SUMITOMO CONSTRUCTION MACHINERY CO., LTD.
195Patents
186Active
195Granted
60Portfolio score
Filing activity: Dec 8, 1992 → Apr 11, 2024 · 13 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6499612B1 | Telescoping boom assembly with rounded profile sections and interchangeable wear pads | Performing Operations; Transporting | 20 | Expired |
| US6702132B1 | Crane self-assembly system | Performing Operations; Transporting | 16 | Expired |
| US8639404B2 | Working machine | Emerging Cross-Sectional Technologies | 15 | Active |
| US6595719B1 | Screed device in a road-paving vehicle such as asphalt finisher | Fixed Constructions | 13 | Expired |
| US6357773B1 | Pull out locking cab step assembly | Fixed Constructions | 11 | Expired |
| US6848522B2 | Systems for connecting a ground-engaging motive device to a vehicle and related methods | Performing Operations; Transporting | 11 | Expired |
| US9518370B2 | Shovel and method of controlling shovel | Fixed Constructions | 10 | Active |
| US8285434B2 | Hybrid-type construction machine having an output condition calculating unit to calculate output conditions of an engine and an electric storage device | Electricity | 10 | Active |
| US10391940B2 | Construction machine | Fixed Constructions | 9 | Active |
| US5348171A | Removable outrigger for mobile crane | Performing Operations; Transporting | 9 | Expired |
| US6131750A | Connection system for boom extension | Performing Operations; Transporting | 9 | Expired |
| US8972122B2 | Shovel and method for controlling shovel | Fixed Constructions | 9 | Active |
| US8798875B2 | Working machine | Emerging Cross-Sectional Technologies | 7 | Active |
| US9382687B2 | Shovel and method of controlling shovel | Fixed Constructions | 7 | Active |
| US9725884B2 | Hydraulic circuit for construction machine and control device for same | Mechanical Engineering; Lighting; Heating | 7 | Active |
| US9715015B2 | Periphery-monitoring device for working machines | Electricity | 6 | Active |
| US11015319B2 | Vehicle shovel | Fixed Constructions | 6 | Active |
| US9464409B2 | Shovel | Fixed Constructions | 6 | Active |
| US9932994B2 | Hydraulic circuit for construction machine and control device therefor | Mechanical Engineering; Lighting; Heating | 6 | Active |
| US9903097B2 | Hydraulic circuit for construction machine | Mechanical Engineering; Lighting; Heating | 5 | Active |
| US6601719B2 | Locking and latching system for a telescoping boom | Performing Operations; Transporting | 5 | Expired |
| US8818648B2 | Hybrid construction machine | Emerging Cross-Sectional Technologies | 5 | Active |
| US9108516B2 | Working machine | Emerging Cross-Sectional Technologies | 5 | Active |
| US9725008B2 | Hybrid type construction machine | Emerging Cross-Sectional Technologies | 5 | Active |
| US8437923B2 | Rotation drive control unit and construction machine including same | Electricity | 5 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.