Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Quaternary ammonium diester salt composition and hydrocarbon oil containing same

Quaternary ammonium diester salt composition and hydrocarbon oil containing same

US Patent 4251380 · Granted Feb 17, 1981

Estimated economic value: $8,209,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Gas projection device sometimes with a burst disk, producing loud sonic report a2008
Lubricating oil composition containing the reaction product of an alkenylsuccini1995
Process for oxycarbonylation of lower alkanols1992
Dispersant anti-oxidant VI improver and lubricating oil composition containing s1990
Novel ligand catalyst systems formed by reaction of carbonyl compounds with orga1990
Novel ligand catalyst systems formed by reaction of carbonyl compounds with orga1987
Spirolactone condensation product dispersants and lubricants containing same1985
Molybdenum derivatives and lubricants containing same1984
Semi-synthetic lubricating oil composition1983
Detergent and corrosion inhibitor and motor fuel composition containing same1983
Quaternary ammonium salt composition and lubricating oil containing same1983
Novel dispersant-VI improvers and lubricating oil containing same1983