Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4437644 | Electrically operable valve | — | 1984-03-20 |
| 4250721 | Heat pump | Klaus Wissler | 1981-02-17 |
| 4215538 | Internal combustion engine having an afterburning device | Johannes Steinwart, Konrad Lummerzheim, Armin Bauder | 1980-08-05 |