Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6639342 | Electric lamp | Erik Boonekamp, Johannes A. F. Peek | 2003-10-28 |
| 6049169 | Electric lamp having optical interference filter of alternating layers of SiO.sub.2 and Nb.sub.2 O.sub.5 --Ta.sub.2 O.sub.5 | Ray Gibson, Eduardus J. E. Cottaar | 2000-04-11 |