Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6829977 | Combustion engine with a built-up piston | — | 2004-12-14 |
| 6763758 | Multi-part cooled piston for an internal combustion engine | Peter Kemnitz | 2004-07-20 |
| 6729291 | Multipart cooled piston for an internal combustion engine | Rainer Scharp | 2004-05-04 |