Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6877473 | Diesel engine piston | Wilfried Sander, Michael Ullrich | 2005-04-12 |
| 6546922 | Piston engine with light-alloy cylinder | — | 2003-04-15 |
| 5511521 | Light-alloy piston with a combustion bowl | Dieter Muller-Schwelling | 1996-04-30 |
| 5295583 | Process for cleaning short mineral fibers | Dieter Muller-Schwelling, Ernst Pfleiderer | 1994-03-22 |