Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7350489 | Finger lever of a valve train of an internal combustion engine | Helmut Engelhardt, Johann Kecker | 2008-04-01 |
| 7219639 | Drag lever of a valve mechanism in an internal combustion engine | Helmut Engelhardt, Johann Kecker | 2007-05-22 |
| 5969205 | Process for preparing C.sub.4 --C.sub.6 --alkenes having an internal double bond comprising recycling a portion of a product stream | Arnd Stuwe, Matthias Baum, Franz Kaledat | 1999-10-19 |
| 5141525 | Process for producing high-octane, low-olefin motor fuels and motor fuel components | Arnd Stuwe, Herbert Tschorn, Hans-Volker Scheef | 1992-08-25 |