Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8084928 | Halogen incandescent lamp incorporating two filaments for daylight operation | Frank Auer, Peter Helbig, Christian Seichter, Klaus Wittmann, Sascha Zelt | 2011-12-27 |
| 7911122 | Lamp base with a cutout and lamp with corresponding lamp base | Peter Helbig | 2011-03-22 |