Average Co-Inventor Count = 7.00
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. Nitto Chemical Industry Co., Ltd. (1 from 161 patents)
2. Tonen Sekiyukagaku Kabushiki Kaisha (1 from 17 patents)
1 patent:
1. 4914163 - Process for preparing heterocyclic copolymers