Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11649778 | Method for operating an internal combustion engine, in particular a gas engine | Franz Werner Prümm | 2023-05-16 |
| 11365823 | Valve with temperature compensation | Ralf Heinrich, Diether Hoppner, Siegfried Driemer | 2022-06-21 |
| 10627006 | Valve that can be actively and passively actuated | Ralf Heinrich | 2020-04-21 |