Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7318663 | Vehicle with lighting system for tail lights and license plate comprising light emitting diodes and optical waveguide | Stefan Marcus Verbrugh, Nicola Bettina Pfeffer | 2008-01-15 |
| 6639342 | Electric lamp | Erik Boonekamp, Wolfgang Doetter | 2003-10-28 |
| 6150757 | Method of coating a luminescent material | Cornelis Reinder Ronda, Volker Weiler, Annette Johnen, Wilhelmus M. P. Van Kemenade | 2000-11-21 |
| 5811154 | Method of coating a luminescent material | Cornelis Reinder Ronda, Volker Weiler, Annette Johnen, Wilhelmus M. P. Van Kemenade | 1998-09-22 |
| 5712485 | Radiation-dose indicator and lamp and tanning apparatus comprising such a radiation-dose indicator | Dirk Jan Broer, Ingrid E. J. R. Heynderickx | 1998-01-27 |