Average Co-Inventor Count = 2.00
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. Tokuyama Corporation (2 from 504 patents)
2 patents:
1. 5910516 - Process for production of photochromic cured product
2. 5880170 - Photopolymerizable composition and transparent cured product thereof