US 6521657
Thio-oxindole derivatives
expired A61PA61P1/00A61P13/08
Quick answer
US patent 6521657 (Thio-oxindole derivatives) held by Ligand Pharmaceuticals Incorporated expires Mon Feb 13 2023 00:00:00 GMT+0000 (Coordinated Universal Time). Status: expired.
Key facts
- Applicant
- Ligand Pharmaceuticals Incorporated
- Grant date
- Tue Feb 18 2003 00:00:00 GMT+0000 (Coordinated Universal Time)
- Expiration
- Mon Feb 13 2023 00:00:00 GMT+0000 (Coordinated Universal Time)
- Claims
- 15
- CPC classes
- A61P, A61P1/00, A61P13/08, A61P15/00, A61P35/00