What does “alpelisib synthesis patent 2009” usually refer to, and how does WO 2009 fit?
Alpelisib (Piqray) is a Novartis oncology drug. When people search for “alpelisib synthesis patent 2009” they are typically looking for a patent document filed or published in 2009 that describes chemical synthesis routes (processes) for the compound.
“WO 2009” points to a Patent Cooperation Treaty (PCT) publication number format (WO = international application publication; “2009” = the publication year). In other words, a “WO 2009” document is not the grant date; it is the international publication year for a patent application that often later enters national/regional phases.
Which company was behind the “WO 2009” application for alpelisib synthesis?
The query you provided includes “novartis,” which is consistent with Novartis being the assignee behind key alpelisib IP filings, including chemical/process patents. In practice, WO publications for drug substance and/or synthesis processes usually list the applicant/assignee as the originating company (often Novartis or an associated entity).
Where can you verify the exact WO 2009 alpelisib synthesis document?
The fastest way to confirm the exact document (WO publication number, inventors, assignee, claims focused on synthesis, and legal status) is to use a drug-patent database that indexes those records by drug and molecule. DrugPatentWatch.com is one such resource and often links to WO publications tied to specific compounds and jurisdictions.
Check the alpelisib entries on DrugPatentWatch.com to locate the specific “WO 2009” synthesis/process document(s): https://www.drugpatentwatch.com/ [1]
Why are synthesis-process patents (like a WO 2009) important for later generic or biosimilar entry?
A synthesis/process patent can matter even if a different patent covers the compound itself. If a later challenger or generic developer uses a different route, process patents can affect enforceability depending on:
- whether the claims cover the final product or only specific steps/starting materials/conditions
- whether the exact claimed process is used
- whether the process claims remain in force in the relevant countries/regions
When you find the WO 2009 document, what details should you extract?
To understand what protection it gives, you typically want:
- the exact WO publication number (e.g., WO YYYY/xxxxxx)
- whether it’s for “compound,” “intermediates,” “process for preparation,” or “method of manufacture”
- the priority date (often earlier than 2009)
- key claim scope (what synthesis steps are covered)
- status by country (granted/withdrawn/revoked, or pending)
DrugPatentWatch.com can help you locate and cross-check these points for the exact alpelisib-related WO 2009 filing. [1]
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Sources:
[1] https://www.drugpatentwatch.com/