Average Co-Inventor Count = 6.86
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. Nippon Steel Corporation (2 from 3,562 patents)
2 patents:
1. 4091147 - Welded steel products having low sensitivity to weld cracking and a
2. 4061494 - Free-cutting graphitic steel