Average Co-Inventor Count = 1.50
ph-index = 1
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 (1 from 3,427 patents)
2. Zahnradfabrik Friedrichshafen, Ag. (1 from 416 patents)
2 patents:
1. 8869963 - Arrangement for shifting a gearbox
2. 5194056 - Automatic transmission for motor vehicles