Issued Patents All Time
Showing 76–91 of 91 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4478740 | Benzonitriles | Jurgen Eichler, Georg Weber | 1984-10-23 |
| 4456545 | Dichroitic anthraquinone dyestuffs useful in liquid crystalline dielectrics and electro-optical indicator elements | Georg Weber, Dietrich Erdmann | 1984-06-26 |
| 4419263 | Liquid crystalline cyclohexylcarbonitrile derivatives | Klaus Praefcke, Dietmar Schmidt | 1983-12-06 |
| 4419264 | Fluorine-containing 4,4'-bis-(cyclohexyl)-biphenyl derivatives, and dielectrics and electro-optical display elements containing them | Michael C. Romer, Ludwig Pohl | 1983-12-06 |
| 4415470 | Liquid crystalline fluorine-containing cyclohexylbiphenyls and dielectrics and electro-optical display elements based thereon | Ludwig Pohl | 1983-11-15 |
| 4398803 | Liquid crystal display element | Ludwig Pohl, Fernando Del Pino, Georg Weber | 1983-08-16 |
| 4382012 | Liquid crystalline diketones | Ludwig Pohl | 1983-05-03 |
| 4331552 | Liquid crystalline, partially hydrogenated oligo-1,4-phenylenes and dielectrics and electro-optical display elements containing them | Ludwig Pohl, Michael C. Romer, Fernando Del Pino | 1982-05-25 |
| 4330426 | Cyclohexylbiphenyls, their preparation and use in dielectrics and electrooptical display elements | Dietrich Erdmann, Joachim Krause, Ludwig Pohl | 1982-05-18 |
| 4302352 | Fluorophenylcyclohexanes, the preparation thereof and their use as components of liquid crystal dielectrics | Ludwig Pohl | 1981-11-24 |
| 4297515 | Diketones useful as liquid crystals | Ludwig Pohl | 1981-10-27 |
| 4285829 | Liquid-crystalline dielectric | Ludwig Pohl, Georg Weber, Fernando Del Pino | 1981-08-25 |
| 4237026 | Liquid crystalline carboxylic acid esters | Joachim Krause, Ludwig Pohl | 1980-12-02 |
| 4229315 | Liquid crystalline cyclohexane derivatives | Joachim Krause, Ludwig Pohl | 1980-10-21 |
| 4214819 | Electro-optical modulator | Ludwig Pohl, Joachim Krause, Georg Weber | 1980-07-29 |
| 4181625 | Liquid crystalline cyclohexylcyclohexanes | Joachim Krause, Ludwig Pohl | 1980-01-01 |