Average Co-Inventor Count = 6.00
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. Toyama Chemical Co., Ltd. (2 from 159 patents)
2 patents:
1. 6153613 - 2,3-diketopiperazine derivatives or their salts
2. 5877174 - 2,3-diketopiperazine derivatives or their salts