Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5691601 | Metal-halide discharge lamp for photooptical purposes | Anna-Maria Frey, Jürgen Maier, Ralf Seedorf, Clemens Barthelmes, Thomas Dittrich | 1997-11-25 |
| 4686419 | Compact high-pressure discharge lamp with a fill including cadmium and lithium halide | Werner Block, Wolfgang Pabst | 1987-08-11 |
| 4290097 | High-pressure discharge lamp and reflector combination | Werner Block, Klaus Dusedau, Wolfgang Greiler | 1981-09-15 |