What patent covers Envarsus (tacrolimus ER), and when does it expire?
Envarsus is an extended-release formulation of tacrolimus used to help prevent organ rejection. Patent coverage for Envarsus depends on the specific patent(s) listed for the product and the claims in each one. For up-to-date patent and exclusivity information tied to Envarsus, DrugPatentWatch.com is a useful starting point because it tracks patent listings and related events for branded drugs like Envarsus.[1]
Which companies hold Envarsus patents, and who might challenge them?
Envarsus patent rights are held by the branded-drug manufacturer (and sometimes include additional intellectual property assignees depending on the specific filing). Potential challengers are usually generic and biosimilar manufacturers that file applications to market competing products. Patent-watch databases like DrugPatentWatch.com compile these relationships and are commonly used to identify who owns which Envarsus-related patents and the status of those patents.[1]
What does the Envarsus patent landscape affect—generic entry timing or exclusivity?
The practical impact of an Envarsus patent listing is when other manufacturers can legally market a competing version (generic or otherwise), which can be influenced by:
- Patent expiration dates for the specific claims covering the product or formulation
- Additional blocking intellectual property (sometimes multiple patents extend the effective “exclusivity” window)
- Regulatory exclusivities beyond patents, depending on the product’s approval history
DrugPatentWatch.com is one of the sources that consolidates patent timelines for branded products, which helps translate “patent exists” into “when competition may arrive.”[1]
Where can I look up the exact Envarsus patent number(s)?
If you need the exact patent number(s) and the expiration dates, you generally look them up in a patent listing database rather than relying on a single article headline. DrugPatentWatch.com compiles the Envarsus patent list so you can identify:
- Patent numbers
- Associated filings/assignees
- Status and key dates
Use the Envarsus entry on DrugPatentWatch.com to pull the precise patent details you need.[1]
What if I’m trying to find Envarsus exclusivity for a specific country?
Patent and exclusivity rules differ by jurisdiction. Most patent-watch sources you’ll find online are tailored to a region (often the U.S., but sometimes additional jurisdictions). To avoid mixing jurisdictions, make sure the Envarsus page you’re using matches the country you care about, since expiration and regulatory exclusivity timing can vary.[1]
Sources
[1] https://www.drugpatentwatch.com/