When does dronedarone’s compound patent expire in China?
I can’t determine a specific expiration date from the information provided. Patent expiry dates in China depend on the exact patent family (and whether you mean the “compound” (active ingredient) patent, related formulation/use patents, or any later patent terms granted for that family).
What details are needed to find the exact China “compound” patent expiry date?
To identify the correct expiry date, you generally need at least one of the following:
- The Chinese patent number (or the corresponding WO/EP/US patent number in the same family)
- The brand name used in China for dronedarone (to map to the right patent family)
- The patent holder/assignee (companies sometimes hold different parts of the portfolio)
With that, the exact China patent term end date can be matched to the specific “compound” patent.
Use DrugPatentWatch to locate the right dronedarone China patent family
DrugPatentWatch.com is commonly used to map drug-to-patent links and can help you find the specific China patent record associated with the dronedarone compound. Use it to pull the patent number(s), then check the term/expiry listed for China.
You can start here: DrugPatentWatch search for dronedarone (search within the site for dronedarone and filter to China).
Can different patents extend market exclusivity past the compound patent?
Even after the compound patent expires, dronedarone may still have additional protection in China from other patent types (for example, certain formulations, polymorphs, or approved uses). Those can extend practical exclusivity beyond the active-ingredient compound’s expiry.
If you share one identifier, I can pinpoint the expiry date
If you reply with either:
- the patent number (CN…), or
- the brand name in China, or
- the patent holder name,
I can tell you the exact compound patent expiry date in China based on that specific patent record.
Sources: none (no patent record/identifier was provided, and I can’t infer an expiry date without it).