Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5620756 | Production of a ferroelectric or antiferroelectric or ferrielectric order in liquid crystals which solidify in a glass-like manner | Karl-Heinz Etzbach, Karl Siemensmeyer, Gerhard Wagenblast | 1997-04-15 |
| 5608041 | Azo dyestuffs containing a diazo component from the aniline series and coupling component from the triazolopyridine series | Ernst Schefczik, Helmut Reichelt, Clemens Grund | 1997-03-04 |