Average Co-Inventor Count = 4.21
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 (4 from 10,754 patents)
4 patents:
1. 4937338 - Pigments
2. 4925954 - Vat dye based on flouranthene
3. 4851549 - Pigments
4. 4785088 - Pigments and their preparation