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. Nippon Steel Corporation (2 from 3,563 patents)
2 patents:
1. 4692191 - Method of improving functions of surface of alloy steel by means of
2. 4612095 - Method for improving corrosion resistance of bright annealed stainless