Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4826620 | Chiral phenolic esters of mesogenic carboxylic acids and their use as admixture in liquid crystal phases | Gerd Heppke, Feodor Oestreicher, Gunter Scherowsky | 1989-05-02 |