Vacuumatic Limited
8Patents
1Active
8Granted
26Portfolio score
Filing activity: Sep 19, 1974 → Sep 11, 2009
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4458519A | Air pressure operated proximity sensor | Physics | 9 | Expired |
| US4109780A | Conveyor systems with gating arrangement | Performing Operations; Transporting | 5 | Expired |
| US4141443A | Conveyor system for delivering articles in succession | Performing Operations; Transporting | 4 | Expired |
| US3962564A | Apparatus for counting a stack of sheets | Physics | 3 | Expired |
| US4355796A | Apparatus for separating sheets from a stack | Performing Operations; Transporting | 2 | Expired |
| US8409067B2 | Leaflet production | Performing Operations; Transporting | 1 | Active |
| US6829320B2 | Counting and tabbing apparatus | Performing Operations; Transporting | 0 | Expired |
| US4543658A | Sheet separating device for a sheet counting apparatus | Performing Operations; Transporting | 0 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.