Antimicrobial compositions comprising copper-hydroxypyrone complexes
US11000502B2 · kind B2 · utility
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17Claims
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Key dates
| Filing date | Feb 6, 2018 |
| Grant date | May 11, 2021 |
| Priority date | — |
| Expiry date | Feb 6, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A50/30
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Copper based antibacterial agents are described based on amphiphilic copper complexes formed between copper and hydroxypyrones, such as maltol. In further aspects, the present invention relates to PEG based-ointments showing that they are particularly effective for topical delivery of amphiphilic complexes of copper. In particular, PEG ointments were shown to limit bacterial growth, even when in the absence of copper agent. However, this bacteriostatic effect is shown herein to become a true biocidal effect when copper hydroxypyrones are added to the PEG.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.