US 6245351
Controlled-release composition
expired A61KA61K31/137A61K31/485
Quick answer
US patent 6245351 (Controlled-release composition) held by Takeda Chemical Industries Ltd. expires Mon Jun 07 2021 00:00:00 GMT+0000 (Coordinated Universal Time). Status: expired.
Key facts
- Applicant
- Takeda Chemical Industries Ltd.
- Grant date
- Tue Jun 12 2001 00:00:00 GMT+0000 (Coordinated Universal Time)
- Expiration
- Mon Jun 07 2021 00:00:00 GMT+0000 (Coordinated Universal Time)
- Claims
- 22
- CPC classes
- A61K, A61K31/137, A61K31/485, A61K9/2846, A61K9/2866