US 6036976
Sustained release microspheres and preparation thereof
expired A61KA61K9/1647A61K9/1694
Quick answer
US patent 6036976 (Sustained release microspheres and preparation thereof) held by Takeda Chemical Industries Ltd. expires Mon Mar 09 2020 00:00:00 GMT+0000 (Coordinated Universal Time). Status: expired.
Key facts
- Applicant
- Takeda Chemical Industries Ltd.
- Grant date
- Tue Mar 14 2000 00:00:00 GMT+0000 (Coordinated Universal Time)
- Expiration
- Mon Mar 09 2020 00:00:00 GMT+0000 (Coordinated Universal Time)
- Claims
- 15
- CPC classes
- A61K, A61K9/1647, A61K9/1694