Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6833425 | Filler for plastic formulations based on polyurethane | Bernd Gangnus, Gunther Lechner | 2004-12-21 |
| 6752989 | Tooth surface treatment agent | Ingo Häberlein, Thomas Luchterhandt, Oliver Frey | 2004-06-22 |