A47L 1/12

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Patent/Pub #TitleFiling DateIssue/Publication DatePatent Owner
9492044 Glass wiping device and control method thereofAug 16, 12Nov 15, 16ECOVACS ROBOTICS CO., LTD.
9439545 Window cleaning apparatus capable of supplying power in real-time from inner unit to outer unitNov 08, 12Sep 13, 16INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY
9215956 Glass window cleaning device and a control method thereforNov 04, 10Dec 22, 15INTELLECTUAL DISCOVERY CO., LTD., KOREA INSTITUTE OF ROBOT & CONVERGENCE,
8151401 Variable strength magnetic window cleaning deviceSep 29, 08Apr 10, 12Not available
7784428 Magnetic scrubber assembly and design methodNov 05, 07Aug 31, 10Shenzhen Xing Risheng Industrial Co., Ltd.
7356870 Water pipe cleaning apparatus and methodAug 19, 04Apr 15, 08LAVELLE LAW LTD
6634052 Apparatus for remotely cleaning interior walls of tanks from the tank exteriorJun 19, 01Oct 21, 03BAKKER HOLDING SON B.V.