Average Co-Inventor Count = 3.43
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 Sachs Ag (1 from 141 patents)
2. Zh Friedrichshafen Ag (1 from 1 patent)
2 patents:
1. 8919753 - Spring plate
2. 6974005 - Vibration damper with overload protection