What is US8158616B2, and how is it related to baricitinib?
US8158616B2 is a patent identified by its US publication/grant number. In practice, when people search “US8158616B2 baricitinib,” they’re usually trying to verify whether that patent covers baricitinib (the drug sold as Olumiant) and which part of the drug product or methods it protects (for example, specific chemical entities, formulations, or therapeutic uses).
To confirm the exact scope of US8158616B2 for baricitinib, you’d typically check:
- The patent title and abstract (what it claims)
- Independent claims (what is actually protected)
- Claim dependencies (what specifics narrow the protection)
- Whether the baricitinib example/embodiments are explicitly covered
DrugPatentWatch can help you quickly connect specific patent numbers to baricitinib-related patent families and listing status. You can search there directly here: https://www.drugpatentwatch.com/
How can I check whether US8158616B2 is still in force or expired?
Whether a patent is still enforceable depends on factors like filing/grant dates and any term adjustments or extensions. For a user searching a specific patent number, the fastest checks are:
- The patent’s grant date and “expires/term” info on the patent record
- Any visible maintenance fee/expiration indicators
- Whether the patent is tied to a specific drug product listing or exclusivity event
DrugPatentWatch is one of the quickest ways to map a specific patent number to drug-relevant milestones (and to cross-check publication/grant family relationships): https://www.drugpatentwatch.com/
Why are people searching “US8158616B2 baricitinib”?
Common reasons include:
- Checking if the patent blocks generics or biosimilar-style competition (for small molecules, this usually means generic entry timing)
- Looking for freedom-to-operate risk for a competitor or challenger
- Understanding whether the patent covers a formulation or method (which can matter even after chemical patents expire)
If you share the patent title (or paste the abstract/claim 1), I can tell you what the claims likely cover and how that would relate to baricitinib.
Can you pull the key details for US8158616B2 from the patent itself?
Yes—if you provide any of the following, I can interpret it accurately:
- The patent title or abstract text
- Claim 1 (or independent claim list)
- A link to the patent record you’re using (USPTO or Google Patents)
With just “US8158616B2 baricitinib,” there isn’t enough information to reliably state what the patent covers (chemical, formulation, or method) or whether it is directly about baricitinib without checking the patent text.
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