Patent · US Expired

Decaffeination process

US4251559A · kind A · utility

10Cited by
0References
8Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 6, 1978
Grant dateFeb 17, 1981
Priority date—
Expiry dateNov 6, 1998

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB01D11/0203
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

Caffeine is extracted from solutions thereof with supercritical carbon dioxide having a density of at least 0.85 g/ml.

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