DH

Douglas Hauff

Overall (All Time): #2,153,991 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
7171721 Cleaning apparatus for dispensing a heated cleaning fluid Steve Williams, William A. Fuglevand, Greg Lloyd 2007-02-06
6481048 Three tank carpet spotter Dennis Duerr, Steven Graham Williams 2002-11-19