Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4727283 | Low-pressure mercury vapour discharge lamp | Johannes Trudo Cornelis Van Kemenade, Gerardus H. M. Siebers, Jean J. Heuvelmans, Johannes W. ter Vrugt | 1988-02-23 |
| 4319161 | Luminescent screen and low pressure mercury vapor discharge lamp containing the same | Bob Looye, Cornelis Bakker | 1982-03-09 |