Average Co-Inventor Count = 2.67
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. Eastman-kodak Company (1 from 21,595 patents)
2. Ferrania, S.p.a. (1 from 21 patents)
2 patents:
1. 6878512 - Silver halide tabular grain emulsion
2. 6534255 - Light-sensitive silver halide photographic element