Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9664339 | Semiconductor incandescent lamp retrofit lamp | Andreas Bittinger, Marc Luennemann | 2017-05-30 |
| 8212476 | Welding aid for a spiral-wound filament | Frank Auer, Gerhard Behr, Peter Helbig, Christian Seichter, Klaus Wittmann | 2012-07-03 |
| 8188658 | Two-filament lamp | Frank Auer, Gerhard Behr, Peter Helbig, Christian Seichter, Klaus Wittmann | 2012-05-29 |
| 8164240 | Anti-dazzle device with a filament | Frank Auer, Gerhard Behr, Peter Helbig, Christian Seichter, Klaus Wittmann | 2012-04-24 |
| 8102109 | Lamp featuring an improved pinch geometry | Frank Auer, Gerhard Behr, Peter Helbig, Christian Seichter, Klaus Wittmann | 2012-01-24 |
| 8084928 | Halogen incandescent lamp incorporating two filaments for daylight operation | Frank Auer, Gerhard Behr, Peter Helbig, Christian Seichter, Klaus Wittmann | 2011-12-27 |
| 8011798 | Halogen incandescent lamp | Manfred Bühler, Hans Guenther Mayer, Klaus Wittmann | 2011-09-06 |
| 7830076 | Incandescent halogen lamp | Klaus Wittmann | 2010-11-09 |