Average Co-Inventor Count = 3.27
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. Ciba-geigy Corporation (2 from 6,850 patents)
2. Ciba Specialty Chemicals Corporation (1 from 1,524 patents)
3 patents:
1. 5716445 - Pigment
2. 5672202 - Pigment compositions
3. 5482548 - Pigment compositions