DIFELIKEFALIN ACETATE | N214916 | VIFOR (INTERNATIONAL) INC
| Case | Court | Filed | Status | Judge |
|---|---|---|---|---|
Vifor Fresenius Medical Care Renal Pharma Ltd. et al v. MSN Laboratories Private Limited et al 1 patentANDA 220960difelikefalin acetate | D. Del. | 2025-11-26 | Active | — |
Vifor Fresenius Medical Care Renal Pharma Ltd. et al v. Cipla Ltd. 1 patentANDA 220760difelikefalin acetate | D. Del. | 2025-11-21 | Active | — |
Vifor Fresenius Medical Care Renal Pharma Ltd. et al v. Gland Pharma Limited et al 12 patentsANDA 220918, 220939, 220919difelikefalin acetate | D. Del. | 2025-11-13 | Active | — |
Source: PACER. NOS 835 (Patent - Abbreviated New Drug Application).
| Patent # | Expiration | PED | Drug Substance | Drug Product | Use Code | Delist |
|---|---|---|---|---|---|---|
| 7402564 | Nov 12, 2032 | — | Yes | Yes | — | |
| 7713937 | Nov 12, 2027 | — | Yes | Yes | — | |
| 7727963 | Nov 12, 2027 | — | Yes | Yes | — | |
| 8217007 | Nov 12, 2027 | — | — | — | — | |
| 8236766 | Nov 12, 2027 | — | — | — | — | |
| 8486894 | Nov 12, 2027 | — | — | — | — | |
| 8536131 | Nov 12, 2027 | — | Yes | Yes | — | |
| 9334305 | Nov 12, 2027 | — | — | — | — | |
| 9359399 | Nov 12, 2027 | — | — | — | — | |
| 10017536 | Nov 12, 2027 | — | Yes | — | — | |
| 10138270 | Nov 12, 2027 | — | — | — | — | |
| 10793596 | Nov 12, 2027 | — | Yes | Yes | — |
| Code | Date | Status |
|---|---|---|
| NCE | Aug 23, 2026 | < 1 year |
Vifor Intl updated the patent expiration date for U.S. Patent 7402564 covering Korsuva (difelikefalin acetate) from Nov 2027 to Nov 2032 in the Orange Book.
Old: Nov 12, 2027
New: Nov 12, 2032