Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7730828 | Rotor recess with scupper slots and free casting | Emmerich Ottliczky, Franz Ratzky | 2010-06-08 |
| 6474220 | Cooling channel piston with especially low overall height | — | 2002-11-05 |