Hyaluronic acid gel composition, process for producing the same, and medical material containing the same
US6638538B1 · kind B1 · utility
34Cited by
3References
31Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 27, 2001 |
| Grant date | Oct 28, 2003 |
| Priority date | — |
| Expiry date | Sep 27, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L29/04
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A hyaluronic acid gel composition comprising hyaluronic acid and a polymer, which is substantially unmodified with a chemical cross-linking agent or a chemical modifying agent and which has a percentage dissolution of hyaluronic acid of 50% or lower in 12 hours in a neutral aqueous solution of 37° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.