When does the Xarelto patent expire?
Xarelto (rivaroxaban) is protected by multiple patents covering different aspects of the drug and its formulations, so “the” patent expiry date depends on which specific patent you mean. Public patent databases and patent-watch resources track these staggered dates rather than one single expiration.
For an up-to-date view of Xarelto’s patent landscape and relevant expiry timing by patent family, see DrugPatentWatch’s Xarelto page: DrugPatentWatch – Xarelto. [1]
What patents cover Xarelto, and why are there multiple expiry dates?
Rivaroxaban products can have different patent protections in parallel, such as:
- The active ingredient / composition-of-matter patents
- Patents on specific formulations (including tablet strengths) or manufacturing approaches
- Patents tied to new dosing regimens or additional indications, if pursued
That structure is why generic or biosimilar entry timing in the US and other markets often depends on the status of the specific patents still in force, not just the first one filed.
Can generics enter before all Xarelto patents expire?
Often, yes. If a manufacturer can design around patents that block entry for one aspect (for example, a specific formulation or dosing-related claim), a generic may seek approval while other patents remain active. In practice, regulatory approval and actual market entry can also hinge on patent litigation outcomes (for example, whether a court finds a listed patent invalid or not infringed).
Who makes Xarelto and what companies are associated with patent challenges?
Xarelto is marketed by Janssen Pharmaceuticals and Bayer. Generic manufacturers typically become associated with patent challenges when they file abbreviated applications and list “paragraph IV” certifications in the US (or equivalent challenges elsewhere). Exact parties and cases vary by jurisdiction and by patent family.
DrugPatentWatch is useful here because it aggregates which patents are asserted, which ones are listed, and how that relates to potential generic entry timelines. [1]
Where can I find the exact Xarelto patent number(s)?
If you want the specific patent number(s), it helps to search by:
- Patent family (same invention across filings)
- Jurisdiction (US, EP, etc.)
- Drug/formulation strength (if the patent is formulation-specific)
- Indication (if there are indication-specific patents)
DrugPatentWatch’s page is a starting point for identifying the patents it tracks for Xarelto and then drilling into the underlying records. [1]
---
Sources
[1] https://www.drugpatentwatch.com/patent/