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 Zwaschka, Andries Ellens, Alexandra Debray, Guenther Waitl | 2003-12-30 |
| 6657379 | Illumination unit having at least one LED as light source | Andries Ellens, Gunter Huber | 2003-12-02 |
| 6504179 | Led-based white-emitting illumination unit | Andries Ellens, Frank Jermann, Michael Ostertag, Franz Zwaschka | 2003-01-07 |