Average Co-Inventor Count = 17.01
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. Kyowa Hakko Kogyo Co., Ltd. (3 from 730 patents)
3 patents:
1. 6642355 - Endothelin-antagonizing peptide
2. 6194195 - Strains of streptomyces producing endothelin antagonistic peptides
3. 5639860 - Endothelin-antagonizing peptide