Average Co-Inventor Count = 6.00
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. Sigma-tau Industrie Farmaceutiche Riunite S.p.a. (1 from 343 patents)
2. Istituto Nazionale Per Lo Studio E La Cura Dei Tumori (1 from 14 patents)
1 patent:
1. 7452900 - Esters in position 20 of camptothecins