Inventor
TERPSTRA CHRISTOPHER
US19 patents
Patents
19 patentsUSD857312SAug 20, 2019
Surface cleaning device handle
RUG DOCTOR LLC28 citations93
USD843733SMar 26, 2019
Brush roll
RUG DOCTOR LLC19 citations93
US10743734B2Aug 18, 2020
Surface cleaning apparatus
RUG DOCTOR LLC7 citations83
US10674881B2Jun 9, 2020
Liquid extraction apparatus and method
RUG DOCTOR LLC10 citations83
USD857315SAug 20, 2019
Surface cleaning device shaft
RUG DOCTOR LLC12 citations83
US10610076B2Apr 7, 2020
Liquid extraction apparatus
RUG DOCTOR LLC4 citations72
USD875334SFeb 11, 2020
Surface cleaning system
RUG DOCTOR LLC2 citations72
USD874766SFeb 4, 2020
Surface cleaning head
RUG DOCTOR LLC4 citations72
USD873625SJan 28, 2020
Tank caddy
RUG DOCTOR LLC3 citations72
USD873512SJan 21, 2020
Surface cleaning system
RUG DOCTOR LLC5 citations72
USD869111SDec 3, 2019
Nozzle
RUG DOCTOR LLC5 citations72
USD869113SDec 3, 2019
Surface cleaning device handle
RUG DOCTOR LLC4 citations72
USD869112SDec 3, 2019
Nozzle
RUG DOCTOR LLC4 citations72
USD861267SSep 24, 2019
Surface cleaning attachment
RUG DOCTOR LLC3 citations72
USD857320SAug 20, 2019
Recovery tank
RUG DOCTOR LLC2 citations72
USD857319SAug 20, 2019
Cleaning fluid tank
RUG DOCTOR LLC2 citations72
USD849344SMay 21, 2019
Surface cleaning system
RUG DOCTOR LLC3 citations72
USD874767SFeb 4, 2020
Surface cleaning head
RUG DOCTOR LLC0 citations51
USD872399SJan 7, 2020
Surface cleaning head
RUG DOCTOR LLC0 citations51