Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9384958 | High-pressure discharge lamp | — | 2016-07-05 |
| 8853943 | Dysprosium-halide-containing high-pressure discharge lamp | Niels Gerlitzki | 2014-10-07 |
| 8786187 | Discharge lamp with an outer bulb surrounded by a wire gauze as explosion protection | Johannes Buttstaedt, Stefan Dünkel, Maik Hegewald | 2014-07-22 |
| 8569952 | Ceramic metal halide lamp having a high color temperature | — | 2013-10-29 |
| D690446 | Lamp | Johannes Buttstaedt, Stefan Dünkel, Maik Hegewald | 2013-09-24 |
| 7595593 | Metal halide lamp with an ionizable fill with vanadium and rare earths, excluding manganese | Martin Tüshaus | 2009-09-29 |
| D600371 | Discharge lamp | Leon Grabinski, Jurgen Graf | 2009-09-15 |
| 7545100 | Metal halide lamp | — | 2009-06-09 |
| 7514873 | Electric lamp having an outer bulb | Leon Grabinski, Jurgen Graf | 2009-04-07 |
| 7511430 | Metal halide lamp | — | 2009-03-31 |
| 6380675 | Metal halide discharge lamp with a long service life | Hans-Werner Goelling | 2002-04-30 |
| 6218781 | Long-lasting metal halide discharge lamp | Hans-Werner Golling | 2001-04-17 |
| 6054811 | Direct-current short-ARC discharge lamp | Frank Werner | 2000-04-25 |
| 6051929 | Direct-current arc lamp | Frank Werner | 2000-04-18 |
| 5929563 | Metal halide high pressure discharge lamp | — | 1999-07-27 |
| 5831388 | Rare earth metal halide lamp including niobium | Joachim Dirks, Hans-Werner Golling, Clemens Barthelmes | 1998-11-03 |
| 5668441 | Metal halide high-pressure discharge lamp | — | 1997-09-16 |
| 5635796 | High-pressure discharge lamp including halides of tantalum and dysprosium | — | 1997-06-03 |
| 5572091 | Quartz glass with reduced ultraviolet radiation transmissivity, and electrical discharge lamp using such glass | Alfred Langer, Manfred Deisenhofer, Walter Keile, Bernd Lewandowski, J urgen Reichardt | 1996-11-05 |
| 5464462 | Method of making a quartz glass tube having a reduced ultraviolet radiation transmissivity | Alfred Langer, Manfred Deisenhofer, Walter Kiele, Bernd Lewandowski, Jurgen Reichardt | 1995-11-07 |
| 5416383 | High-pressure discharge lamp and low-noise lamp operating system | — | 1995-05-16 |
| 5323085 | Metal halide high-pressure discharge lamp with a fill containing hafnium and/or zirconium | — | 1994-06-21 |
| 5264760 | High-pressure metal halide discharge lamp with a fill containing nickel halide | Walter Kiele | 1993-11-23 |
| 5164630 | Single-based high-pressure discharge lamp | Wolfgang Greiler, Bernd Lewandowski | 1992-11-17 |