Inventor
PROFFITT II DONALD E
US4 patents
Patents
4 patentsUS7555810B2Jul 7, 2009
Vacuum cleaner with wand activated conversion valve
PANASONIC CORP NORTH AMERICA17 citations81
US7752708B2Jul 13, 2010
Floor cleaning apparatus with filter cleaning system
PANASONIC CORP NORTH AMERICA5 citations70
US7908707B2Mar 22, 2011
Floor cleaning apparatus with filter cleaning system
PANASONIC CORP NORTH AMERICA4 citations60
US7647670B2Jan 19, 2010
Vacuum cleaner with final filtration compartment for reducing noise
PANASONIC CORP NORTH AMERICA1 citations48