US 6376461
Sustained-release preparation
expired A61KA61K31/00A61K38/1816
Quick answer
US patent 6376461 (Sustained-release preparation) held by Takeda Chemical Industries Ltd. expires Mon Apr 18 2022 00:00:00 GMT+0000 (Coordinated Universal Time). Status: expired.
Key facts
- Applicant
- Takeda Chemical Industries Ltd.
- Grant date
- Tue Apr 23 2002 00:00:00 GMT+0000 (Coordinated Universal Time)
- Expiration
- Mon Apr 18 2022 00:00:00 GMT+0000 (Coordinated Universal Time)
- Claims
- 17
- CPC classes
- A61K, A61K31/00, A61K38/1816, A61K38/193, A61K38/212