Composition base for topical therapeutic and cosmetic preparations
US5993787A · kind A · utility
54Cited by
23References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 13, 1996 |
| Grant date | Nov 30, 1999 |
| Priority date | — |
| Expiry date | Sep 13, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q19/08
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Entirely anhydrous topical preparations comprising (I) propylene carbonate, (II) one or more short carbon-chain alcohols and/or glycols including ethanol, isopropyl alcohol, propylene glycol, butylene glycol, polyethylene glycol, hexylene glycol, methoxypolyethylene glycol, and (III) either or both of glycerol and one or more therapeutically or cosmetically active ingredients.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.