Average Co-Inventor Count = 12.00
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. Instituto Nazionale Per Lo Studio E La Cura Dei Tumori (1 from 3 patents)
1 patent:
1. 7273873 - Camptothecins with a modified lactone ring