Average Co-Inventor Count = 3.43
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 patents:
1. 6393943 - Electronic-hydraulic control unit for an automatic transmission for vehicles
2. 5878630 - Gear box control cooling