Hyaluronic acid-collagen matrices for dermal filling and volumizing applications
US11833269B2 · kind B2 · utility
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118References
11Claims
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Key dates
| Filing date | Oct 8, 2019 |
| Grant date | Dec 5, 2023 |
| Priority date | — |
| Expiry date | Oct 8, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2430/34
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Hydrogels comprising a macromolecular matrix and water may be used for aesthetic fillers, for example, dermal fillers. The macromolecular matrix may include a crosslinked combination of hyaluronic acid and collagen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.