Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5605126 | Piston for internal combustion engines, especially diesel engines | Lothar Hofmann, Rudolf Schwarz, Karl-Heinz Obermeier-Wagner | 1997-02-25 |
| 4646692 | Component for internal combustion engines and a process for its production | Edmund Siegl | 1987-03-03 |