Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5702639 | Use of complex ligands for ions in ferroelectric liquid-crystal mixtures | Claus Escher, Takamasa Harada, Norbert Rosch, Rainer Wingen | 1997-12-30 |
| 5695683 | Ferroelectric liquid crystal mixture | Ayako Takeichi | 1997-12-09 |
| 5679792 | Derivatives of 3-cyclohexylpropionic acid, and the use thereof in ferroelectric liquid-crystal mixtures | Claus Escher, Hubert Schlosser, Rainer Wingen | 1997-10-21 |
| 5594575 | Ferroelectric liquid-crystal systems having three or more chiral additives with different signs of the helical twist in the cholesteric phase | Claus Escher, Hans-Rolf Dubal, Takamasa Harada, Wolfgang Hemmerling, Ingrid Muller +3 more | 1997-01-14 |