Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6613401 | Liquid-crystalline medium | Harald Hirschmann, Renate Graulich, Martina Weidner | 2003-09-02 |
| 6555186 | TN and STN liquid-crystal displays | Harald Hirschmann, Martina Weidner, Peer Kirsch | 2003-04-29 |