Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7998314 | Method for the production of paper, cardboard and card | Oliver Koch, Rainer Blum, Detlef Kannengiesser | 2011-08-16 |
| 7258902 | Chiral 3,4-dihydro-2H-pyran compounds | Robert Parker, Sylke Haremza, Frank Meyer, Volkmar Vill, Gunnar Gesekus | 2007-08-21 |
| 6850310 | Cholesteric layered material having improved color stability, and the production thereof | Norbert Schneider, Frank Meyer, Peter Blaschka, Sylke Haremza, Tilmann Hezel +2 more | 2005-02-01 |
| 6793986 | Polymerizable liquid crystals | Robert Parker, Peter Schuhmacher, Norbert Schneider, Sylke Haremza, Hans-Werner Schmidt +1 more | 2004-09-21 |
| 6712992 | Liquid-crystalline composition of matter | Sylke Haremza, Frank Meyer, Robert Parker, Kathrin Kürschner, Peter Schuhmacher +3 more | 2004-03-30 |
| 6699405 | Polymerizable liquid crystals | Robert Parker, Peter Schuhmacher, Norbert Schneider, Sylke Haremza, Hans-Werner Schmidt +1 more | 2004-03-02 |
| 6695977 | Use of chiral, uncharged metal compounds as dopants for liquid-crystalline materials | Sylke Haremza, Robert Parker, Kathrin Kürschner, Manfred Braun, Antje Hahn +1 more | 2004-02-24 |
| 6680390 | Use of substituted vinyl-tetrahydronaphthalenes and vinyl-benzotetrahydropyrans as light protection agents | Thorsten Habeck, Horst Westenfelder, Thomas Wilnsch | 2004-01-20 |
| 6616990 | Chiral 1, 3-dioxane compounds | Sylke Haremza, Frank Meyer, Robert Parker, Kathrin Kürschner, Volkmar Vill +1 more | 2003-09-09 |
| 6605235 | Cholesteric layered material having an improved color impression, and the production thereof | Frank Meyer, Norbert Schneider, Peter Heilmann, Volker Koch, Robert Parker +2 more | 2003-08-12 |
| 6603014 | Use of cyclic enamines as light protection agents | Thorsten Habeck, Thomas Wunsch, Horst Westenfelder | 2003-08-05 |
| 6569355 | Chiral compounds, and their use as chiral dopants for the preparation of cholesteric liquid-crystalline compositions | Sylke Haremza, Frank Meyer, Robert Parker, Volkmar Vill, Gunnar Gesekus | 2003-05-27 |
| 6524560 | Use of substituted vinyltetrahydronaphthalenes and vinyl-benzotetrahydropyrans as light protection agents | Thorsten Habeck, Horst Westenfelder, Thomas Wunsch | 2003-02-25 |
| 6485527 | Use of reactive dyes for dyeing hair | Manfred Patsch, Peter Hossel | 2002-11-26 |
| 6468444 | Chiral compounds and their use as chiral dopants for producing cholesteric liquid crystal compositions | Frank Meyer, Peter Schuhmacher | 2002-10-22 |
| 6413503 | Use of cyclic enamines as light protection agents | Thorsten Habeck, Thomas Wunsch, Horst Westenfelder | 2002-07-02 |
| 6410698 | Reactive dyes with a combination anchor | Manfred Patsch | 2002-06-25 |
| 6409995 | Use of amino-substituted hydroxybenzophenones as photostable UV filters in cosmetic and pharmaceutical preparations | Thorsten Habeck, Thomas Wunsch, Horst Westenfelder, Sylke Haremza, Thorsten Bach +1 more | 2002-06-25 |
| 6278025 | Process for the preparation of substituted dibenzoylmethane compounds | Thorsten Habeck | 2001-08-21 |
| 6159454 | Use of cholesteric liquid-crystalline polymers as UV screens in cosmetic and pharmaceutical preparations | Peter Schuhmacher | 2000-12-12 |
| 6159455 | Dimeric .alpha.-alkylstyrene derivatives as photostable UV filters in cosmetic and pharmaceutical preparations | Thorsten Habeck, Thomas Wunsch, Horst Westenfelder | 2000-12-12 |