Average Co-Inventor Count = 5.22
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 (3 from 3,542 patents)
2. Eddio Corporation (2 from 5 patents)
3 patents:
1. 5107214 - Hot flaw detector with annular injection port for injecting cooling
2. 4818935 - Method and apparatus for non-destructively detecting defects in metal
3. 4429021 - Chromium-plated steel strip having excellent weldability and resistance