Use of certain anionic amino acid based surfactants to enhance antimicrobial effectiveness of topically administrable pharmaceutical compositions
US6146622A · kind A · utility
21Cited by
14References
18Claims
0Family size
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Key dates
| Filing date | Sep 21, 1999 |
| Grant date | Nov 14, 2000 |
| Priority date | — |
| Expiry date | Sep 21, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P37/08
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Anionic amino acid based surfactants are used to enhance antimicrobial effectiveness in topically administrable pharmaceutical compositions containing at least one active ingredient, a cationic preservative and an anionic polyelectrolyte, such as carboxyvinyl polymers, xanthan gum, polystyrene sulfonic acid polymers and cationic exchange resins.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.