Average Co-Inventor Count = 3.00
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 6,858 patents)
2 patents:
1. 4299654 - Process for producing sized paper and cardboard with polyelectrolytes
2. 4200489 - Process for producing sized paper or cardboard with dyes or optical