Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5137557 | Suction air filter for combustion engines | Bernhard Behrendt, Friedrich Benning, Volker Ernst, Herbert Gelb, Arthur Klotz +2 more | 1992-08-11 |
| 4281742 | Silencer for exhaust gases | Henning Adickes | 1981-08-04 |