US 6013679
Water-insoluble derivatives of hyaluronic acid and their methods of preparation and use
expired A61KA61K47/36A61K47/61
Quick answer
US patent 6013679 (Water-insoluble derivatives of hyaluronic acid and their methods of preparation and use) held by Anika Research, Inc. expires Mon Jan 06 2020 00:00:00 GMT+0000 (Coordinated Universal Time). Status: expired.
Key facts
- Applicant
- Anika Research, Inc.
- Grant date
- Tue Jan 11 2000 00:00:00 GMT+0000 (Coordinated Universal Time)
- Expiration
- Mon Jan 06 2020 00:00:00 GMT+0000 (Coordinated Universal Time)
- Claims
- 19
- CPC classes
- A61K, A61K47/36, A61K47/61, A61K47/6903, A61K9/0014