Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8664855 | High-pressure discharge lamp having a capacitive ignition aid | Johannes Buttstaedt, Stefan Dünkel, Janbernd Hentschel, Bernd Koch, Stefan Lichtenberg +1 more | 2014-03-04 |
| 8227990 | High pressure discharge lamp with a capacitive starting aid | Johannes Buttstaedt, Stefan Dünkel, Janbernd Hentschel, Martin Tueshaus | 2012-07-24 |
| D600371 | Discharge lamp | Andreas Genz, Jurgen Graf | 2009-09-15 |
| 7514873 | Electric lamp having an outer bulb | Andreas Genz, Jurgen Graf | 2009-04-07 |