Average Co-Inventor Count = 3.43
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. Ferrania, S.p.a. (2 from 21 patents)
2 patents:
1. 6348305 - Photographic element with a layer improving the adhesion to the support base
2. 6261752 - Alkaline soluble mixture composed of cellulose derivatives