Average Co-Inventor Count = 4.00
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. Farmitalia Carlo Erba S.r.l. (1 from 140 patents)
2. Pharmacia & Upjohn (1 from 117 patents)
2 patents:
1. 5847127 - Process for the preparation of 2,2'-bipyrrolyl-pyrromethene
2. 5342948 - Process for the preparation of