Coloring materials
US5643585A · kind A · utility
29Cited by
0References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 18, 1995 |
| Grant date | Jul 1, 1997 |
| Priority date | — |
| Expiry date | Jul 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.