Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7973480 | High-pressure discharge lamp having an outer envelope arranged around a discharge vessel | Leo Gustaaf Joanna Emiel Marien, Willibrordus Spijker, Jean-Francois Lavaud | 2011-07-05 |
| 7701140 | High-pressure discharge lamp | Leo Gustaaf Joanna Emiel Marien | 2010-04-20 |
| 7550924 | High-pressure discharge lamp having a metal exhaust tube | Leo Gustaaf Joanna Emiel Marien, Willibrordus Hubertus Martinus Maria Van De Spijker, Jean-Francois Lavaud | 2009-06-23 |
| 6737808 | Metal halide lamp | Josephus Christian Maria Hendricx, Kurt Jan Augusta Peelaers, Veronique Emeralda Duivelshof | 2004-05-18 |
| 5698948 | Metal halide lamp with ceramic discharge vessel and magnesium in the fill to improve lumen maintenance | — | 1997-12-16 |
| 4742268 | High color rendering calcium-containing metal halide lamp | Michael H. Masto | 1988-05-03 |
| 4643690 | Method of manufacturing metal halide lamp | Michael H. Masto | 1987-02-17 |