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FR20 patents

Top patents by PatentIndex Score

US4764295AAug 16, 1988

Non-foaming detergent-dispersant additives for lubricating oils and process for making such additives

OROGIL48 citations92
US4168242ASep 18, 1979

Novel alkenyl-substituted oxa-amines and their use as additives for lubricating oils and fuels

OROGIL25 citations82
US4251379AFeb 17, 1981

Detergent-dispersants of high alkalinity for lubricating oils and process for their preparation

OROGIL20 citations81
US4199462AApr 22, 1980

Compositions based on alkenyl succinimides, a method of preparing them, and lubricant compositions containing them

OROGIL19 citations78
US4514313AApr 30, 1985

High alkalinity sulfurized alkylphenates of alkaline earth metals and method of making same

OROGIL18 citations74
US4470916ASep 11, 1984

High alkalinity metallic detergent-dispersant additives for lubricating oils and method of making same

OROGIL10 citations72
US4302342ANov 24, 1981

Process for the preparation of detergent dispersants of high alkalinity for lubricating oils and the product obtained therefrom

OROGIL18 citations72
US4293431AOct 6, 1981

Process of preparing metallic detergent-dispersant additives of high alkalinity in particular for lubricating oils, and product obtained thereby

OROGIL13 citations72
US4094802AJun 13, 1978

Novel lubricant additives

OROGIL13 citations70
US4081388AMar 28, 1978

Compositions based on alkenylsuccinimides as additives for lubricating oils

OROGIL10 citations70
US5035816AJul 30, 1991

Process for preparing superalkalinized detergent-dispersant additives for lubricating oils

OROGIL9 citations68
US5030687AJul 9, 1991

Detergent-dispersant additives based on salts of alkaline-earth and alkali metals for lubricating oils

OROGIL19 citations68
US4042514AAug 16, 1977

Novel lubricating compositions containing derivatives of 1,2-dithiol-3-thiones or 1,2-dithiol-3-ones

OROGIL12 citations67
US4382004AMay 3, 1983

Preparation of magnesium alkylphenates and their use as detergent-dispersant additives for lubricating oils

OROGIL8 citations66
US4751010AJun 14, 1988

Sulfonated and sulfurized detergent-dispersant additives for lubricating oils

OROGIL10 citations63
US4189389AFeb 19, 1980

Novel alkenyl succinimides and process for their preparation

OROGIL2 citations63
US4464289AAug 7, 1984

Super-alkalinized detergent-dispersant additives for lubricating oils and method of making same

OROGIL6 citations61
US4293430AOct 6, 1981

Sulfurized metallic dithiophosphates and their use as additives for lubricating oils

OROGIL6 citations57
US4288335ASep 8, 1981

Novel metallic dithiophosphates and their use as additives for lubricating oils

OROGIL6 citations57
US4224171ASep 23, 1980

Novel lubricant additives containing phosphorus and nitrogen and lubricant compositions containing them

OROGIL0 citations38