Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5651918 | Optically active 1,3-dioxolane derivatives carrying a mesogenic radical in the 4-position, a process for their preparation and their use as doping agents in liquid-crystal mixtures | Gunter Scherowsky, Jurgen Gay, Rainer Wingen, Hans-Rolf Dubal, Claus Escher +3 more | 1997-07-29 |
| 5384070 | Use of optically active tetrahydrofuran-2-carboxylic acid esters as dopants in liquid-crystal mixtures, liquid-crystal mixtures containing same and novel optically active tetrahydrofuran-2-carboxylic acid esters | Wolfgang Hemmerling, Hans-Rolf Dubal, Claus Escher, Gerhard Illian, Ingrid Muller +3 more | 1995-01-24 |
| 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, Ingrid Muller +3 more | 1994-09-20 |