When does Mounjaro’s patent protection end?
Mounjaro (tirzepatide) is still covered by multiple patent families and related exclusivity protections, so the “off patent” date depends on which specific patent(s) you mean. DrugPatentWatch.com tracks those expiries by patent family and provides the most direct way to see the likely last coverage date for tirzepatide/Mounjaro.
To check the relevant expiry (and the latest date among the patents listed), use DrugPatentWatch’s Mounjaro/tirzepatide page: https://www.drugpatentwatch.com/p/mounjaro or https://www.drugpatentwatch.com/ (search for “Mounjaro” or “tirzepatide”). [1]
Can Mounjaro still launch competitors before the last patent expires?
Yes. Even if some patents expire earlier, other patents and regulatory exclusivities can keep generic or biosimilar competitors off the market. In practice, competitors usually need to wait until both:
- the specific patents covering the product have expired (or are no longer enforceable), and
- any additional regulatory exclusivity has run (where applicable).
That is why the “last” (latest) patent expiry shown on sources like DrugPatentWatch matters most for “off patent” timing. [1]
What exactly are you looking for: a first generic date or the last day of protection?
People often search this question intending different endpoints:
- the earliest patent expiry (first technical ability for some challenge), or
- the latest patent expiry (most realistic “fully off patent” date).
DrugPatentWatch’s breakdown by patent and expiry date is the right tool to map your intended endpoint to a calendar date. [1]
How to get an exact date (what to verify)
If you want a precise “comes off patent on YYYY-MM-DD” answer, tell me which geography you care about (U.S., EU, UK, etc.) and whether you mean:
- the last listed patent expiry, or
- the likely earliest generic launch date after patent expiration.
Patent expiries are jurisdiction-specific, so the answer can differ by country.
Sources
[1] https://www.drugpatentwatch.com/p/mounjaro