Issued Patents All Time
Showing 26–36 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D344376 | Vacuum cleaner | — | 1994-02-15 |
| 5267370 | Suction device for liquids | — | 1993-12-07 |
| 5249333 | Vacuum cleaning tool | — | 1993-10-05 |
| 5141309 | Apparatus for indicating how dirty an air filter is in a vacuum-cleaning apparatus, in a room filter, etc. | — | 1992-08-25 |
| 5014386 | Suction nozzle, with a brush, for a vacuum cleaner | — | 1991-05-14 |
| 5008973 | Multi-purpose suction nozzle | — | 1991-04-23 |
| D312904 | Vacuum cleaner nozzle | — | 1990-12-11 |
| D306789 | Brush-type suction nozzle | — | 1990-03-20 |
| 4827558 | Vacuum conduit arrangement for a central dust-collecting system | — | 1989-05-09 |
| 4776059 | Vacuum-cleaning apparatus | — | 1988-10-11 |
| 4749389 | Method and apparatus for humidifying and purifying the air of a room | — | 1988-06-07 |