Average Co-Inventor Count = 12.00
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. Zenyaku Kogyo Kabushiki Kaisha (1 from 41 patents)
1 patent:
1. 9132130 - Purine derivative and antitumor agent using same