Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7402956 | Ballast with zero voltage switching converter | Andrew Johnsen, Bernhard Ertl, John Cross | 2008-07-22 |
| 6777878 | Dielectric barrier discharge lamp having an ignition means | Werner Berlinghof, Gerhard Doll, Wolfgang Kumpf | 2004-08-17 |
| 6642640 | Discharge lamp | Peter Helbig, Uwe Kantim | 2003-11-04 |
| 6388391 | Operating method for a discharge lamp having at least one dielectrically impeded electrode | Simon Jerebic | 2002-05-14 |
| 6194844 | Circuit arrangement and method for operating at least one high-pressure discharge lamp | Arnulf Rupp, Guenther Hirschmann | 2001-02-27 |