Average Co-Inventor Count = 5.00
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. Elf France (2 from 113 patents)
2. Elf Antar France (1 from 52 patents)
3 patents:
1. 5356846 - Hydrorefining catalyst containing ruthenium sulphide, its synthesis and
2. 5294333 - Hydrorefining process employing a niobium trisulfide-containing catalyst
3. 5157009 - Catalyst for hydrorefining hydrocarbon feedstocks containing niobium