Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8875491 | Exhaust gas aftertreatment system and method | Friedrich Zapf, Heico Stegmann | 2014-11-04 |
| 8266892 | Calibrated dosing unit, especially of an exhaust gas treatment unit | Friedrich Zapf, Heico Stegmann | 2012-09-18 |