Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5117150 | Interference filter for deuterium lamp for spectral analyzers | Werner Schwarz, Horst Kremmling, Hans-Georg Lotz | 1992-05-26 |
| 4910431 | Hydrogen discharge ultraviolet light source or lamp, and method of its manufacture | Jurgen Witt, Horst Kremmling, Werner Schwarz, Helmut Lochmann | 1990-03-20 |
| 4433265 | Cooled discharge lamp having a fluid cooled diaphragm structure | Helmut Fischer, Jürgen Schäfer | 1984-02-21 |
| 4246509 | Gas discharge lamp with about 4 parts nitrogen and 1 part xenon | Jürgen Schäfer | 1981-01-20 |