Patent assignee · US · COMPANY

WETROK AG

9Patents
1Active
9Granted
29Portfolio score

Filing activity: Sep 28, 1979 → Oct 30, 2012

Most-cited patents

PatentTitleAreaCited byStatus
US4492002A Floor cleaning machine Human Necessities 52 Expired
US4339841A Squeegee support assembly for automatic floor cleaning machines Human Necessities 36 Expired
US4380844A Automatic floor cleaning machine Human Necessities 33 Expired
US4483041A Support for a squeegee assembly Human Necessities 22 Expired
US4272861A Carpet cleaning device Human Necessities 19 Expired
US4392787A Diaphragm pump Mechanical Engineering; Lighting; Heating 9 Expired
US4364138A Automatic floor cleaning machine with removable drive carriage Human Necessities 6 Expired
US4406980A Speed and direction control mechanism Electricity 1 Expired
US9107556B2 Floor cleaning apparatus Human Necessities 0 Active

Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.