Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4590405 | Bivalent europium-activated barium aluminate phosphor and low mercury vapor discharge lamp provided with a phosphor | Marinus G. A. Tak | 1986-05-20 |
| 4524300 | Luminescent screen and lamp containing the same | Joseph Rutten, Johannes Trudo Cornelis Van Kemenade | 1985-06-18 |