Patent · US Expired

Coloring materials

US5643585A · kind A · utility

29Cited by
0References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 18, 1995
Grant dateJul 1, 1997
Priority date
Expiry dateJul 18, 2015

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC09B61/00
  • WIPO fieldPharmaceuticals
  • WIPO sectorChemistry

Abstract

A non-soluble particulate coloring material comprises dry ground red microalgae-derived material as the base coloring matter.

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