Gunderson LLC
🏢 View company profile →84Patents
45Active
84Granted
47Portfolio score
Filing activity: Aug 14, 1984 → Aug 3, 2023 · 13 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5373792A | Railway gondola car incorporating flexible panels of composite sheet material | Emerging Cross-Sectional Technologies | 117 | Expired |
| US5743192A | Railroad freight car for carrying motor vehicles | Performing Operations; Transporting | 55 | Expired |
| US4624188A | Stack supporting container car | Performing Operations; Transporting | 39 | Expired |
| US5423269A | Railroad well car body including side sill reinforcing walkway structure | Performing Operations; Transporting | 37 | Expired |
| US4703699A | Lightweight container car | Performing Operations; Transporting | 36 | Expired |
| US4756256A | Aerodynamic drag reduction for railcars | Emerging Cross-Sectional Technologies | 35 | Expired |
| US5279230A | Railroad well car body | Performing Operations; Transporting | 35 | Expired |
| US5979335A | Railroad freight car for carrying motor vehicles | Performing Operations; Transporting | 35 | Expired |
| US5794537A | Deck-edge hinge for loading bridge | Performing Operations; Transporting | 34 | Expired |
| US5054403A | Railroad freight car with well for stacked cargo containers | Emerging Cross-Sectional Technologies | 33 | Expired |
| US5626083A | Railroad car with lightweight center beam structure | Emerging Cross-Sectional Technologies | 32 | Expired |
| US4599949A | Light weight container car | Performing Operations; Transporting | 32 | Expired |
| US4893567A | Railroad freight car with well for stacked cargo containers | Emerging Cross-Sectional Technologies | 30 | Expired |
| US5207161A | Side bearing arrangement for multi-unit railroad cars with different side bearings on adjacent car ends sharing a common truck | Performing Operations; Transporting | 25 | Expired |
| US5170718A | Railroad freight car with well for stacked cargo containers | Emerging Cross-Sectional Technologies | 24 | Expired |
| US6546878B1 | Multi-unit railroad freight car for carrying cargo containers | Performing Operations; Transporting | 22 | Expired |
| US5216285A | Freight car with electrical power distribution | Emerging Cross-Sectional Technologies | 22 | Expired |
| US5758584A | Railroad car with lightweight center beam structure | Emerging Cross-Sectional Technologies | 20 | Expired |
| US9174656B2 | Insulative railway boxcar | Performing Operations; Transporting | 17 | Active |
| US5611285A | Multipurpose railraod well car | Performing Operations; Transporting | 16 | Expired |
| US4930426A | Device for changing the effective width of a container well of a freight car | Performing Operations; Transporting | 15 | Expired |
| US4905795A | Handbrake operating linkage for multi-unit rail cars | Emerging Cross-Sectional Technologies | 15 | Expired |
| US6431085B1 | Center beam car with depressed cargo-carrying area | Performing Operations; Transporting | 15 | Expired |
| US6357363B1 | Railroad tank car | Performing Operations; Transporting | 15 | Expired |
| US6523484B2 | Center beam car with depressed cargo-carrying area | Performing Operations; Transporting | 14 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.