Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6502277 | Emptying device for a cyclone vacuum cleaner | Stefan Petersson | 2003-01-07 |
| 6168641 | Cyclone separator device for a vacuum cleaner | Lars G. Tuvin, Lars G. Kilstrom, Stefan Petersson | 2001-01-02 |