Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5990633 | High-pressure discharge lamp having decoupled ignition and load circuits | Guenther Hirschmann, Stefan Mueller, Matthias Mengele, Christian Wittig | 1999-11-23 |
| 5572091 | Quartz glass with reduced ultraviolet radiation transmissivity, and electrical discharge lamp using such glass | Alfred Langer, Andreas Genz, Manfred Deisenhofer, Walter Keile, J urgen Reichardt | 1996-11-05 |
| 5541472 | High-power, single-ended, high-pressure discharge lamp with hot-starting capability | Wolfgang Greiler | 1996-07-30 |
| 5464462 | Method of making a quartz glass tube having a reduced ultraviolet radiation transmissivity | Alfred Langer, Andreas Genz, Manfred Deisenhofer, Walter Kiele, Jurgen Reichardt | 1995-11-07 |
| 5304892 | Double-ended high-pressure discharge lamp | Dieter Franke, Walter Kiele, Juergen Begemann, Joern Dierks | 1994-04-19 |
| 5264759 | High-pressure, high-power discharge lamp, and method of its manufacture | Dieter Franke, Walter Kiele | 1993-11-23 |
| 5164630 | Single-based high-pressure discharge lamp | Wolfgang Greiler, Andreas Genz | 1992-11-17 |
| 5120242 | Socket for single-based high-pressure discharge lamp | Wolfgang Greiler | 1992-06-09 |
| 5081396 | AC high pressure discharge lamp, especially for high current level operation | Johannes Schneider | 1992-01-14 |
| 4647814 | High-power, high-pressure metal halide discharge lamp with improved spectral light distribution | Alexander Dobrusskin, Walter Kiele | 1987-03-03 |