Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5677598 | Low-pressure mercury discharge lamp with color temperature adjustment | Lukas Kastelein | 1997-10-14 |
| 5669510 | Method and device for selecting low-pressure murcury discharge lamps | Petrus C. Lauwerijssen, Lukas Kastelein, Henricus C. G. Verhaar | 1997-09-23 |