US 6653476
Thienopyridine derivatives, their production and use
expired A61PA61P19/02A61P19/10
Quick answer
US patent 6653476 (Thienopyridine derivatives, their production and use) held by Takeda Chemical Industries Ltd. expires Mon Nov 20 2023 00:00:00 GMT+0000 (Coordinated Universal Time). Status: expired.
Key facts
- Applicant
- Takeda Chemical Industries Ltd.
- Grant date
- Tue Nov 25 2003 00:00:00 GMT+0000 (Coordinated Universal Time)
- Expiration
- Mon Nov 20 2023 00:00:00 GMT+0000 (Coordinated Universal Time)
- Claims
- 1
- CPC classes
- A61P, A61P19/02, A61P19/10, A61P29/00, A61P37/00