Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6707246 | Low-pressure mercury vapor discharge lamp with improved auxiliary amalgam | Willem Johannes Van Den Bogert, Hindrik Hermannus Stel, Johannes Theodorus Jacobus Van Haastrecht, Jeroen Jan Wits, Ronald Arjan Van Den Brakel +1 more | 2004-03-16 |
| 5466249 | Operating lamp device | — | 1995-11-14 |