Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8330443 | Circuit arrangement and method for controlling power converters | Bernhard Ertl | 2012-12-11 |
| 7446488 | Metal halide lamp ballast controlled by remote enable switched bias supply | John Cross, Walter Batz, Bernhard Ertl | 2008-11-04 |