Fichtel & Sachs
548Patents
0Active
548Granted
46Portfolio score
Filing activity: Sep 10, 1973 → Apr 13, 1999
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5318486A | Driving hub for a vehicle, particularly a bicycle, with an infinitely adjustable transmission ratio | Mechanical Engineering; Lighting; Heating | 272 | Expired |
| US5236403A | Driving hub for a vehicle, particularly a bicycle, with an infinitely variable adjustable transmission ratio | Mechanical Engineering; Lighting; Heating | 239 | Expired |
| US5069655A | Driving hub for a vehicle | Mechanical Engineering; Lighting; Heating | 227 | Expired |
| US5273501A | Driving hub for a vehicle | Performing Operations; Transporting | 173 | Expired |
| US5799541A | Twist-grip shifter for bicycles and a bicycle having a twist-grip shifter | Emerging Cross-Sectional Technologies | 141 | Expired |
| US6035979A | Vibration damper and a vibration damper with a damping valve having an adjustable damping force | Mechanical Engineering; Lighting; Heating | 116 | Expired |
| US5398787A | Damping pilot valve having vibration damper-related characteristic curves | Mechanical Engineering; Lighting; Heating | 104 | Expired |
| US5738603A | Derailleur | Performing Operations; Transporting | 103 | Expired |
| US5392885A | Adjustable hydraulic vibration damper for motor vehicles | Mechanical Engineering; Lighting; Heating | 99 | Expired |
| US5937975A | Vibration damper for a motor vehicle and a vibration damper having a damping valve with adjustable damping force for a motor vehicle | Mechanical Engineering; Lighting; Heating | 95 | Expired |
| US5699885A | Vibration damper with adjustable damping force | Mechanical Engineering; Lighting; Heating | 93 | Expired |
| US5413196A | Oscillation damper | Mechanical Engineering; Lighting; Heating | 91 | Expired |
| US5372224A | Oscillation damper | Mechanical Engineering; Lighting; Heating | 89 | Expired |
| US5651433A | Fluid operated oscillation damper | Emerging Cross-Sectional Technologies | 89 | Expired |
| US4311302A | Shock absorber device | Performing Operations; Transporting | 82 | Expired |
| US5698905A | Hybrid propulsion system for a motor vehicle and a method of operating the hybrid propulsion system | Emerging Cross-Sectional Technologies | 63 | Expired |
| US5755302A | Drive arrangement for a hybrid vehicle | Emerging Cross-Sectional Technologies | 61 | Expired |
| US5503598A | Derailleur arrangement, in particular for bicycles | Performing Operations; Transporting | 61 | Expired |
| US5485417A | Process and arrangement for controlling a vibration damper | Performing Operations; Transporting | 57 | Expired |
| US4208648A | Sensor panel for locating a load | Physics | 54 | Expired |
| US5678646A | Propulsion system and kit for hybrid motor vehicle | Emerging Cross-Sectional Technologies | 53 | Expired |
| US5357177A | Electrical adjustment device | Performing Operations; Transporting | 53 | Expired |
| US5632361A | Vibration damper, in particular for motor vehicles | Mechanical Engineering; Lighting; Heating | 52 | Expired |
| US4328960A | Fluid damping unit featuring combined fluidic and spring damping characteristics | Mechanical Engineering; Lighting; Heating | 51 | Expired |
| US5829542A | Motor vehicle having drive assemblies with various track distances | Emerging Cross-Sectional Technologies | 48 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.