Average Co-Inventor Count = 4.09
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. Ciba Specialty Chemicals Corporation (3 from 1,524 patents)
3 patents:
1. 6858073 - Pigmented vitreous material
2. 6524382 - Pigmented vitreous material
3. 6506244 - Stable polymorphic copper-free phthalocyanine pigment