Issued Patents All Time
Showing 1–25 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5998563 | Photosensitive material for orientation of liquid crystal device and liquid crystal device thereof | Grit Pirwitz, Andrea Hohmuth, Yuriy Reznikov, Oleg Yaroshchuk, Igor Cerus | 1999-12-07 |
| 5824377 | Photosensitive material for orientation of liquid crystal device and liquid crystal device thereof | Grit Pirwitz, Andrea Hohmuth, Yuriy Reznikov, Oleg Yaroshchuk, Igor Cerus | 1998-10-20 |
| 4961876 | Liquid crystalline ferroelectric derivatives of branched acyclic alpha-chlorocarboxylic acids | Dietrich Demus, Wolfgang Weissflog, Kristina Mohr, Saskia Kohler, Kerstin Worm | 1990-10-09 |
| 4952699 | Liquid-crystalline, 2,5-disubstituted, 1,3,4-thiadiazoles with extended smectic C phases | Bak G Yong, Dietrich Demus, Horst Kresse, Annelore Madicke, Gerhard Pelzl +2 more | 1990-08-28 |
| 4874544 | Ferroelectric liquid crystals | Bak G Yong, Barth Petra, Demus Dietrich, Joachimi Detlev, Barbara Kampa +9 more | 1989-10-17 |
| 4734217 | Liquid crystalline 2,6-disubstituted-trans-1,3-dioxadecalins | Dietrich Demus, Carsten Tschierske, Maike Hettrich | 1988-03-29 |
| 4668426 | Liquid crystalline substances | Dietrich Demus, Reinhard Paschke, Adalbert Wiegeleben | 1987-05-26 |
| 4626375 | Liquid crystalline substances | Dietrich Demus, Roger Frach, Hans-Joachim Deutscher | 1986-12-02 |
| 4615824 | Mixing component for liquid crystal substances | Dietrich Demus, Gerhard Pelzl, Carsten Tschierske | 1986-10-07 |
| 4610805 | Nematic liquid crystal mixtures | Michael Schellenberger, Sabine Richter, Hans-Joachim Deutscher, Dietrich Demus | 1986-09-09 |
| 4601846 | Liquid crystal substances for the guest-host effect | Dietrich Demus, Gerhard Pelzl, Hartmut Enzenberg, Andreas Isenberg | 1986-07-22 |
| 4597892 | Liquid crystalline 2-substituted-5-(1-alkyl-piperid-4-yl)-1,3-dioxanes | Hans-Matthias Vorbrodt, Wilfried Fuchs, Adelbert Wiegeleben, Dietrich Demus | 1986-07-01 |
| 4585576 | Liquid-crystal nematic substances | Dietrich Demus, Sabine Richter, Hans-Joachim Deutscher, Adelbert Wiegeleben | 1986-04-29 |
| 4565881 | Liquid crystal substituted 1,3-dioxanes and mixtures containing them | Dietrich Demus, Hans-Matthias Vorbrodt, Horst Kresse, Wolfgang Weissflog | 1986-01-21 |
| 4560496 | Liquid crystalline nematic compounds | Dietrich Demus, Heinz Altmann, Michael Keil | 1985-12-24 |
| 4521327 | Nematic liquid crystals and method for production thereof | Dietrich Demus, Hans-Matthias Vorbrodt, Anton Hauser, Jörg Vogel | 1985-06-04 |
| 4486332 | Liquid crystalline nematic substances | Dietrich Demus, Hans-Matthias Vorbrodt, Sylvia Deresh | 1984-12-04 |
| 4438268 | Liquid crystal substances | Wolfgang Schafer, Hans-Joachim Deutscher, Dietrich Demus, Gerhard Pelzl | 1984-03-20 |
| 4421670 | Liquid crystal dihydrophenanthrene substances | Hans-Joachim Deutscher, Sabine Richter, Dietrich Demus, Ute Boettger | 1983-12-20 |
| 4363767 | Esters of 4-[2,2-dicyano-ethenyl]-phenols | Dietrich Demus, Wolfgang Weissflog, Rudolf Wolff, Horst Kresse | 1982-12-14 |
| 4358393 | Nematic liquid crystals of 5-cyano-2-[4-acyloxyphenyl]-pyrimidines and mixtures containing the same | Dietrich Demus, Sylvia Deresch | 1982-11-09 |
| 4358589 | Nematic liquid crystal compounds | Herrmann Schubert, Dietrich Demus, Frank Kuschel, Gerhard Pelzl, Hans-Ulrich Nothnikz +1 more | 1982-11-09 |
| 4356103 | Liquid crystals for electro-optical devices | Herrmann Schubert, Gerhard Pelzl, Dietrich Demus, Hans-Ulrich Nothni, Frank Kuschel | 1982-10-26 |
| 4348324 | Liquid crystalline substituted 1,3-dioxanes and mixtures containing these | Dietrich Demus, Hans-Mathias Vorbrodt, Horst Kresse, Wolfgang Weissflog | 1982-09-07 |
| 4348298 | Nematic liquid crystal mixtures | Rudolf Wolff, Gerhard Pelzl, Dietrich Demus | 1982-09-07 |