Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6802992 | Non-green anti-stokes luminescent substance | Alfred Siggel, Uwe Fischbeck | 2004-10-12 |
| 6699598 | Laminar body having phosphorescent properties, process for producing it and its use | Annett Bretschneider, Wolfgang Kuhn, Andreas Winterfeldt | 2004-03-02 |