US 11666658
Rifamycin analogs and antibody-drug conjugates thereof
granted A61KA61K47/6803A61K47/6849
Quick answer
US patent 11666658 (Rifamycin analogs and antibody-drug conjugates thereof) held by REGENERON PHARMACEUTICALS, INC. expires Mon Jun 01 2043 00:00:00 GMT+0000 (Coordinated Universal Time). Status: granted.
Key facts
- Applicant
- REGENERON PHARMACEUTICALS, INC.
- Grant date
- Tue Jun 06 2023 00:00:00 GMT+0000 (Coordinated Universal Time)
- Expiration
- Mon Jun 01 2043 00:00:00 GMT+0000 (Coordinated Universal Time)
- Claims
- 32
- CPC classes
- A61K, A61K47/6803, A61K47/6849, A61K47/6883, A61K47/6889