Inventor
OSTENDORF CHARLES MICHAEL
US6 patents
Patents
6 patentsUS9706893B2Jul 18, 2017
Liquid extraction cleaning device and method
RUG DOCTOR LLC6 citations83
US9282869B2Mar 15, 2016
Liquid extraction cleaning device and method
RUG DOCTOR LLC9 citations83
US9788700B2Oct 17, 2017
Liquid extraction cleaning device and method
RUG DOCTOR LLC2 citations72
US9717386B2Aug 1, 2017
Liquid extraction cleaning device
RUG DOCTOR LLC2 citations72
US9788699B2Oct 17, 2017
Liquid extraction cleaning device and method
RUG DOCTOR LLC0 citations51
US9538893B2Jan 10, 2017
Liquid extraction cleaning device
RUG DOCTOR LLC1 citations51