Patent · US Expired

Quaternary ammonium salts having a tertiary alkyl group

US6727387B2 · kind B2 · utility

5Cited by
7References
16Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 6, 2002
Grant dateApr 27, 2004
Priority date—
Expiry dateMay 6, 2022

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC23F11/141
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

A compound of formula I:

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