Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6525473 | Low pressure mercury vapor discharge lamp with ceramic electrode shield | Cornelis Johannes Maria Denissen, Cornelis Reinder Ronda, Henricus Gubbels | 2003-02-25 |
| 6359385 | Low-pressure mercury vapor discharge lamp with electrode shield | Cornelis Johannes Maria Denissen, Cornelis Reinder Ronda, Henricus Gubbels | 2002-03-19 |
| 6274981 | Low-pressure mercury vapor discharge lamp with electrode shield | Cornelis Reinder Ronda, Cornelis Johannes Maria Denissen, Volker Weiler, Wilhelm A. Groen, Bennie Josephus De Maagt | 2001-08-14 |
| 6150757 | Method of coating a luminescent material | Cornelis Reinder Ronda, Volker Weiler, Annette Johnen, Johannes A. F. Peek | 2000-11-21 |
| 6049164 | Low-pressure mercury lamp with specific electrode screens | Pieter Joseph Clara Van Der Wel | 2000-04-11 |
| 5811154 | Method of coating a luminescent material | Cornelis Reinder Ronda, Volker Weiler, Annette Johnen, Johannes A. F. Peek | 1998-09-22 |
| 5801482 | Low-pressure mercury vapor discharge lamp | Henricus C. G. Verhaar, Henriette Jacoba Talen-Van Der Mheen, Christianus J. Roozekrans | 1998-09-01 |
| 4806823 | Method of manufacturing an electron beam tube and electron beam tube thus manufactured | Johannes M. A. A. Compen | 1989-02-21 |
| 4550032 | Electric discharge tube and method of manufacturing an electrically conductive layer on a wall portion of the envelope of such a tube | Johannes M. A. A. Compen | 1985-10-29 |