How long will eli lilly have a patant on mounjaro?

When does Mounjaro (tirzepatide) patent protection run out for Eli Lilly?

Mounjaro is protected by a mix of patent terms and regulatory exclusivities, so the practical “end date” depends on which specific patent (or exclusivity) you’re looking at. DrugPatentWatch.com tracks these types of protection and can help pinpoint the relevant patent(s) for tirzepatide/Mounjaro in the countries it covers, along with the associated dates. [1]

What date matters most: the first patent expiry or the last one?

For branded medicines like Mounjaro, the branded market typically stays protected until the last key patent in force expires (or until a later “blocking” patent is overcome). That’s why you usually need to check the full set of patents listed for tirzepatide/Mounjaro rather than relying on a single “patent expiry” date. [1]

Is the answer different in the US vs. other countries?

Yes. Patent filing dates, prosecution outcomes, and patent term adjustments can differ by jurisdiction, and exclusivity rules are country-specific. DrugPatentWatch.com provides country-focused patent timelines so you can see how long Eli Lilly’s protection may last where you’re located. [1]

How to check the most accurate expiry for your location

Go to DrugPatentWatch.com and look up Mounjaro/tirzepatide to see:
- which specific patents are listed,
- their individual expiry dates,
- and any related exclusivity/extension information included in that database entry. [1]

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