Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9228754 | Cuboidal housing for accommodating components of air-conditioning or ventilation system | Georg Hetzel, Ralf Joneleit, Klaus Niklas | 2016-01-05 |
| 6309294 | Lab-hood vent system | Manfred Sadkowski, Thomas Sefker, Sven Wedler | 2001-10-30 |
| 5398728 | Volume flow regulator for air conditioning and ventilation apparatus | Manfred Sadkowski | 1995-03-21 |
| 4488575 | Volume flow regulator for ventilation systems | Josef Haaz, Wolfgang Finkelstein | 1984-12-18 |