Average Co-Inventor Count = 7.00
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. China Pharmaceutical University (1 from 34 patents)
2. Administrative Center of New Drug Research, the State Pharmaceutical (1 from 1 patent)
1 patent:
1. 5470852 - Tetrahydroprotoberberine quaternary ammonium compounds useful in for