Marshall Elevator Company
1Patents
1Active
1Granted
42Portfolio score
Filing activity: Oct 30, 2007 → Oct 30, 2007 · 1 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7802337B2 | Retractable ramp | Emerging Cross-Sectional Technologies | 14 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.