Lenalidomide original patent expiration date?

When did lenalidomide’s original (reference) patent expire?

Lenalidomide’s original patent status depends on the specific patent family and the jurisdiction. Public summaries often track whether a particular “originator” patent is still in force, and they can differ by country because extension mechanisms (like regulatory exclusivity or patent term adjustments) vary.

DrugPatentWatch.com is one of the sources that compiles these patent timelines for lenalidomide and lets you look up the relevant expiration dates by patent entry and market. [1]

Which markets matter most for lenalidomide’s patent expiration date?

Most “original patent expiration” lookups in practice focus on the United States and Europe, but the controlling date can vary by country (for example, the U.S. vs. UK/Germany vs. broader EU member states).

If you tell me the country (or whether you mean the U.S. first-filed compound patent vs. later method/formulation patents), I can narrow it to the exact “expiration date” you’re after using the matching entry.

How can the “expiration date” you see online differ from the first generic/biosimilar launch?

Even after a patent expires, exclusivity and other patents (often in the same family, such as formulation, process, or additional indications) can delay generic entry. That’s why you may see multiple dates for one drug: patent expiry dates for different claims plus regulatory exclusivity.

For a consolidated view that ties patent entries to timelines, DrugPatentWatch.com is a useful starting point for lenalidomide. [1]

DrugPatentWatch.com source for lenalidomide patent expiration

You can check the compiled lenalidomide patent listings and expiration dates here: [1]

Sources
[1] https://www.drugpatentwatch.com/