RITUXIMAB-PVVR | B761103 | PFIZER INC
Earliest legal licensure (12-year BPCIA floor)
The 12-year reference-product exclusivity is the non-carveable floor — the earliest FDA could license a biosimilar for any indication. Unverified estimate — derived from the earliest available approval record (Jul. 23, 2019), not an FDA-stated exclusivity date. Shown with lower confidence than a Purple Book value.
Full-label vs. best-skinny biosimilar entry
| Scenario | Date | Status | Controlling |
|---|---|---|---|
| Best-skinny entry (floor) | Jul. 23, 2031 | 5y remaining | 12-year RPE floor (non-carveable) |
| Full-label entry | Jul. 23, 2031 | 5y remaining | 12-year RPE floor |
Best-skinny equals full-label — no carveable orphan block runs past the licensure floor.
Marketing-entry ceiling (litigation risk)
Patents do not gate FDA licensure of a biosimilar — FDA licenses biosimilars (full or carved label) without adjudicating any patent. These are a practical marketing-entry ceiling resolved in the § 262(l) patent dance and ordinary litigation. A formulation/compound patent caps practical skinny entry via litigation (Regeneron v. Mylan); a method-of-use patent is carveable and gates nothing.
Latest formulation/compound patent 11931414(composition)· AI-discovered, not Purple-Book-listed · relevance 70/100. This caps practical skinny-label entry; it does not move the licensure floor above.
25 formulation/compound (cap skinny entry) · 1 method-of-use (carveable — gate nothing) · 24 device/diagnostic/manufacturing
| Patent | Class | Expiration | Source |
|---|---|---|---|
| 12174184 | Other | Dec. 19, 2044Active | Discovered |
| 11931414 | Formulation/compound | Mar. 14, 2044Active | Discovered |
| 11865177 | Formulation/compound | Jan. 4, 2044Active | Discovered |
| 11802165 | Other | Oct. 26, 2043Active | Discovered |
| 11661579 | Other | May. 25, 2043Active | Discovered |
| 11649262 | Other | May. 11, 2043Active | Discovered |
| 11634836 | Other | Apr. 20, 2043Active | Discovered |
| 11578428 | Formulation/compound | Feb. 9, 2043Active | Discovered |
| 11440971 | Formulation/compound | Sep. 8, 2042Active | Discovered |
| 11299539 | Other | Apr. 7, 2042Active | Discovered |
| 11028149 | Other | Jun. 3, 2041Active | Discovered |
| 10975168 | Other | Apr. 8, 2041Active | Discovered |
| 10933112 | Formulation/compound | Feb. 25, 2041Active | Discovered |
| 10933141 | Formulation/compound | Feb. 25, 2041Active | Discovered |
| 10889802 | Other | Jan. 7, 2041Active | Discovered |
Showing 15 of 50 patents (latest expirations).
Approved Biosimilars
Disclaimer: Identifying an available carve-out is not a prediction that FDA will approve the particular carved label, nor that marketing it is free of infringement risk. For biologics, availability turns on exclusivities, not patents: FDA licenses a biosimilar (full or carved label) without adjudicating any patent, and patent disputes run through the § 262(l) patent dance and ordinary litigation, outside this availability view.
Top 50 of 234 AI-discovered patents by relevance.
No patent or exclusivity listings for this strength.