Issued Patents All Time
Showing 26–38 of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5286409 | Liquid-crystalline mixtures, in particular ferroelectric liquid-crystalline mixtures | Claus Escher, Takamasa Harada, Wolfgang Hemmerling, Gerhard Illian, Ingrid Muller +3 more | 1994-02-15 |
| 5257122 | Ferroelectric liquid crystal display having gray steps or a continuous gray scale | Claus Escher, Gerhard Illian, Mikio Murakami, Dieter Ohlendorf | 1993-10-26 |
| 5196501 | Substituted aromatic polyamides as orientation layers for liquid crystal display elements and liquid crystal switching elements | Mikio Murakami, Otto Herrmann-Schonherr, Arnold Schneller | 1993-03-23 |
| 5166304 | Use of polyaryl ether ketones as alignment layers | Mikio Murakami, Hans-Otto Drotloff, Michael-Joachim Brekner | 1992-11-24 |
| 5118538 | Electrically conductive polymers and their use as orienting layer in liquid-crystal switching and display elements | Claus Escher, Michael Feldhues, Takamasa Harada, Gerhard Illian, Thomas Mecklenburg +3 more | 1992-06-02 |
| 5071589 | Liquid-crystalline mixtures, in particular ferroelectric liquid-crystalline mixtures | Claus Escher, Wolfgang Hemmerling, Ingrid Muller, Dieter Ohlendorf, Rainer Wingen | 1991-12-10 |
| 4988459 | Use of optically active oxirane-2-carboxylic acid esters as dopants in liquid-crystal mixtures, liquid-crystal mixtures containing same and novel optically active oxirane-2-carboxylic acid esters | Gunter Scherowsky, Jurgen Gay, Claus Escher, Wolfgang Hemmerling, Ingrid Muller +2 more | 1991-01-29 |
| 4985172 | Chiral aryloxypropionates, and the use thereof as dopes in liquid-crystal phases | Rainer Wingen, Wolfgang Hemmerling, Ingrid Muller, Dieter Ohlendorf | 1991-01-15 |
| 4927244 | Use of compounds or mixtures of compounds which have a chiral, orthogonal, more highly ordered smectic phase in the range of said phase as switching or indicating medium | Christian Bahr, Gerd Heppke, Detlef Lotzsch, Claus Escher, Dieter Ohlendorf | 1990-05-22 |
| 4906401 | Use of liquid-crystal 5-phenylpyrimidine derivatives as components of smectic liquid-crystal mixtures | Claus Escher, Wolfgang Hemmerling, Ingrid Muller, Dieter Ohlendorf, Rainer Wingen | 1990-03-06 |
| 4906752 | Liquid-crystal 5-phenylpyrimidine derivatives having sc or sc* phases and a process for preparing them | Ingrid Muller, Claus Escher, Wolfgang Hemmerling, Dieter Ohlendorf, Rainer Wingen | 1990-03-06 |
| 4891151 | Liquid-crystalline phenylpyrimidinyl cyclohexanecarboxylates having a smectic phase, a process for their preparation, and their use in liquid-crystal mixtures | Rainer Wingen, Claus Escher, Wolfgang Hemmerling, Ingrid Muller, Dieter Ohlendorf | 1990-01-02 |
| 4876028 | Chiral aryl-2,3-epoxyalkyl-ethers and the corresponding thio compounds thereof, and the use thereof as dopes in liquid-crystal phases | Wolfgang Hemmerling, Ingrid Muller, Dieter Ohlendorf, Rainer Wingen | 1989-10-24 |