Average Co-Inventor Count = 3.00
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 3,554 patents)
2. Krosaki Corporation (1 from 14 patents)
3. Harima Ceramic Co. Ltd. (1 from 5 patents)
1 patent:
1. 5204298 - Basic monolithic refractories