Average Co-Inventor Count = 3.43
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. Janssen Pharmaceutica Nv (2 from 2,077 patents)
2 patents:
1. 6346618 - Optical resolution of narwedine-type compounds
2. 6093815 - Galanthamine derivatives and process for their preparation