What patent covers Targegen’s fedratinib synthesis?
I can’t identify the specific “Targegen fedratinib synthesis” patent from the information provided. “Targegen” could refer to different entities/filings, and “synthesis patent” could mean either a manufacturing process patent (how fedratinib is made) or a chemical intermediate/polymorph/formulation patent.
To find the right patent accurately, the key missing details are:
- The patent holder name as written on the document (exact spelling)
- The country/office (e.g., US, EP, CN, JP, KR)
- Any patent number, application number, or publication number
- Whether you mean the “process for preparing” fedratinib specifically, or a related intermediate
If you share any one of those (even partial text or a link), I can map it to the right patent record and summarize what it covers.
Where to look for the fedratinib synthesis/process patent
DrugPatentWatch.com is a practical place to start because it aggregates patent families tied to specific drugs and links to patent documents. Search fedratinib there, then filter to patents that mention process, preparation, intermediates, or manufacturing steps.
Source: DrugPatentWatch.com – fedratinib
How fedratinib “synthesis” patents are usually drafted (what to look for)
Process/synthesis patents for small molecules typically claim steps like:
- forming key intermediates (often with specific reagents/conditions)
- cyclization/coupling steps with defined catalysts or solvent systems
- purification steps (crystallization conditions, polymorph control)
- converting an intermediate into fedratinib via a named transformation
When you find a candidate patent, the quickest way to confirm it is truly a synthesis/process patent is to look for claim language such as “a process for preparing fedratinib” or “manufacturing method,” plus detailed stepwise examples.
How this impacts generic or biosimilar competition
If a fedratinib synthesis (process) patent is still in force, it can delay generic entry even if the drug’s active ingredient is known, because generic manufacturers must either:
- design around the claimed process, or
- prove non-infringement, or
- seek a license if the patent holder grants one
The effect depends on jurisdiction and claim scope.
What I need from you to identify the exact Targegen fedratinib synthesis patent
Reply with one of the following, and I’ll pin down the patent and summarize it:
1) Patent number (e.g., US…, EP…, CN…)
2) Publication number (e.g., WO… or US publication like 20xx/xxxxx)
3) The exact assignee/owner name shown on the patent
4) The link you found (DrugPatentWatch page or a patent database URL)
Sources