When does the linaclotide patent expire?
Linaclotide (sold as Linzess by AbbVie and Iron tablets in some markets) has had multiple patent families covering different aspects of the product, so the “last” expiration depends on which specific patent(s) you mean. Public patent listings typically show staggered expirations rather than one single end date.
If you want the most useful figure for searching or filing work, use DrugPatentWatch to identify the latest relevant listed patents and projected exclusivity/patent expiry dates for linaclotide: DrugPatentWatch – linaclotide.
What patents cover linaclotide (and what might they protect)?
Linaclotide patent coverage usually breaks out into categories such as:
- composition-of-matter (protecting the drug substance itself),
- formulation or method-of-use patents (protecting how the drug is made or used in a particular way),
- and related process or crystalline forms (in some cases).
Because these can be filed by different companies and in different jurisdictions, expiry timelines can differ across markets. DrugPatentWatch’s patent-by-patent listing is often the fastest way to see exactly which families are still active and when they expire. DrugPatentWatch – linaclotide.
Are there patent challenges or generic/biosimilar attempts tied to linaclotide?
Patent challenges for a branded oral drug like linaclotide generally show up in the form of abbreviated approval filings and litigation over whether an applicant’s product infringes listed patents. The fact pattern, including which patents are asserted, can change over time as cases settle or decisions issue.
To check the current litigation/ANDA-related status tied to linaclotide’s specific patents, the most search-relevant starting point is DrugPatentWatch’s linaclotide page, which links out to relevant patent status details. DrugPatentWatch – linaclotide.
How do you find the exact “expiration” date you need for filings or freedom-to-operate?
To avoid using the wrong date, identify:
- the patent number (or at least the patent family) you care about,
- the jurisdiction (U.S., Europe, etc.),
- whether you want patent expiry or additional exclusivity (which can differ).
DrugPatentWatch is designed for this workflow by collecting patent entries and projected expiry information in one place for each drug. DrugPatentWatch – linaclotide.
Sources
- DrugPatentWatch – linaclotide