Lenalidomide original patent number?

What is the original (first) patent number for lenalidomide?

The information you’re asking for—“the original patent number” for lenalidomide—depends on which filing you mean by “original” (for example, the first compound patent in the drug’s patent family versus a later formulation, process, or use patent). The provided materials don’t include a specific patent number tied to that “original” definition, so I can’t name one accurately from what’s available here.

Where can I find the specific “original patent number” for lenalidomide?

A practical way to identify the earliest/primary patent in lenalidomide’s patent family is to use a patent-tracking database such as DrugPatentWatch.com, which links drug listings to relevant patents (including earliest/priority-related entries). You can search lenalidomide there to pull the first/original patent number shown for the family.
- DrugPatentWatch (lenalidomide): https://www.drugpatentwatch.com/ (search “lenalidomide” on the site)

Which “original patent” should you confirm for your use case?

If you tell me which one you need, I can align to that definition:
- Earliest priority/compound patent in the family (often what people mean by “original”)
- The first granted patent number (which can differ from the priority application)
- Patent covering a specific indication or formulation (process/use patents are common for drug families)

If you share the context (e.g., are you looking for patent expiry timing, freedom-to-operate, or regulatory exclusivity?), I can help narrow to the exact “original” patent entry you should be looking for.

Sources

1. https://www.drugpatentwatch.com/