See the DrugPatentWatch profile for remifentanil
When does the remifentanil patent expire?
The provided information does not include any remifentanil-specific patent, jurisdiction, or filing details, so a precise expiry date can’t be stated. Patent expiry depends on the country (or region) and on the specific patent family (for example, the originator’s basic compound patent versus later patents such as formulations, dosing methods, or manufacturing processes).
What patents matter for generic remifentanil entry?
For remifentanil, market entry timing is usually affected by more than one type of right, such as:
- the original active-substance (compound) patent term
- later patents covering specific formulations or improvements
- regulatory exclusivities (if applicable in the jurisdiction)
- any patent litigation or stays tied to an application for generic/abridged approval
Because the question doesn’t name a manufacturer, country, or patent number, it’s not possible to determine which of these are relevant or when they expire.
Does the answer differ by country (US vs EU vs UK)?
Yes. Patent terms and calculating rules differ across jurisdictions, and so do the applicable “last-to-expire” dates for a given product. Even within the EU/UK, different patent rights and regulatory exclusivities can affect when a generic can launch.
What details are needed to find the exact expiry date?
To identify the correct remifentanil patent expiry date, you’d need at least one of the following:
- the country/region (e.g., US, EU, UK)
- the marketed product name/strength (and whether it’s a specific brand)
- the patent number(s) or application/publication numbers
- the originator company (or current holder)
- the specific manufacturer of the generic you’re comparing
If you share the country (or jurisdiction) and the brand/product name you mean, I can narrow down which patents would control expiry and provide the relevant dates from the applicable patent records.
Sources
No sources were provided in the prompt, so none are cited.