WETROK AG
9Patents
1Active
9Granted
29Portfolio score
Filing activity: Sep 28, 1979 → Oct 30, 2012
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| 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.