Average Co-Inventor Count = 5.00
ph-index = 4
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 (4 from 3,576 patents)
2. Nippn Steel Corporation (1 from 1 patent)
5 patents:
1. RE42668 - Pearlitic steel rail having excellent wear resistance and method of producing the same
2. RE42360 - Pearlitic steel rail having excellent wear resistance and method of producing the same
3. RE41033 - Pearlitic steel rail having excellent wear resistance and method of producing the same
4. RE40263 - Pearlitic steel rail having excellent wear resistance and method of producing the same
5. 5762723 - Pearlitic steel rail having excellent wear resistance and method of