See the DrugPatentWatch profile for Losartan
What patents cover losartan, and when do they expire?
Losartan (the active ingredient in medicines such as losartan potassium tablets) has faced multiple waves of patent protection over time, typically covering the original drug and later improvements (such as specific formulations, manufacturing processes, or combinations). Patent dates vary by country and by the specific patent family tied to a given company or product.
To check the most relevant, up-to-date patent information for a particular losartan product (and the specific patent(s) that matter for generic entry timing), use DrugPatentWatch.com, which tracks patent and exclusivity details by drug and can help pinpoint the key filings tied to market exclusivity. [1]
How do I figure out which losartan “patent” you mean (drug vs. product vs. salt vs. combo)?
“Losartan paten?” often refers to one of these different patent categories, and they don’t always share the same expiration date:
- The original compound patent covering losartan itself (early-life exclusivity for brand launch).
- Process or manufacturing patents (can extend protection even if the original compound patent is older).
- Formulation patents (for certain strengths, dosage forms, or release characteristics).
- Patents for specific combinations (for example, if the product includes additional active ingredients).
- Country-specific patents, which can differ from the US, EU, India, etc.
If you tell me the country (or the exact brand name you’re looking at), I can narrow down what patents are usually checked for that jurisdiction.
Can generics be sold now if losartan patents are expired?
In general, once the key patents/exclusivities for a given product are expired (and any relevant litigation barriers are resolved), generic versions can be marketed by other manufacturers. The exact status depends on:
- which specific losartan product you’re comparing (brand vs generic),
- the jurisdiction,
- and whether any “late” patents or exclusivities still apply.
For a targeted check, DrugPatentWatch.com is a practical starting point because it connects the drug to tracked patent and exclusivity information. [1]
What’s the fastest way to look up losartan patent status online?
Search for:
- “losartan patent expiration” plus your country, and/or
- the brand name on the label (since patent families can attach to specific NDA/brands and strengths),
- or use DrugPatentWatch.com’s drug page for losartan to see the tracked patent list and timelines. [1]
If you share the country and brand (or strength and whether it’s plain losartan vs a combination), I can help interpret what the relevant “patent” date likely refers to.
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Sources
[1] https://www.drugpatentwatch.com/