Marubeni Corporation
4Patents
0Active
4Granted
28Portfolio score
Filing activity: Sep 5, 1974 → Mar 4, 1991
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5141133A | Pouring plug of a container | Performing Operations; Transporting | 59 | Expired |
| US4145397A | Process for recovering molybdenum, vanadium, cobalt and nickel from roasted products of used catalysts from hydrotreatment desulfurization of petroleum | Emerging Cross-Sectional Technologies | 48 | Expired |
| US4223044A | Method for breaking a bridge of particulate and ground substances | Performing Operations; Transporting | 21 | Expired |
| US3999646A | Cylindrical belt conveyor system | Performing Operations; Transporting | 7 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.