Mannesmann AG
1,177Patents
0Active
1,177Granted
46Portfolio score
Filing activity: Oct 22, 1971 → Aug 21, 2002
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5411055A | Flow limiting throttle element | Emerging Cross-Sectional Technologies | 414 | Expired |
| US5889477A | Process and system for ascertaining traffic conditions using stationary data collection devices | Physics | 319 | Expired |
| US5365312A | Arrangement for printer equipment for monitoring reservoirs that contain printing medium | Performing Operations; Transporting | 286 | Expired |
| US6141609A | Device for recording information on a vehicle's itinerary | Physics | 187 | Expired |
| US5919246A | Target input for navigation system | Physics | 128 | Expired |
| US5417051A | Process and installation for the combined generation of electrical and mechanical energy | Emerging Cross-Sectional Technologies | 126 | Expired |
| US6124826A | Navigation device for people | Physics | 115 | Expired |
| US6304758A | Method and system for providing and transmitting individualized traffic information | Physics | 106 | Expired |
| US5721678A | Arrangement for a use billing system | Physics | 105 | Expired |
| US6178374A | Method and device for transmitting data on traffic assessment | Physics | 95 | Expired |
| US5812069A | Method and system for forecasting traffic flows | Physics | 94 | Expired |
| US6081388A | Opto-electronic imaging system for industrial applications | Physics | 87 | Expired |
| US5419624A | Arrangement for detecting a critical driving torque in a motor vehicle | Emerging Cross-Sectional Technologies | 86 | Expired |
| US5101653A | Mechanical pipe expander | Performing Operations; Transporting | 85 | Expired |
| US6438127B1 | Process and apparatus for the operation of virtual private networks on a common data packet communication network | Electricity | 83 | Expired |
| US5048871A | Screwed pipe joint | Emerging Cross-Sectional Technologies | 71 | Expired |
| US5773904A | Electric machine having at least one clutch | Emerging Cross-Sectional Technologies | 70 | Expired |
| US5865393A | Vertical strip storage device | Performing Operations; Transporting | 66 | Expired |
| US5948042A | Method and system for updating digital road maps | Physics | 64 | Expired |
| US5255487A | Door reinforcement tube | Emerging Cross-Sectional Technologies | 59 | Expired |
| US6061625A | Process for obtaining traffic data | Physics | 59 | Expired |
| US5394823A | Pipeline with threaded pipes and a sleeve connecting the same | Mechanical Engineering; Lighting; Heating | 56 | Expired |
| USD429700S | Operating panel | General | 55 | Expired |
| US4611838A | Fluidtight pipe joint | Mechanical Engineering; Lighting; Heating | 55 | Expired |
| US6092020A | Method and apparatus for obtaining traffic situation data | Physics | 55 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.