Issued Patents 1994
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5361152 | Process for producing ferroelectric liquid-crystal cells | Takamasa Harada, Claus Escher, Gerhard Illian, Heinz Rieger, Norbert Rosch | 1994-11-01 |
| 5356542 | Mixtures of organic ammonium salts and their use as flow accelerators | Manfred Hofinger, Detlef Wehle | 1994-10-18 |
| 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, Gerhard Illian +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, Gerhard Illian, Mikio Murakami | 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, Gerhard Illian, Yoshio Inoguchi +3 more | 1994-09-20 |
| 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, Gerhard Illian +2 more | 1994-07-12 |
| 5312553 | Mixtures of organic ammonium salts as flow accelerators | Manfred Hofinger, Detlef Wehle | 1994-05-17 |
| 5286409 | Liquid-crystalline mixtures, in particular ferroelectric liquid-crystalline mixtures | Hans-Rolf Dubal, Claus Escher, Takamasa Harada, Wolfgang Hemmerling, Gerhard Illian +3 more | 1994-02-15 |