Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5464462 | Method of making a quartz glass tube having a reduced ultraviolet radiation transmissivity | Alfred Langer, Andreas Genz, Manfred Deisenhofer, Bernd Lewandowski, Jurgen Reichardt | 1995-11-07 |
| 5304892 | Double-ended high-pressure discharge lamp | Bernd Lewandowski, Dieter Franke, Juergen Begemann, Joern Dierks | 1994-04-19 |
| 5264759 | High-pressure, high-power discharge lamp, and method of its manufacture | Bernd Lewandowski, Dieter Franke | 1993-11-23 |
| 5264760 | High-pressure metal halide discharge lamp with a fill containing nickel halide | Andreas Genz | 1993-11-23 |
| 4647814 | High-power, high-pressure metal halide discharge lamp with improved spectral light distribution | Alexander Dobrusskin, Bernd Lewandowski | 1987-03-03 |