US 6699500
Sustained-release preparation capable of releasing a physiologically active substance
expired A61KA61K38/09A61K9/1647
Quick answer
US patent 6699500 (Sustained-release preparation capable of releasing a physiologically active substance) held by Takeda Chemical Industries Ltd. expires Mon Feb 26 2024 00:00:00 GMT+0000 (Coordinated Universal Time). Status: expired.
Key facts
- Applicant
- Takeda Chemical Industries Ltd.
- Grant date
- Tue Mar 02 2004 00:00:00 GMT+0000 (Coordinated Universal Time)
- Expiration
- Mon Feb 26 2024 00:00:00 GMT+0000 (Coordinated Universal Time)
- Claims
- 16
- CPC classes
- A61K, A61K38/09, A61K9/1647, A61P, A61P15/18