Average Co-Inventor Count = 2.00
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. Produits Chimiques Ugine Kuhlmann (1 from 256 patents)
2. P C U K Produits Chimiques Ugine Kuhlmann (1 from 51 patents)
2 patents:
1. 4318988 - Process for biological denitrification of effluents
2. 4209390 - Process for biological denitrification of effluents