Ermanco Incorporated
10Patents
0Active
10Granted
27Portfolio score
Filing activity: May 16, 1978 → Aug 6, 2002
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4962841A | Opposite direction transfer device | Performing Operations; Transporting | 76 | Expired |
| US4730718A | Bi-directional transfer mechanism | Performing Operations; Transporting | 66 | Expired |
| US4264002A | Divider switch for roller conveyors | Performing Operations; Transporting | 48 | Expired |
| US5042644A | Zero pressure accumulation conveyor and trigger assembly | Performing Operations; Transporting | 26 | Expired |
| US4372442A | Torque-transmitting drive | Performing Operations; Transporting | 19 | Expired |
| US4887707A | Interlocking torque tube-pulley assembly for live roller line shaft conveyors | Performing Operations; Transporting | 19 | Expired |
| US4819788A | Zero pressure accumulation conveyor and brake assembly | Performing Operations; Transporting | 17 | Expired |
| US5007526A | Conveyor curve and live roller, line shaft conveyor system incorporating same | Performing Operations; Transporting | 7 | Expired |
| US6035998A | Dual sensor trigger assembly for live roller conveyors | Performing Operations; Transporting | 5 | Expired |
| US6685005B2 | Skewed-roller belt drive for belt-driven roller conveyor | Performing Operations; Transporting | 4 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.