ZF Sachs AG
141Patents
1Active
141Granted
39Portfolio score
Filing activity: Apr 11, 2001 → Nov 29, 2006 · 1 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7135794B2 | Spring support having a height-adjustable spring plate | Emerging Cross-Sectional Technologies | 110 | Expired |
| US6789658B2 | Clutch system | Mechanical Engineering; Lighting; Heating | 37 | Expired |
| US6814193B2 | Vibration damper with a hydraulic pressure stop | Mechanical Engineering; Lighting; Heating | 33 | Expired |
| US6915886B2 | Bridging clutch | Mechanical Engineering; Lighting; Heating | 33 | Expired |
| US6881171B2 | Method for the operation of a multiple clutching device and a power shift transmission | Emerging Cross-Sectional Technologies | 32 | Expired |
| US6827191B2 | Clutch system with at least one multiple-plate clutch arrangement | Emerging Cross-Sectional Technologies | 31 | Expired |
| US6814204B2 | Clutch unit for a motor vehicle | Mechanical Engineering; Lighting; Heating | 23 | Expired |
| US7073646B2 | Torsional vibration damper | Mechanical Engineering; Lighting; Heating | 20 | Expired |
| US6915885B2 | Oscillation damper with adjustable damping force | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| US7077248B2 | Suspension strut unit with a stop buffer | Performing Operations; Transporting | 17 | Expired |
| US6648309B2 | Self-pumping hydropneumatic suspension strut with internal ride-height control | Emerging Cross-Sectional Technologies | 16 | Expired |
| US7114605B2 | Double or multiple disk coupling device and disk arrangement therefor | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US7021434B2 | Self-pumping hydropneumatic suspension strut | Emerging Cross-Sectional Technologies | 14 | Expired |
| US6951526B2 | Motor vehicle comprising a drive train having a multiple clutch drive | Emerging Cross-Sectional Technologies | 13 | Expired |
| US6619445B2 | Telescopic vibration damper | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US6707186B2 | Stator for an electric machine | Electricity | 12 | Expired |
| US6889811B2 | Hydraulically operated clutch system | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US6851531B2 | Hydrodynamic clutch device | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US6814205B2 | Multi-disk clutch arrangement | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US6830140B2 | Clutch device connected centrally on the input side to a rotating shaft or rotating component in a motor vehicle drive train | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US7147095B2 | Gearshift transmission for a motor vehicle with hydraulically actuated multiple clutch | Emerging Cross-Sectional Technologies | 10 | Expired |
| US6910561B2 | Clutch arrangement | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US6871845B2 | Self-pumping, hydropneumatic suspension strut unit | Performing Operations; Transporting | 9 | Expired |
| US6923433B2 | Pneumatic spring with integrated control valve | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US6830139B2 | Multi-clutch arrangement | Mechanical Engineering; Lighting; Heating | 9 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.