Average Co-Inventor Count = 4.44
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. Basf Farben and Fasern Ag (2 from 66 patents)
2 patents:
1. 4247296 - Diazo pigments
2. 4222788 - Mixed pigment and process of preparing the same