RINGSPANN GmbH
24Patents
13Active
24Granted
54Portfolio score
Filing activity: Jan 3, 1990 → Apr 17, 2023 · 2 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5074180A | Clamping system for clamping a cutter roller in axially shiftable position on a shaft | Emerging Cross-Sectional Technologies | 12 | Expired |
| US5010992A | Axially operating positioning element, particularly for a friction clutch structure | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US5058438A | Torque measuring instrument | Physics | 5 | Expired |
| US7077246B2 | Fall safety device | Performing Operations; Transporting | 5 | Expired |
| US6450693B1 | Bearing arrangement for a shaft supporting a rotating tool | Performing Operations; Transporting | 5 | Expired |
| US5347866A | Quick-clamping and centering system for wheel balancing apparatus | Physics | 4 | Expired |
| US5314381A | Detent arrangement for the coupling pin of an overload element, particularly in an overload clutch | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US5165288A | Apparatus for measuring torque | Physics | 3 | Expired |
| US5645149A | Freewheel-retainer ring with centrifugal force takeoff | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US5052843A | Coupling | Emerging Cross-Sectional Technologies | 3 | Expired |
| US8104751B2 | Device for holding a double clutch in a balancing machine | Physics | 2 | Active |
| US10215242B2 | Electromagnetic active brake | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US9662715B2 | Clamping fixture | Emerging Cross-Sectional Technologies | 1 | Active |
| US5353648A | Torque transmitter | Physics | 1 | Expired |
| US8813931B2 | Free-wheel cage ring with centrifugal-force lifting | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US11808312B2 | Cage freewheel | Mechanical Engineering; Lighting; Heating | 1 | Active |
| USD984334S1 | Brake caliper for machinery | General | 0 | Active |
| US7870940B2 | Frictionally engaged free-wheel clutch | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US10307837B2 | Clamping fixture | Emerging Cross-Sectional Technologies | 0 | Active |
| US9188166B2 | Return stop | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US11859677B2 | Cage freewheel with bearing rollers | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US9809394B2 | Torque-limiting return stop device | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US11624415B2 | Caliper brake | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US9683619B2 | Electromagnetic active brake | Mechanical Engineering; Lighting; Heating | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.