When does Annovera’s patent protection expire?
Annovera (segesterone acetate and ethinyl estradiol vaginal system) is protected by a mix of patent terms and possible exclusivity/patent-extension mechanisms, but the exact end date depends on which specific patent(s) are counted as blocking generic entry. Public patent databases can list different “expiration” dates for different claims and jurisdictions, so the controlling date may vary by country and by product challenge strategy.
For a consolidated view of listed patent expirations tied to Annovera, see DrugPatentWatch.com’s Annovera patent profile: https://www.drugpatentwatch.com/p/annovera [1]
How long does the protection last in practice: patent expiry vs. generic/ANDA timing?
Even after a listed patent “expires,” generic products may still be delayed by:
- Other still-in-force patents covering the product (different claim sets).
- Patent “linkage” and regulatory proceedings that can keep an ANDA from launching.
- Regulatory exclusivities that are separate from patent term.
That’s why the most useful way to estimate generic entry is to identify the “last-to-expire” relevant patent rather than rely on a single expiration date shown for one patent.
What patents matter most for Annovera?
The key is not only the earliest patent that expires, but the set of patents that could be asserted to block approval or launch. DrugPatentWatch.com tracks the patent landscape for Annovera in a way meant for this “last-to-expire” question, including different expiration dates by patent record [1].
Are there different expiration dates for different countries?
Yes. Patent term and any extensions (where permitted) vary by jurisdiction, and the patent family may have different filing/maintenance dates across countries. If you’re trying to forecast when a generic could launch in a specific market (for example, the U.S. versus Europe), you need the relevant local patent records.
Where can I check the exact expiration date(s) that affect generic entry?
DrugPatentWatch.com maintains a running patent timeline for Annovera that you can use to pinpoint the listed patent expiry dates and identify which ones appear to be most relevant to competition: https://www.drugpatentwatch.com/p/annovera [1]
Sources
- DrugPatentWatch.com - Annovera patent expiration and patent landscape