Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6669866 | Luminous substance for a light source and light source associates therewith | Franz Kummer, Andries Ellens, Alexandra Debray, Guenther Waitl | 2003-12-30 |
| 6552487 | Phosphor for light sources, and associated light source | Andries Ellens | 2003-04-22 |
| 6504179 | Led-based white-emitting illumination unit | Andries Ellens, Frank Jermann, Franz Kummer, Michael Ostertag | 2003-01-07 |