Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8127399 | Self-propelled vacuum-cleaning device | Dieter Kaffenberger, Klaus-Dieter Riehl | 2012-03-06 |
| 6675438 | Vacuum-cleaner floor head | Hans-Joachim Steudtner, Dieter Kaffenberger | 2004-01-13 |
| 6672735 | Suction head for a suction cleaning device | Dieter Kaffenberger, Klaus-Dieter Riehl | 2004-01-06 |
| 6385811 | Suction head for floor vacuum cleaners | Dieter Kaffenberger, Thomas Lind, Hans-Joachim Steudtner | 2002-05-14 |
| 6209169 | Turbine-powered brush nozzle for vacuum cleaner | Hans-Joachim Steudtner | 2001-04-03 |