Average Co-Inventor Count = 4.80
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 Ag (1 from 595 patents)
2. Ilford Limited (1 from 30 patents)
2 patents:
1. 4948714 - Processing of photographic silver halide materials
2. 4560646 - Protected developing agents