Forward register
The patent cliff
16,074 unexpired Orange Book patents, grouped by expiry year. Delisted patents are excluded, so what remains is the protection that actually gates generic entry.
2026474 patents20271,752 patents20281,086 patents20291,366 patents20301,444 patents20311,264 patents20321,008 patents20331,191 patents20341,253 patents20351,059 patents2036991 patents2037904 patents2038631 patents2039844 patents2040467 patents2041340 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.