Average Co-Inventor Count = 8.00
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. Nippon Steel Corporation (1 from 3,563 patents)
2. Nsct Premium Tubulars B.v. (0 patent)
1 patent:
1. 6027145 - Joint for steel pipe having high galling resistance and surface