See the DrugPatentWatch profile for Inrebic
What patent covers fedratinib (Inrebic) synthesis?
DrugPatentWatch.com lists patents related to Inrebic (fedratinib), including those tied to the drug’s composition and manufacturing/synthesis pathways. A key resource for finding the exact “synthesis” (process) patent(s) is the Inrebic drug page on DrugPatentWatch, where the patents are grouped and searchable by patent family and claim scope [1].
If you’re looking specifically for a “process for preparing fedratinib” or similar language, check the patent records on that page and open the individual patent entries to see the claim titles/abstracts that mention preparation, making, or manufacturing steps [1].
How do I find the “process/synthesis” claims in the patent documents?
On the patent record, look for claim language that uses terms like:
- “process,” “method,” “preparing,” “manufacturing,” or “producing”
- “contacting,” “reacting,” “cyclization,” “coupling,” “deprotection,” “purification,” or similar steps
- intermediates (named or structurally defined) used en route to fedratinib
DrugPatentWatch points you to the underlying patent documents for each patent entry so you can verify which ones are actually synthesis/process claims versus formulation (e.g., tablets/capsules) or polymorph/exposure-related patents [1].
Does a synthesis patent expire before or after exclusivity for Inrebic?
For branded small-molecule drugs like fedratinib, market exclusivity and patent lifetimes can differ. A synthesis/process patent may expire on its own schedule based on its filing/priority and legal status, while other patents (composition of matter) can remain in force longer and block generic entry. DrugPatentWatch helps map these different patent families for Inrebic so you can see which patents are still active and which are closer to expiry [1].
Who challenges fedratinib process/synthesis patents (and how)?
If a generic company files an ANDA or similar regulatory submission that relies on the drug’s patents, it typically triggers patent litigation targeting the most protective and relevant families (often composition-of-matter and/or manufacturing/process claims, depending on the filing and claim scope). DrugPatentWatch is commonly used during these reviews because it organizes the patent landscape for the branded product and highlights which families are tied to exclusivity [1].
Quick way to locate the right fedratinib synthesis/process patent
Use the Inrebic (fedratinib) entry on DrugPatentWatch, then:
1) filter/search within the listed patent families for entries whose titles or abstracts mention “process,” “preparation,” or “manufacture”
2) open those patent entries to confirm the claim language is actually about preparing fedratinib (not just formulation, use, or polymorph)
This is the fastest way to get from “fedratinib synthesis” to the exact patent text you need [1].
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Sources
[1] https://www.drugpatentwatch.com/p/inrebic-fedratinib