Ahlf; Heinz Jurgen
Patent Applications and Registrations
Patent applications and USPTO patent grants for Ahlf; Heinz Jurgen.The latest application filed is for "vacuum cleaning appliance with telescopic handle".
- Ahlf; Heinz Jurgen - Bergisch-Gladbach DE
- Ahlf; Heinz-Jurgen - Berg.-Gladbach DE
| Patent | Date |
|---|---|
| Vacuum cleaning appliance with telescopic handle Grant 5,867,862 - Ahlf , et al. February 9, 1 | 1999-02-09 |
| Apparatus for performing work on a floor surface Grant 5,353,471 - Guhne , et al. October 11, 1 | 1994-10-11 |
| Interface arrangement for a filter bag in a vacuum cleaner Grant 5,221,303 - Guhne , et al. June 22, 1 | 1993-06-22 |
| Electrical vacuum cleaner and filter bag for same Grant 4,961,765 - Guhne , et al. * October 9, 1 | 1990-10-09 |
| Electric vacuum cleaner Grant 4,851,019 - Ahlf , et al. July 25, 1 | 1989-07-25 |
| Vacuum cleaner nozzle Grant 4,696,076 - Ahlf , et al. September 29, 1 | 1987-09-29 |
| Attachment nozzle for a vacuum cleaning system Grant 4,538,322 - Ahlf , et al. September 3, 1 | 1985-09-03 |
| Suction nozzle unit Grant 4,459,720 - Ahlf , et al. July 17, 1 | 1984-07-17 |
| Front-suction arrangement on a vacuum cleaner Grant 4,416,034 - Ahlf , et al. November 22, 1 | 1983-11-22 |
| Element for connecting an accessory instrument to a vacuum cleaner Grant 4,309,048 - Ahlf , et al. January 5, 1 | 1982-01-05 |
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