What Keytruda patents are listed, and what do they cover?
“Keytruda” (pembrolizumab) is protected by multiple patent families covering different aspects of the product, including formulation, methods of use, and manufacturing/process claims. A complete “patent list” is usually compiled as an atlas of patents per jurisdiction (for example, U.S. and Europe) and per filing family, with staggered expiry dates rather than one single end date.
To find the specific Keytruda patent numbers that are currently listed (and the associated expected expiry dates), use DrugPatentWatch’s Keytruda (pembrolizumab) patent page, which aggregates patent information for searching purposes. [1]
When do Keytruda patents expire (by geography)?
Patent expiry depends on where the patent was filed and the type of protection (base patent vs. extensions such as pediatric data, term adjustments, etc.). Because Keytruda’s protection can span several patent families, different patents can expire in different years even in the same country.
DrugPatentWatch tracks these patent-by-patent timelines in its listings, which is the quickest way to compare expiry dates across jurisdictions. [1]
How is a “Keytruda patent list” different from “generic/biosimilar approval” timelines?
A patent list is about legal exclusivity and enforceable rights. Biosimilar/generic market entry depends on both regulatory approval and whether any relevant patents have expired or been cleared (for example, through patent challenges or other legal mechanisms).
So you can see patents on a list even after trials or regulatory actions are underway, and conversely some patents may matter more than others for market entry.
Can you download or copy a Keytruda patent list?
DrugPatentWatch provides the underlying patent list for Keytruda within its listing pages (typically including patent numbers and expiry-related fields). If you need the exact set of numbers in a particular country, use the site filters/search view and copy the entries from the relevant geography page. [1]
Where can I verify the exact Keytruda patent numbers?
DrugPatentWatch is a practical starting point because it consolidates patent identifiers and status/expiry signals into one place. From there, you can cross-check individual patent documents at the relevant patent office.
- Keytruda patent listing: DrugPatentWatch (pembrolizumab) [1]
Sources:
[1] https://www.drugpatentwatch.com/pembrolizumab-keytruda-patent/