Inventor

LEGER ROBERT

FR14 patents

⚠️ This page may combine multiple inventors who share the name “LEGER ROBERT”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

INST FRANCAIS DU PETROLE

9 patents

US5001202AMar 19, 1991

Polymers derived from unsaturated polyesters by addition of compounds with an amine function and their use as additives modifying the properties of petroleum middle distillates when cold

INST FRANCAIS DU PETROLE53 citations95

US4900332AFeb 13, 1990

Nitrogenous copolymers, their preparation and use as additives for improving the pour properties of hydrocarbon middle distillates

INST FRANCAIS DU PETROLE40 citations92

US4731095AMar 15, 1988

Nitrogen containing copolymers useful as additives for lowering the cloud point of hydrocarbon middle distillates and compositions containing them

INST FRANCAIS DU PETROLE46 citations92

US4652273AMar 24, 1987

Hydrocarbon middle distillates composition containing nitrogen-containing additives for decreasing its cloud point

INST FRANCAIS DU PETROLE49 citations92

US4511369AApr 16, 1985

Copolymers with nitrogen groups, useful as additives for decreasing the cloud point of hydrocarbon middle distillates and compositions containing them

INST FRANCAIS DU PETROLE41 citations92

US5106515AApr 21, 1992

Polymers derived from unsaturated polyesters by addition of compounds with an amine function and their use as additives modifying the properties of petroleum middle distillates when cold

INST FRANCAIS DU PETROLE17 citations81

US4503182AMar 5, 1985

Copolymers useful as additives for lowering the cloud point of middle hydrocarbon distillates, and compositions of middle hydrocarbon distillates comprising them

INST FRANCAIS DU PETROLE10 citations73

US5449386ASep 12, 1995

Amine phosphates having a terminal cyclic imide

INST FRANCAIS DU PETROLE15 citations71

US6860908B2Mar 1, 2005

Petroleum middle distillate composition containing a substance for limiting the paraffin sedimentation rate

INST FRANCAIS DU PETROLE0 citations40

ELF ANTAR FRANCE

2 patents

US5725610AMar 10, 1998

Additive composition for cold operability of middle distillates

ELF ANTAR FRANCE7 citations70

US6623536B1Sep 23, 2003

Multifunctional additive composition for cold process treatment of middle distillates

ELF ANTAR FRANCE1 citations42

ELF UNION

1 patent

US4154710AMay 15, 1979

Method of preparing novel bitumen compositions

ELF UNION34 citations92

ELF FRANCE

1 patent

US4374282AFeb 15, 1983

Ethers of polyols, their preparation and use

ELF FRANCE17 citations72

GREENE MFG CO

1 patent

US5655298AAug 12, 1997

Method for joining a tube and a plate

GREENE MFG CO2 citations61