Average Co-Inventor Count = 4.00
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. Zeneca Limited (1 from 854 patents)
1 patent:
1. 5668137 - N-heterocyclic sulfonamides having endothelin receptor activity