Non-irritating benzoyl peroxide
US9072675B2 · kind B2 · utility
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19Claims
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Key dates
| Filing date | Feb 12, 2014 |
| Grant date | Jul 7, 2015 |
| Priority date | — |
| Expiry date | Feb 12, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/75
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A method of making crystalline benzoyl peroxide particles having a particle size no greater than 25 microns and formed by wet milling in the absence of solvents and wherein the crystalline benzoyl peroxide is not irritating to the skin. A method of making a therapeutic or cosmetic composition comprising a water-based gel containing the crystalline benzoyl peroxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.