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. Shell Oil Comapny (1 from 7,645 patents)
1 patent:
1. 5550194 - Process for making graft block copolymers by grafting anionic polymer