Brevet
3Patents
0Active
3Granted
27Portfolio score
Filing activity: Jul 10, 1975 → Apr 16, 1990
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5000769A | System for ventilating a rail traction motor and for dynamically purifying the ventilation air | Mechanical Engineering; Lighting; Heating | 24 | Expired |
| US4061237A | Forklift truck | Performing Operations; Transporting | 23 | Expired |
| US4401177A | Sliding weight scale | Physics | 1 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.