Issued Patents All Time
Showing 26–50 of 151 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5804097 | Liquid-crystalline compounds | Paul Delavier, Andreas Schmidt, Karl Siemensmeyer, Gerhard Wagenblast | 1998-09-08 |
| 5798197 | 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, Dieter Adam, Juergen Simmerer +4 more | 1998-08-25 |
| 5798147 | Process for coating and printing substrates | Erich Beck, Frank Meyer, Ulrich Poth, Karl Siemensmeyer, Claudia Sierakowski +6 more | 1998-08-25 |
| 5789560 | Azo dyes with a coupling component of the aminothiazole series | Rudiger Sens | 1998-08-04 |
| 5785719 | Methine and Azo dye-containing dye mixtures | Rudiger Sens | 1998-07-28 |
| 5783649 | Polymerizable azo dyes with a thiophene structure | Stefan Beckmann, Rudiger Sens | 1998-07-21 |
| 5780629 | Polymerizable, chiral compounds and their use | Paul Delavier, Karl Siemensmeyer, Gerhard Wagenblast, Lothar Laupichler, Volkmar Vill | 1998-07-14 |
| 5777089 | Phenol derivatives, their preparation and their use, in particular in nonlinear optics | Stefan Beckmann, Rudiger Sens | 1998-07-07 |
| 5766679 | Chiral nematic polyesters | Karl Siemensmeyer, Frank Meyer, Hans R. Kricheldorf, Nicolas PROBST | 1998-06-16 |
| 5756753 | Methine and azamethine dyes based on naphthoquinones in nonlinear optics | Stefan Beckmann, Rudiger Sens | 1998-05-26 |
| 5744057 | Polymerizable, chiral compounds, and use thereof | Frank Meyer, Karl Siemensmeyer, Peter Schuhmacher | 1998-04-28 |
| 5738806 | Thienothienylazoanilines in nonlinear optics | Stefan Beckmann, Ruediger Sens | 1998-04-14 |
| 5736068 | Triphenylene compounds and preparation of discotic liquid crystalline crosslinked polymers | Lukas Haeussling, Dirk Funhoff, Karl Siemensmeyer, Friedrich Closs, Helmut Ringsdorf +1 more | 1998-04-07 |
| 5719288 | Pyridone dyes | Ruediger Sens, Volker Bach | 1998-02-17 |
| 5714616 | Thiazolemethine dyes | Stefan Beckmann, Rudiger Sens | 1998-02-03 |
| 5696243 | Diphenylamine compounds, polymers prepared therefrom and non-linear optics devices containing the same | Stefan Beckmann, Ruediger Sens | 1997-12-09 |
| 5695686 | Brightener mixtures based on bisstyryl compounds | Manfred Hauptreif, Norbert Leppert, Helmut Reichelt, Peter Raatz, Manfred Herrmann | 1997-12-09 |
| 5683833 | Use of organic materials having high nonionic charge carrier mobility | Lukas Haussling, Karl Siemensmeyer, Wolfgang Paulus, Dieter Meissner, Christina Antonius +4 more | 1997-11-04 |
| 5654122 | N-aminopyridone dyes | Ernst Schefczik, Ruediger Sens, Matthias Wiesenfeldt | 1997-08-05 |
| 5623075 | Thiazolemethine dyes | Stefan Beckmann, R udiger Sens | 1997-04-22 |
| 5620756 | Production of a ferroelectric or antiferroelectric or ferrielectric order in liquid crystals which solidify in a glass-like manner | Volker Bach, Karl Siemensmeyer, Gerhard Wagenblast | 1997-04-15 |
| 5616710 | Triazolopyridine dyes | Rudiger Sens, Ernst Schefczik, Helmut Reichelt | 1997-04-01 |
| 5616678 | Azo dyestuff- and urethane-containing polyadduct and its use in nonlinear optics | Stefan Beckmann, R udiger Sens, Karl H aberle | 1997-04-01 |
| 5612465 | Phenylazotriazolopyridine dyestuffs | Ernst Schefczik, Ruediger Sens, Helmut Reichelt, Clemens Grund | 1997-03-18 |
| RE35407 | Azo dye polymers | Matthias Wiesenfeldt, Sabine Gruettner-Merten, Ruediger Sens, Heike Kilburg | 1996-12-17 |