Learn more

ELF FRANCE

Overview
  • Total Patents
    820
About

ELF FRANCE has a total of 820 patent applications. Its first patent ever was published in 1967. It filed its patents most often in France, United States and Japan. Its main competitors in its focus markets basic materials chemistry, macromolecular chemistry and polymers and chemical engineering are CHEVRON RES & TECH, TOTALFINAELF FRANCE and AGIP PETROLI.

Patent filings per year

Chart showing ELF FRANCEs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Maldonado Paul 80
#2 Trema Daniel 48
#3 Demangeon Francis 41
#4 Grangette Henri 36
#5 Bernasconi Christian 36
#6 Fayard Jean-Claude 34
#7 Bousquet Jacques 34
#8 Hagenbach Germain 29
#9 Eber Daniele 27
#10 Faure Alain 26

Latest patents

Publication Filing date Title
US5508112A Process for the preparation of bitumen-polymer composition
US5269954A Nitrogenous additives with an antioxidant action and lubricating compositions containing the said additives
US5268029A Cationic emulsions of bituminous binders of the type bitumen/polymer and cationic emulsifying system preferably utilizable for obtaining said emulsions
FR2674891A1 Transportable distribution station.
FR2673386A1 Hydroraffinage catalyst containing ruthenium sulfide, its synthesis and hydroraffinage process using the same.
FR2670498A1 Bitumen / polymer composition having very low thermal susceptibility, process for its preparation and application of this composition to the production of coatings.
FR2670497A1 Bitumen / polymer component for use in forming bitumen / polymer compositions with very low thermal susceptibility applicable to the production of coatings.
FR2664900A1 Process for preparing an aqueous emulsion a bitumen / polymer binder with continuous three-dimensional polymeric structure and application of this binder to the production of coatings or coatings.
US5062977A Sulphur-containing additives to lubricants with antiwear and extreme-pressure effect and the processes for their preparation and compositions containing the said additives
FR2661114A1 Hydro-refining catalyst of hydrocarbon charges containing trisulfide: of niobium and hydro-refining process using said catalyst.
FR2660756A1 DEVICE AND METHOD FOR IMPROVING THE EVALUATION OF THE PERFORMANCE OF A LUBRICANT.
FR2657620A1 Process for the stabilization of gas oils derived from catalytic cracking, gas oil obtained thereby and compositions containing said gas oil.
FR2656812A1 Process for breaking used cutting oils.
WO9007443A1 Car braking system
FR2656323A1 Bituminous binder emulsion with controlled viscosity by addition of scleroglucane.
FR2649117A1 Bitumen / polymer composition having a high-temperature storage adhesivity and process for preparing such a composition
US4946580A Binary zeolitic systems, their synthesis and their utilization
EP0341147A2 Use as Lubricating additives having EP, antiwear and antioxidant properties, process for preparing same and lubricant compositions containing said additives.
FR2645637A1 Device for adjusting the geometry of a vehicle wheel
FR2645141A1 Process for the synthesis of precursors of molecular sieves of the silicoaluminophosphate type, precursors obtained and their application for obtaining said molecular sieves