AKTIEBOLAGET SKF
2,046Patents
1,740Active
2,046Granted
62Portfolio score
Filing activity: May 19, 1977 → Feb 15, 2024 · 179 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4190301A | Axial bearing for a roller drill bit | Mechanical Engineering; Lighting; Heating | 67 | Expired |
| US8550221B2 | Magnetic spring, a spring and damper assembly, and a vehicle including the spring | Mechanical Engineering; Lighting; Heating | 37 | Active |
| US5503030A | Load sensing bearing | Mechanical Engineering; Lighting; Heating | 36 | Expired |
| US6241257A | Fastening device for belt pulleys | Mechanical Engineering; Lighting; Heating | 34 | Expired |
| US4946296A | Device for sealing and generating electrical pulses | Mechanical Engineering; Lighting; Heating | 32 | Expired |
| US4705411A | Radial rolling bearing | Mechanical Engineering; Lighting; Heating | 28 | Expired |
| US9790818B2 | Mechanical system forming a cam follower or a rocker arm, injection pump or valve actuator comprising such a mechanical system and method for manufacturing such a mechanical system | Mechanical Engineering; Lighting; Heating | 28 | Active |
| US4647230A | Arangement for fastening a rolling bearing in a housing | Emerging Cross-Sectional Technologies | 27 | Expired |
| US4911610A | Drive mechanism for pumps | Mechanical Engineering; Lighting; Heating | 27 | Expired |
| US7695385B2 | Belt roller device | Mechanical Engineering; Lighting; Heating | 26 | Active |
| US4848938A | Ring-shaped machine part | Mechanical Engineering; Lighting; Heating | 25 | Expired |
| US5039231A | Bearing cage | Mechanical Engineering; Lighting; Heating | 24 | Expired |
| US4298079A | Rotary drill bit | Mechanical Engineering; Lighting; Heating | 24 | Expired |
| US4611931A | Sealed roller bearing | Mechanical Engineering; Lighting; Heating | 24 | Expired |
| US4597492A | Conveyor chain | Performing Operations; Transporting | 24 | Expired |
| US4159828A | Sealing device | Mechanical Engineering; Lighting; Heating | 23 | Expired |
| US4967897A | Conveyor with a multiple part beam | Performing Operations; Transporting | 22 | Expired |
| US4505493A | Slalom ski binding | Human Necessities | 22 | Expired |
| US5026324A | Sealing device for bearings, particularly bearing bushings of universal joints | Mechanical Engineering; Lighting; Heating | 22 | Expired |
| US6119547A | Automatic balancing device | Emerging Cross-Sectional Technologies | 21 | Expired |
| US4872768A | Swivel bearing for braking devices | Mechanical Engineering; Lighting; Heating | 21 | Expired |
| US8172056B2 | Disengageable pulley device | Mechanical Engineering; Lighting; Heating | 20 | Active |
| US5685068A | Method for mounting bearings with tapered bore and bearing constructed to achieve desired internal bearing clearance | Emerging Cross-Sectional Technologies | 20 | Expired |
| USD325277S | Interlocking linear structure for conveyors or the like | General | 20 | Expired |
| US5772338A | Flange or raceway guided plastic cage for bearing assembly | Mechanical Engineering; Lighting; Heating | 20 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.