Average Co-Inventor Count = 6.00
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. Societe Nationale Elf Aquitaine (1 from 235 patents)
2. Entreprise De Recherches Et D'activites Petrolieres Elf (1 from 2 patents)
2 patents:
1. 4044069 - Catalytic composition for the isomerization and alkylation of
2. 3960764 - Catalytic composition for the conversion of hydrocarbons