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, Jean J. Heuvelmans, Johannes T. W. deHair, Johannes W. ter Vrugt | 1988-02-23 |
| 4699774 | Gas-tight sintered translucent aluminum oxide and method | Peter R. Prud'Homme van Reine | 1987-10-13 |