Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4855886 | Luminaire having a faceted reflecting surface | Egbertus J. P. Maassen, Franciscus Van Meel | 1989-08-08 |
| 4730240 | Reflector | Franciscus Van Meel, Egbertus J. P. Maassen | 1988-03-08 |
| 4331901 | Electric incandescent lamp | Bertus de Vrijer, Jan de Ridder | 1982-05-25 |