Issued Patents All Time
Showing 26–39 of 39 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6821582 | Liquid-crystalline mixtures | Harald Hirschmann, Volker Reiffenrath, Sabine Schoen, Sven Schupfer, Clarissa Weller | 2004-11-23 |
| 6761938 | Electro-optical liquid-crystal display and liquid-crystal medium | Michael Heckmeier, Volker Reiffenrath | 2004-07-13 |
| 6749907 | Electro-optical liquid-crystal display | Michael Heckmeier, Matthias Bremer, Eike Poetsch | 2004-06-15 |
| 6641871 | Liquid-crystal compound, liquid-crystal medium comprising same, and electro-optical liquid-crystal display | Michael Heckmeier, Volker Reiffenrath | 2003-11-04 |
| 6569503 | STN liquid-crystal display | Harald Hirschmann, Volker Reiffenrath, Sabine Schoen, Clarissa Weller | 2003-05-27 |
| 6569505 | Liquid crystal compounds, liquid crystal medium and liquid crystal display | Eike Poetsch, Atsutaka Manabe, Volker Reiffenrath, Volker Meyer, Joachim Krause +1 more | 2003-05-27 |
| 6497828 | Nematic liquid-crystal composition | Harald Hirschmann, Sven Schupfer | 2002-12-24 |
| 6419999 | Liquid-crystalline medium and liquid-crystal display containing same | Kazuaki Tarumi, Eike Poetsch, Michael Schwarz, Volker Reiffenrath | 2002-07-16 |
| 6403171 | TN and HTN liquid-crystal display | Harald Hirschmann | 2002-06-11 |
| 6376030 | Nematic liquid-crystal composition, and liquid-crystal display using same | Michael Heckmeier | 2002-04-23 |
| 6183821 | STN liquid-crystal display | Harald Hirschmann, Sven Schupfer, Volker Reiffenrath, Sabine Schoen | 2001-02-06 |
| 6174572 | Nematic liquid-crystal composition | Harald Hirschmann, Sven Schupfer | 2001-01-16 |
| 6139925 | Liquid-crystal composition, method of adjusting the resistance, and substituted phenols | Michael Darius, Volker Reiffenrath, Kazuaki Tarumi, Bernhard Rieger, Michael Heckmeier +1 more | 2000-10-31 |
| 6054193 | Supertwist liquid-crystal display | Harald Hirschmann, Volker Reiffenrath | 2000-04-25 |