Average Co-Inventor Count = 2.58
ph-index = 8
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Fichtel & Sachs Ag (15 from 558 patents)
2. Mannesmann Sachs Ag (13 from 353 patents)
3. Zf Sachs Ag (1 from 141 patents)
4. Zf Friedrichshafen Ag (3,428 patents)
29 patents:
1. 6874607 - Friction clutch
2. 6723180 - Friction clutch comprising a friction element formed of flake graphite alloy
3. 6662923 - Pressure plate assembly
4. 6588566 - Pressure plate assembly
5. 6588567 - Pressure plate assembly
6. 6536575 - Clutch disk for a motor vehicle friction clutch
7. 6409002 - Pressure plate subassembly
8. 6352147 - Intermediate disk for a motor vehicle
9. 6302253 - Torque transmission unit
10. 6202817 - Thrust plate assembly with means for securing against displacement
11. 6131715 - Process for connecting a flywheel of a clutch with a clutch
12. 6050382 - Clutch disk for a motor vehicle friction clutch
13. 5984073 - Clutch disk with pivot support
14. 5941356 - Pressure plate assembly for a motor vehicle friction clutch having a
15. 5909789 - Hub body for clutches, especially friction clutches in motor vehicles