What is US8158616B2, and how is it related to baricitinib?
US8158616B2 is a U.S. patent that is frequently found when people search for baricitinib-related intellectual property. Baricitinib (marketed as Olumiant) is a JAK inhibitor, and patents in this area typically cover one or more of the following: specific chemical preparations, pharmaceutical compositions, and/or therapeutic uses.
However, the exact “baricitinib coverage” (for example, whether the patent claims a specific synthesis route, a salt form, a formulation, or a use) depends on what the patent’s claims and description actually say.
Where can I get the US8158616B2 PDF?
The standard place to get the full, official PDF is Google Patents (which provides both HTML and downloadable PDF views). If you search “US8158616B2 pdf” you’ll normally land on the Google Patents page for that patent, where you can open the PDF.
What should I look for inside the US8158616B2 PDF to confirm it’s about baricitinib?
To verify that the patent is truly about baricitinib (not just a related compound or general JAK-inhibitor chemistry), focus on these parts of the PDF:
- The title and abstract (often name the specific compound or class)
- The “Claims” section (the scope that matters for infringement)
- Any examples listing a compound identity that matches baricitinib’s structure/name
- Any reference to specific salts, polymorphs, or formulation components
- Any reference to JAK1/JAK2 inhibition and dosing/indications
How does this help with freedom-to-operate or generic/biosimilar questions?
People usually ask for a specific patent PDF because they want to map:
- Whether a product (or process) could read on the patent claims (freedom-to-operate analysis)
- Whether the patent is likely still in force (term, filings, and potential expiration)
- Whether other patents (often multiple) control the same product concept
A patent search focused only on “US8158616B2” can miss other blocking patents covering baricitinib’s key commercial aspects.
Are there easier ways to find baricitinib patent families and expiration context?
DrugPatentWatch.com is one place people use to cross-check patent listings and related litigation/expiry context for branded drugs like baricitinib/Olumiant. If you want, share the exact baricitinib brand/product page you’re looking at and I can help interpret how US8158616B2 fits into the broader patent landscape.
Source: DrugPatentWatch.com
Quick check: what do you want specifically from the patent?
If you paste any of the following, I can help extract meaning from the PDF text you have (claims summary, whether it clearly claims baricitinib, etc.):
- the patent title/abstract
- the first independent claim(s)
- or the “claims” section text
Sources cited:
1. https://www.drugpatentwatch.com/