Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7138660 | Light emitting device | Koichi Ota, Atsuo Hirano, Akihito Ota, Stefan Tasch, Peter Pachler +3 more | 2006-11-21 |
| 7067071 | Zinc sulfide electroluminophores and method for production thereof | Frank Kappe, Benedikt Ahlers, Arnim Franz-Burgholz, Hans-Jurgen Limburg, Monika Voh | 2006-06-27 |
| 6943380 | Light emitting device having phosphor of alkaline earth metal silicate | Koichi Ota, Atsuo Hirano, Akihito Ota, Stefan Tasch, Peter Pachler +3 more | 2005-09-13 |
| 6841092 | Anti-stokes fluorescent compositions and methods of use | Manfred Paeschke, Benedikt Ahlers, Anett Bailleu, Oliver Muth, Arnim Franz-Burgholtz +2 more | 2005-01-11 |
| 6809347 | Light source comprising a light-emitting element | Stefan Tasch, Peter Pachler, Gundula Roth, Walter Tews, Wolfgang Kempfert | 2004-10-26 |
| 4793944 | Crystalline lanthanum-oxy-halide phosphor activated with rare earths | Gerhard Herzog, Walter Tews, Franz Braunholz, Aleksander M. Gurvic, Svetlana I. Golovkova +1 more | 1988-12-27 |