Forward register
The patent cliff
16,071 unexpired Orange Book patents, grouped by expiry year. Delisted patents are excluded, so what remains is the protection that actually gates generic entry.
2026561 patents20271,750 patents20281,085 patents20291,359 patents20301,445 patents20311,264 patents20321,008 patents20331,190 patents20341,247 patents20351,055 patents2036988 patents2037902 patents2038629 patents2039843 patents2040453 patents2041292 patents
Provenance
Source: FDA Orange Book (Approved Drug Products with Therapeutic Equivalence Evaluations), patent and exclusivity files, refreshed monthly. Patent expiry is not the same as loss of exclusivity: paediatric extensions, regulatory exclusivity, 30-month stays and settlement agreements routinely move the real date. Treat this as a map of what to check, not as legal advice.