Average Co-Inventor Count = 3.45
ph-index = 3
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. Mannesmann Sachs Ag (3 from 353 patents)
2. Zf Sachs Ag (1 from 141 patents)
3. Zf Friedrichshafen Ag (3,430 patents)
4 patents:
1. 6986289 - Torque-detecting arrangement or wear detecting arrangement for a friction clutch
2. 6540057 - Actuation device for a friction clutch
3. 6234290 - Actuating installation for pneumatic clutch actuation with overload protection and/or incorrect-operation protection
4. 6050382 - Clutch disk for a motor vehicle friction clutch