Average Co-Inventor Count = 2.25
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. Hoechst Aktiengesellschaft (3 from 6,662 patents)
3 patents:
1. 4221793 - N,N'-Disubstituted piperazine derivative
2. 4160828 - Analgesic phosphinyl compounds and compositions
3. 4091095 - Phosphinyl compounds