Average Co-Inventor Count = 8.00
ph-index = 3
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 3,568 patents)
3 patents:
1. 5116504 - Organic polymer separation membrane having fluorene skeleton and oxygen
2. 4975190 - Organic polymer separation membrane having fluorene skeleton and oxygen
3. 4968331 - Organic polymer separation membrane having fluorene skeleton and oxygen