Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5942851 | Low-pressure sodium discharge lamp with specific current supply coatings | Bartholomeus Filmer | 1999-08-24 |
| 5498927 | Low-pressure sodium discharge lamp having sealed current conductors with first and second glass coating | Karel R. Vervecken | 1996-03-12 |
| 5461277 | High-pressure gas discharge lamp having a seal with a cylindrical crack about the electrode rod | Mark Josephus Lucien Maria Van Dommelen | 1995-10-24 |