Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7977858 | Low-pressure mercury vapor discharge lamp | Wim Hellebrekers | 2011-07-12 |
| 6734616 | Low-pressure mercury-vapor discharge lamp and amalgam | Martijn Henri Richard Lankhorst, Wilhelmus Cornelis Keur | 2004-05-11 |
| 4924142 | Low pressure mercury vapor discharge lamp | — | 1990-05-08 |
| 4422011 | High-pressure mercury vapor discharge lamp | Leonce M. J. Bruninx-Poesen, Peter C. Drop, Roland Lorenz, Willy J. C. Endevoets | 1983-12-20 |