Average Co-Inventor Count = 3.00
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 Chemical Co., Ltd. (2 from 173 patents)
2. Nippon Steel Corporation (1 from 3,542 patents)
2 patents:
1. 6787631 - Polyarylene sulfide resin
2. 5049169 - Polysulfone separation membrane