Average Co-Inventor Count = 4.00
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 Zeon Company, Ltd. (2 from 598 patents)
2 patents:
1. 5905129 - Ring-opening polymer hydrogenation products
2. 5725960 - Molded articles having hard coat layer and method for producing same