Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4955331 | Process for the operation of an Otto engine | August-Wilhelm Preuss, Kurt-Peter Schug, Helmut Riegel | 1990-09-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4955331 | Process for the operation of an Otto engine | August-Wilhelm Preuss, Kurt-Peter Schug, Helmut Riegel | 1990-09-11 |