Issued Patents All Time
Showing 1–25 of 41 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6732961 | Method of producing platelets | Horst Leigeber, Adolf Gurtner, Volker Stanjek | 2004-05-11 |
| 6423246 | Thermostable pigments, films and effect coatings, and mixtures for their production | Michael Kasch, Jurgen Kupfer | 2002-07-23 |
| 6224664 | Mixture comprising pigments having a liquid-crystalline structure with a chiral phase and its use | Christoph Muller-Rees, Eckhard Hanelt, Jurgen Kupfer, Horst Leigeber | 2001-05-01 |
| 6071438 | Process for the production of three-dimensionally crosslinked polymeric materials having broad cholesteric reflection bands, and filters, reflectors and polarizers produced by this process | Horst Leigeber, Eckhard Hanelt | 2000-06-06 |
| 6057008 | Process for broadening cholesteric reflection bands of photopolymerizable cholesteric liquid crystals, and optical elements produced by this process | Georg Schwalb, Mechthild Kopf | 2000-05-02 |
| 6040411 | Low glass temperature organosiloxanes | Norman Haberle, Jurgen Kupfer | 2000-03-21 |
| 5827449 | Liquid-crystal mixtures, process for their preparation and their use | Eckhard Hanelt, Christian Schierlinger | 1998-10-27 |
| 5695680 | Liquid crystalline doristerol-containing organosiloxanes | Hans-Peter Weitzel, Robert Maurer | 1997-12-09 |
| 5683622 | Optical elements having color-selective and polarization-selective reflection containing LC pigments, and the production of these elements | Oliver Kratzschmar, Thilo Gebhard, Silvia Ehmann | 1997-11-04 |
| 5682212 | Optical elements having image-forming, color- and polarization-selective reflection and containing cholesteric liquid crystals, and the preparation and use of these elements | Robert Maurer, Stefan Beiergroesslein | 1997-10-28 |
| 5641850 | Process for the preparation of liquid-crystalline polyorganosiloxanes containing (meth)acryloxy groups | Juergen Stohrer, Hans-Joachim Luckas | 1997-06-24 |
| RE35462 | Silylated benzoic acid derivatives | Wolfgang Haas, Norman Haberle, Rainer Winkler | 1997-02-25 |
| 5502206 | Liquid-crystalline organosiloxanes containing chiral tartarimides | Ingo Zahn, Hans-Peter Weitzel | 1996-03-26 |
| 5442025 | Organosilsesquioxanes having at least one mesogenic side group | Peter Spes, Christian Freyer, Mechthild Hessling | 1995-08-15 |
| 5399290 | Liquid crystals with (polysila) alkyl wing groups | Norman Haberle, Benno Krueger, Ingo Zahn | 1995-03-21 |
| 5362315 | Pigments whose color depends on the viewing angle, their preparation and use | Christoph Muller-Rees, Robert Maurer, Jürgen Stohrer, Silvia Jung, Franz Csellich | 1994-11-08 |
| 5360899 | Cyclodextrin polymers and process for their preparation | Peter Nussstein, Guenther Staudinger, Wolfram Steinert, Wolfgang Schmitt-Sody | 1994-11-01 |
| 5359439 | Optical elements based on liquid-crystalline substances with no birefringence in a non-perpendicular direction and a process for their preparation | Alfred Miller, Horst Leigeber | 1994-10-25 |
| 5357012 | Water-insoluble cyclodextrin polymers and processes for their preparation | Peter Nussstein, Guenther Staudinger, Wolfgang Schmitt-Sody | 1994-10-18 |
| 5304667 | Cyclosiloxanes containing mesogenic side groups | Norman Haeberle, Wolfgang Haas | 1994-04-19 |
| 5301045 | Helical liquid crystalline element which produces linear polarized light | Alfred Miller, Horst Leigeber, Christoph Brauchle, Andreas Petri | 1994-04-05 |
| 5277838 | Silylated benzoic acid derivatives | Wolfgang Haas, Norman Haberle, Rainer Winkler | 1994-01-11 |
| 5231206 | Cyclic organosiloxanes having nonlinear optical properties | Peter Spes, Mechthild HeBling | 1993-07-27 |
| 5221759 | Cyclosiloxanes containing mesogenic side groups | Norman Haeberle, Wolfgang Haas | 1993-06-22 |
| 5211877 | Liquid-crystalline polyorganosiloxanes containing (meth) acryloxy groups | Dirk Andrejewski, Magdi Gohary, Hans-Joachim Luckas, Rainer Winkler | 1993-05-18 |