Average Co-Inventor Count = 4.20
ph-index = 3
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. Basf Aktiengesellschaft (2 from 10,754 patents)
2. Knoll Aktiengesellschaft (1 from 84 patents)
3 patents:
1. 5457224 - Resolution of racemic verapamil
2. 4968717 - Phenylacetonitriles which are substituted by basic groups, their
3. 4438131 - .OMEGA.-Cyano-1, .OMEGA.-diphenyl-azaalkane derivatives, their