Average Co-Inventor Count = 8.31
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. Kowa Company Limited (3 from 591 patents)
3 patents:
1. 6337334 - Pyrimidine derivatives
2. 6008224 - Pyrimidine derivatives
3. 5883092 - Pyrimidine derivatives as endothelin antagonists