US 6982275
Process for producing optically active sulfoxide derivative
expired A61KA61K31/4439A61P
Quick answer
US patent 6982275 (Process for producing optically active sulfoxide derivative) held by Takeda Pharmaceutical Company Limited expires Mon Dec 29 2025 00:00:00 GMT+0000 (Coordinated Universal Time). Status: expired.
Key facts
- Applicant
- Takeda Pharmaceutical Company Limited
- Grant date
- Tue Jan 03 2006 00:00:00 GMT+0000 (Coordinated Universal Time)
- Expiration
- Mon Dec 29 2025 00:00:00 GMT+0000 (Coordinated Universal Time)
- Claims
- 13
- CPC classes
- A61K, A61K31/4439, A61P, A61P1/04