Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4401916 | High-pressure discharge lamp | Johannes A. J. M. Van Vliet, Petrus Antonius Marie Weerdesteijn | 1983-08-30 |
| 4367432 | Blended lamp | Johannes A. J. M. Van Vliet | 1983-01-04 |