Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8868318 | Method for operating an internal combustion engine using externally supplied ignition | Helge Frauenkron | 2014-10-21 |
| 7457700 | Method and device for operating an internal combustion engine | Helge Frauenkron | 2008-11-25 |
| 7076955 | Method for operating an internal combustion engine having at least two exhaust-gas turbochargers | Klaus Herz, Helge Frauenkron, Edgar Holl | 2006-07-18 |