Issued Patents 2002
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6495220 | Disubstituted phenanthrenes and their use in liquid-crystal mixtures | Barbara Hornung, Wolfgang Schmidt, Rainer Wingen | 2002-12-17 |
| 6482479 | Active matrix displays having high contrast values | Toshiaki Nonaka, Rainer Wingen | 2002-11-19 |
| 6368679 | Ferroelectric liquid-crystal display having active matric elements | Wolfgang Schmidt | 2002-04-09 |
| 6365238 | Chip card with bistable display | — | 2002-04-02 |