Average Co-Inventor Count = 2.40
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-geigy Corporation (1 from 6,850 patents)
2. Ciba-geigy Ag (1 from 595 patents)
2 patents:
1. 4111966 - 1,5-Dihydroxy-4,8-diamino-anthraquinone compounds arylated in 3-position
2. 4049656 - Fibre-reactive anthraquinone dyestuffs