Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6359386 | Electric lamp with metal shell | Gijsbert L. Von Morgen, Josephus J. Timmermans | 2002-03-19 |
| 5925582 | Glass composition suitable for use in a fluorescent lamp, lamp envelope manufactured from said glass composition and fluorescent lamp provided with a lamp envelope of said glass composition | Bartholomeus Filmer | 1999-07-20 |
| 4361779 | Lamp having a lamp vessel made of quartz glass, quartz glass and method of preparing quartz glass | Eddy F. C. Van Hove | 1982-11-30 |
| 4336048 | Method of producing doped quartz glass | Eddy F. C. Van Hove | 1982-06-22 |
| 4307315 | High pressure discharge lamp with vessel having a UV radiation absorbing portion of quartz glass | Charles C. E. Meulemans, Jan van Werkhoven | 1981-12-22 |