Average Co-Inventor Count = 2.40
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. Ciba-geigy Corporation (2 from 6,850 patents)
2 patents:
1. 4432898 - Sulfo-substituted fibre-reactive 1:2-chromium complex azo dyes
2. 4210582 - Water-soluble pyrazolone-imide containing azo dyestuffs