Average Co-Inventor Count = 2.12
ph-index = 4
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. Zahnradfabrik Friedrichshafen, Ag. (5 from 416 patents)
2. Zf Friedrichshafen Ag (1 from 3,444 patents)
6 patents:
1. 6106427 - Continuously variable transmission
2. 5343779 - Arrangement and process for operating a fail safe braking system in a
3. 5159855 - Continuously variable driving unit of a motor vehicle
4. 5146812 - Arrangement and method for operating a continuously variable drive unit
5. 5135443 - Arrangement and method for operating a variable drive unit
6. 5107722 - Arrangement and method for operating a variable drive unit