When Does Keytruda Patent Expire?
Keytruda is protected by 15 US patents. The earliest patent expires in 2025, which could open the door for generic competition. Full patent protection extends until 2040. Patent Strength Score: 40/100 (D).
Key Data
| Metric | Value |
|---|---|
| Total Patents | 15 |
| Patent Holders | Merck Sharp & Dohme LLC |
| Earliest Expiration | 2025 |
| Latest Expiration | 2040 |
| Patent Strength Score | 40/100 (D) |
Data sourced from USPTO PatentsView. Last updated 2026-04-10.