Patent · US Active

Method for producing high-purity quaternary ammonium salt

US8029689B2 · kind B2 · utility

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7Claims
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Key dates

Filing dateSep 18, 2007
Grant dateOct 4, 2011
Priority date—
Expiry dateJul 24, 2028

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02E60/13
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

A process for preparing a high-purity quaternary ammonium salt comprising:

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