Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5867862 | Vacuum cleaning appliance with telescopic handle | Ludger Helmes, Rolf Strohmeyer | 1999-02-09 |
| 5353471 | Apparatus for performing work on a floor surface | Wieland Guhne, Gentile Marafante, Mario Tecchiati | 1994-10-11 |
| 5221303 | Interface arrangement for a filter bag in a vacuum cleaner | Wieland Guhne | 1993-06-22 |
| 4961765 | Electrical vacuum cleaner and filter bag for same | Wieland Guhne, Manfred Eckart | 1990-10-09 |
| 4885013 | Arrangement of filter bags in electric vacuum cleaners | Gieland Guhne, Manfred Eckhart | 1989-12-05 |
| 4851019 | Electric vacuum cleaner | Jurgen Jager, Peter Wulf, Wieland Guhne, Manfred Eckart | 1989-07-25 |
| 4696076 | Vacuum cleaner nozzle | Wieland Guhne, Hans-Peter Simm, Peter Wulf | 1987-09-29 |
| 4685170 | Bristle component for a floor cleaning nozzle | Wieland Guhne, Hans-Peter Simm, Peter Wulf | 1987-08-11 |
| 4538322 | Attachment nozzle for a vacuum cleaning system | Wieland Guhne, Peter Wulf, Hans-Peter Simm | 1985-09-03 |
| 4459720 | Suction nozzle unit | Wieland Guhne, Bernd Fink, deceased | 1984-07-17 |
| 4416034 | Front-suction arrangement on a vacuum cleaner | Wieland Guhne | 1983-11-22 |
| 4309048 | Element for connecting an accessory instrument to a vacuum cleaner | Rolf Strohmeyer | 1982-01-05 |