Issued Patents All Time
Showing 26–50 of 50 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7786683 | Circuit arrangement and method for operating at least one electric lamp and at least one LED | Olaf Busse, Markus Heckmann, Reinhard Lecheler, Alfons Lechner, Siegfried Mayer +7 more | 2010-08-31 |
| 7723920 | Drive circuit for a switchable heating transformer of an electronic ballast and corresponding method | Arwed Storm | 2010-05-25 |
| 7601745 | Heterocyclic NF-kB inhibitors | Johann Leban, Kristina Wolf, Stefano Pegoraro, Andreas Wuzik | 2009-10-13 |
| 7519394 | Method for the provision of operator-specific performance features of different mobile radio network operators for a mobile radio customer | — | 2009-04-14 |
| 7406983 | Shut-off fitting | Simon Schwartz, Alexander Rothermel, Fabian Maier, Dirk Elsasser, Heiko Gehr +3 more | 2008-08-05 |
| 7398847 | Radiator arrangement | — | 2008-07-15 |
| 7327094 | Circuit arrangement and method for operating at least one electric lamp | Olaf Busse, Markus Heckmann, Reinhard Lecheler, Alfons Lechner, Siegfried Mayer +7 more | 2008-02-05 |
| 7317030 | Compounds as inhibitors of cell proliferation and viral infections | Johann Leban | 2008-01-08 |
| 7309963 | Smoothing circuit for improving EMC | Olaf Busse, Markus Heckmann, Reinhard Lecheler, Alfons Lechner, Siegfried Mayer +7 more | 2007-12-18 |
| 7301292 | Circuit arrangement for operating at least one first and one second lamp which can be inserted in said circuit arrangement | — | 2007-11-27 |
| 7061781 | Circuit arrangement for operating light sources | Markus Heckmann | 2006-06-13 |
| 7053563 | Circuit arrangement for operating light sources | Henry Hoo, Ken Liu, Rene Twardzik | 2006-05-30 |
| 7034465 | Device for operating discharge lamps by means of a transformer with four windings, and a corresponding method | Uwe Liess, Siegfried Mayer | 2006-04-25 |
| 6873122 | Apparatus for operating discharge lamps | — | 2005-03-29 |
| 6806657 | Device for operating discharge lamps | Bernd Rudolph | 2004-10-19 |
| 6710552 | Circuit arrangement for operating discharge lamps | — | 2004-03-23 |
| 6650514 | Protection circuit for a fluorescent lamp | — | 2003-11-18 |
| 6566822 | Electronic circuits for detecting filament breakage in gas discharge lamps | Klaus Schadhauser | 2003-05-20 |
| 6246173 | Free-running oscillator circuit with simple starting circuit | Klaus Fischer | 2001-06-12 |
| 5925984 | Circuit arrangement having LC parallel tuned drive circuitry | Klaus Fischer, Ludwig Reiser, Peter Haeussinger, Walter Hirschmann | 1999-07-20 |
| 5879554 | Polysulfone membrane and method for its manufacture | Walter Loffelmann, Jurgen Passlack, Heinz-Dieter Sluma, Michael Schmitt | 1999-03-09 |
| 5704806 | Through-wall electrical connector housing | Lothar Post | 1998-01-06 |
| 5626493 | Through-wall electrical connector | Lothar Post | 1997-05-06 |
| 5610479 | Circuit arrangement for operating low-pressure discharge lamps | — | 1997-03-11 |
| 5290448 | Polyacrylonitrile membrane | Heinz-Dieter Sluma, Jurgen Passlack, Walter Loffelmann, Karl Henke | 1994-03-01 |