Average Co-Inventor Count = 4.00
ph-index = 2
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. Zf Friedrichshafen Ag (2 from 3,444 patents)
2. Zahnradfabrik Friedrichshafen, Ag. (1 from 416 patents)
3 patents:
1. 5852931 - Automatic transmission with a positive-displacement pump
2. 5645406 - Transmission assembly with positive-displacement pump with suction
3. 5190130 - Process for regulating a clutch