Hyaluronic acid gel and manufacturing method thereof
US9855206B2 · kind B2 · utility
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21Claims
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Key dates
| Filing date | Aug 2, 2013 |
| Grant date | Jan 2, 2018 |
| Priority date | — |
| Expiry date | Aug 2, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2305/08
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Provided is hyaluronic acid gel suitable for cosmetic and medical field.The hyaluronic acid gel contains hyaluronic acid, polycarboxylic acid or oxycarbonic acid, and polyhydric alcohol. The hyaluronic acid gel is produced by drying moisture of an aqueous solution in which the hyaluronic acid, the polycarboxylic acid, and the polyhydric alcohol are uniformly dissolved to be an intended form.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.