Skin coloring compositions containing indoles and quaternary ammonium salts
US5049381A · kind A · utility
6Cited by
4References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 22, 1989 |
| Grant date | Sep 17, 1991 |
| Priority date | — |
| Expiry date | Nov 22, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K8/492
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Compositions containing certain indoles and quaternary ammonium salts are useful for imparting a tan to skin without prolonged exposure to the sun.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.