Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10876482 | Internal combustion engine | Friedhelm Hillen, Manfred Sieberer | 2020-12-29 |
| 10458299 | Exhaust gas aftertreatment apparatus | Friedhelm Hillen, Arne Bienholz, Marco Dris Paul | 2019-10-29 |
| 10184373 | Internal combustion engine for reducing exhaust gas emissions | Friedhelm Hillen, Manfred Sieberer | 2019-01-22 |
| 9816427 | Catalytic converter device for a stationary internal combustion engine | Friedhelm Hillen, Michael Url, Max MEHRING, Manfred Sieberer | 2017-11-14 |
| 9266074 | Mixing device having a plurality of mixing channels | Arne Bienholz, Friedhelm Hillen | 2016-02-23 |