of electric charges | Jurgen Simmerer, Karl-Heinz Etzbach, Karl Siemensmeyer, Wolfgang Paulus, Birgit Glüsen +4 more | 2000-08-08 |
| 6060042 | Use of cholesteric, liquid-crystalline compositions as UV filters in cosmetic and pharmaceutical preparations | Norbert Schneider, Horst Westenfelder, Sylke Haremza, Thorsten Habeck, Frank Meyer | 2000-05-09 |
| 6036883 | Use of low molecular-weight or polymeric organic compounds which are present in the columnar-helical phase and have liquid-crystalline properties | Wolfgang Paulus, Lukas Haussling, Karl Siemensmeyer, Karl-Heinz Etzbach, Dieter Adam +4 more | 2000-03-14 |
| 5942030 | Pigment preparation | Karl Siemensmeyer, Juan Antonio Gonzalez Gomez, Norbert Schneider | 1999-08-24 |