Issued Patents 1994
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5370823 | Pyrimidinecyclohexane derivatives, process for their preparation, and their use in liquid-crystalline mixtures | Wolfgang Hemmerling, Rainer Wingen | 1994-12-06 |
| 5366657 | Geminal dimethylalkyl compounds, process for their preparation and their use in liquid-crystalline mixtures | Ingrid Muller, Takamasa Harada | 1994-11-22 |
| 5361152 | Process for producing ferroelectric liquid-crystal cells | Takamasa Harada, Claus Escher, Dieter Ohlendorf, Heinz Rieger, Norbert Rosch | 1994-11-01 |
| 5354500 | Optically active carboxylic esters of oxygen-containing heterocycles as doping substances in liquid crystal mixtures and liquid crystal mixtures containing them | Wolfgang Hemmerling, Ingrid Muller, Hans-Rolf Dubal, Claus Escher, Mikio Murakami +2 more | 1994-10-11 |
| 5353136 | Ferroelectric liquid crystal with positive dielectric anisotropy, chevron structure and grey scale | Claus Escher, Hans-Rolf Dubal, Takamasa Harada, Mikio Murakami, Dieter Ohlendorf | 1994-10-04 |
| 5348684 | Organosilylalkyl or organosilylalkenyl compounds, process for preparing them and their use in liquid-crystalline mixtures | Wolfgang Hemmerling, Hans-Rolf Dubal, Claus Escher, Yoshio Inoguchi, Ingrid Muller +3 more | 1994-09-20 |
| 5344585 | Use of 4-fluoropyrimidine derivatives as component for ferroelectric liquid crystal mixtures | Rainer Wingen | 1994-09-06 |
| 5328638 | Optically active esters of 5-ethyl- and 5-vinyl-1,3-dioxolane-4-carboxylic acid, their use as doping substances in liquid crystal mixtures and the liquid crystal mixtures containing the new esters | Ingrid Muller, Hans-Rolf Dubal, Claus Escher, Wolfgang Hemmerling, Mikio Murakami +2 more | 1994-07-12 |
| 5286409 | Liquid-crystalline mixtures, in particular ferroelectric liquid-crystalline mixtures | Hans-Rolf Dubal, Claus Escher, Takamasa Harada, Wolfgang Hemmerling, Ingrid Muller +3 more | 1994-02-15 |