Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8344649 | Universal electronic ballast for operating Hg-free lamps and Hg-containing discharge lamps | Bernhard Siessegger | 2013-01-01 |
| 8314554 | Integrated gas discharge lamp | Knut Asmussen, Lars Kolbe, Manfred Roehl, Bernhard Siessegger | 2012-11-20 |
| 6731076 | Base of an electric discharge lamp with an ignition device | Karl Gerhard, Erwin Gaisbauer, Anton Duschl, Johann Winkler, Christian Wittig +5 more | 2004-05-04 |
| 6462476 | Lighting system with a high-pressure discharge lamp | Bontcho Gotchev, Arnulf Rupp | 2002-10-08 |
| 6411040 | Apparatus and circuit for operating a discharge lamp of a motor vehicle at two power levels | Bernhard Ertl, Thomas Reiners | 2002-06-25 |
| 6400101 | Control circuit for LED and corresponding operating method | Alois Biebl, Franz Schellhorn | 2002-06-04 |
| 6375340 | Led component group with heat dissipating support | Alois Biebl | 2002-04-23 |
| 6194844 | Circuit arrangement and method for operating at least one high-pressure discharge lamp | Arnulf Rupp, Gerwin Thiel | 2001-02-27 |
| 6191538 | High-pressure discharge lamp having a base at one end and a starting device integrated in the base | Arnulf Rupp | 2001-02-20 |
| 6181081 | Ignition device for a discharge lamp and method for igniting a discharge lamp | Juergen Becker, Gerhard Behr, Christian Wittig, Peter Helbig | 2001-01-30 |
| 6049172 | Ignition apparatus for a discharge lamp | Juergen Becker, Gerhard Behr, Christian Wittig, Peter Helbig | 2000-04-11 |
| 5990633 | High-pressure discharge lamp having decoupled ignition and load circuits | Stefan Mueller, Matthias Mengele, Christian Wittig, Bernd Lewandowski | 1999-11-23 |
| 5739644 | Discharge lamp typically a sodium high-pressure discharge lamp, from an a-c power network | Franz Bernitz, Andreas Huber, Michael Boenigk | 1998-04-14 |
| 5726537 | Circuit for pulsed operation of a discharge lamp | Andreas Huber | 1998-03-10 |
| 5064299 | Optocoupler apparatus | Guenter Waitl, Franz Schellhorn | 1991-11-12 |