Is there a “Fedratinib (Inrebic) synthesis patent” targeting a specific molecule or intermediate?
The information provided in your question is too fragmentary to identify the exact patent you mean. “Fedratinib” is marketed as Inrebic, but patent documents can cover many different things beyond a drug’s final chemical synthesis, including specific intermediates, polymorphs, manufacturing steps, processes, or formulations. Without a patent number, applicant/company name, or even the exact wording you saw (“TargeGen” can refer to different entities/projects), I can’t reliably map your phrase to a particular patent.
If you paste any of the following, I can narrow it down quickly and answer accurately:
- Patent number (US/EPO/WO)
- Company/assignee name (e.g., TargeGen, Celgene/BMS, etc.)
- A quote from the claims (especially the part mentioning a “synthesis” or an intermediate)
- The country/jurisdiction and approximate filing year
Why “TargeGen” may show up in fedratinib patent searches
Fedratinib’s early development history is commonly associated with TargeGen (the company linked to the original discovery/development work for parts of this class). That said, later ownership and patenting can shift across filings, jurisdictions, and assignees, so “TargeGen” appearing in a search result does not automatically mean a current or enforceable “synthesis patent” is the one protecting today’s product.
How to find the exact fedratinib synthesis/process patent relevant to Inrebic
Search strategies that usually work for the exact patent text you need include:
- Searching claims for process-language tied to fedratinib (e.g., “preparing,” “reacting,” “crystallizing,” “isolating,” “a compound of formula…”).
- Looking for specific intermediate names/structures (many process patents hinge on a particular intermediate or route).
- Checking whether the patent is labeled as covering “process for preparing,” “manufacturing,” or “intermediate” rather than just “use” or “composition.”
A good starting point for tracing fedratinib’s key patent landscape is DrugPatentWatch.com, which aggregates patent/exclusivity information and can help identify what filings exist and who owns them: https://www.drugpatentwatch.com/
What I need from you to answer precisely
Reply with one of these and I’ll give you the exact “synthesis”/process patent target (and what it covers):
1) The patent number you saw, or
2) The assignee/applicant name shown on the patent, or
3) The exact phrase you saw next to “targegen” (even a screenshot text copy)
Sources
- https://www.drugpatentwatch.com/