Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4874545 | Chiral esters of .alpha.-substituted phenylalkanoic acids and mesogenic hydroxy compounds, and their use as a doping substance in liquid crystal phases | Gunter Scherowsky, Christian Bahr, Lutz Lehmann | 1989-10-17 |
| 4855429 | Chiral esters formed from .alpha.-substituted carboxylic acids and mesogenic hydroxyl compounds, and their use as dopants in liquid-crystalline phases | Christian Bahr, Ingrid Muller, Dieter Ohlendorf, Rainer Wingen | 1989-08-08 |
| 4826620 | Chiral phenolic esters of mesogenic carboxylic acids and their use as admixture in liquid crystal phases | Detlef Lotzsch, Feodor Oestreicher, Gunter Scherowsky | 1989-05-02 |
| 4818076 | Color-selective circular polarizer and its use | Feodor Oestreicher | 1989-04-04 |