Average Co-Inventor Count = 4.20
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 3,568 patents)
2 patents:
1. 5454854 - Method of refining molten metal or molten alloy
2. 4198229 - Method of dephosphorization of metal or alloy