Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4866327 | Gas discharge lamp with microporous aerogel | Hanns E. Fischer, Horst Horster, Reinhard Kersten | 1989-09-12 |
| 4806328 | Method of manufacturing monolithic glass members | Arnoldus B. M. Bogemann, Willy J. B. Felder, Albert Gezinus Huizing | 1989-02-21 |
| 4798681 | Luminescent quartz glass, method of preparing such a glass and luminescent screen provided with such a glass | Gerrit Oversluizen, Anne-Marie Andree Van Dongen | 1989-01-17 |