Average Co-Inventor Count = 5.83
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. Nippon Steel Corporation (2 from 3,548 patents)
2 patents:
1. 6017380 - Top-blown refining method in converter featuring excellent
2. 5902374 - Vacuum refining method for molten steel