Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11149901 | Tripod | — | 2021-10-19 |
| D926863 | Tripod for cameras and film cameras | — | 2021-08-03 |
| 9822003 | Process and apparatus for molten slag gasification of solid fuels | Bernd Meyer | 2017-11-21 |
| 7898190 | Method for setting an electronic ballast | — | 2011-03-01 |
| 6803731 | Operating circuit for a discharge lamp with early EOL detection | Markus Heckmann | 2004-10-12 |
| 6646390 | EOL detection with integrated filament interrogation | Markus Heckmann | 2003-11-11 |
| 6291947 | Circuit arrangement for operating at least one discharge lamp | Richard Koeppl, Olaf Busse | 2001-09-18 |
| 6191677 | Inductance element | Bernhard Orben, Richard Koeppl, Rene Twardzik, Jerzy Cierpinski, Olaf Busse +2 more | 2001-02-20 |