Inventor
AHLF HEINZ-JUERGEN
DE12 patents
Patents
12 patentsUS5867862AFeb 9, 1999
Vacuum cleaning appliance with telescopic handle
VORWERK CO INTERHOLDING31 citations91
US4961765AOct 9, 1990
Electrical vacuum cleaner and filter bag for same
VORWERK CO INTERHOLDING27 citations91
US4696076ASep 29, 1987
Vacuum cleaner nozzle
VORWERK CO INTERHOLDING24 citations81
US4851019AJul 25, 1989
Electric vacuum cleaner
VORWERK CO INTERHOLDING22 citations80
US4459720AJul 17, 1984
Suction nozzle unit
VORWERK CO INTERHOLDING22 citations77
US5221303AJun 22, 1993
Interface arrangement for a filter bag in a vacuum cleaner
VORWERK CO INTERHOLDING13 citations73
US4885013ADec 5, 1989
Arrangement of filter bags in electric vacuum cleaners
VORWERK CO INTERHOLDING19 citations73
US4685170AAug 11, 1987
Bristle component for a floor cleaning nozzle
VORWERK CO INTERHOLDING14 citations72
US4538322ASep 3, 1985
Attachment nozzle for a vacuum cleaning system
VORWERK CO INTERHOLDING12 citations72
US4309048AJan 5, 1982
Element for connecting an accessory instrument to a vacuum cleaner
VORWERK CO INTERHOLDING11 citations72
US5353471AOct 11, 1994
Apparatus for performing work on a floor surface
VORWERK CO INTERHOLDING12 citations71
US4416034ANov 22, 1983
Front-suction arrangement on a vacuum cleaner
VORWERK CO INTERHOLDING6 citations62