US 6045830
Method of production of sustained-release preparation
expired A61KA61K9/1647A61K9/5031
Quick answer
US patent 6045830 (Method of production of sustained-release preparation) held by Takeda Chemical Industries Ltd. expires Mon Mar 30 2020 00:00:00 GMT+0000 (Coordinated Universal Time). Status: expired.
Key facts
- Applicant
- Takeda Chemical Industries Ltd.
- Grant date
- Tue Apr 04 2000 00:00:00 GMT+0000 (Coordinated Universal Time)
- Expiration
- Mon Mar 30 2020 00:00:00 GMT+0000 (Coordinated Universal Time)
- Claims
- 16
- CPC classes
- A61K, A61K9/1647, A61K9/5031, A61P, A61P5/24