Inventor · disambiguated record
Jean-Louis Portefaix
Also filed as: PORTEFAIX JEAN-LOUIS
3 granted patents·6 citations·filing 1991–1992
60Inventor score
Top patents by PatentIndex Score
3 records- 0132US5294333AHydrorefining process employing a niobium trisulfide-containing catalystELF FRANCE·Filed 1992·Granted Mar 15, 1994·3 cites·6 claims
- 0232US5157009ACatalyst for hydrorefining hydrocarbon feedstocks containing niobium trisulphideELF FRANCE·Filed 1991·Granted Oct 20, 1992·3 cites·5 claims
- 0323US5356846AHydrorefining catalyst containing ruthenium sulphide, its synthesis and hydrorefining process using the said catalystELF ANTAR FRANCE·Filed 1992·Granted Oct 18, 1994·0 cites·27 claims
Join the waitlist — get patent alerts
Get an alert when Jean-Louis Portefaix files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →