Average Co-Inventor Count = 3.00
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. Dana Corporation (1 from 1,557 patents)
1 patent:
1. 5901963 - Gas nitrided taper faced keystone piston ring incorporating a sealing