Patent · US Expired

Lubricating oil

US4158633A · kind A · utility

17Cited by
6References
9Claims
0Family size

Assignee

Inventor

Key dates

Filing dateMar 30, 1978
Grant dateJun 19, 1979
Priority date—
Expiry dateMar 30, 1998

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC10N2040/28
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

Engine crankcase lubricating oil containing a dihydrocarbyl hydrocarbylphosphonate (e.g. dimethyl octadecylphosphonate) exhibits reduced friction which results in an increase in gasoline mileage thus conserving energy.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.