Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5541471 | Electric lamp | Josephus J. Timmermans | 1996-07-30 |
| 5523650 | Electric incandescent lamp with a quartz glass lamp vessel and quartz glass tube for said lamp | Peter E. M. Van Den Eijn-Den | 1996-06-04 |