Plaque disclosing compositions
US4992256A · kind A · utility
95Cited by
20References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 27, 1989 |
| Grant date | Feb 12, 1991 |
| Priority date | — |
| Expiry date | Sep 27, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/43
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Dental plaque-disclosing compositions comprising FD&C Red No. 40 which selectively stain plaque formed on tooth surfaces, making plaque easily observable to the naked eye at visible light wave-lengths.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.