Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6359386 | Electric lamp with metal shell | Gijsbert L. Von Morgen, Gerardus H. A. M. van der Steen | 2002-03-19 |
| 5851253 | Method of manufacturing quartz glass for a lamp vessel | ROBERT JACOB PET | 1998-12-22 |
| 5541471 | Electric lamp | Joannes Terheijden | 1996-07-30 |