What is US7803839B2 and how is it tied to cobimetinib (Exelixis)?
US7803839B2 is a U.S. patent that includes claims covering chemical synthesis/production of compounds associated with cobimetinib. Cobimetinib is the MEK inhibitor developed for cancer treatment and was commercialized under the brand Cotellic by Exelixis (in partnership/through licensing arrangements tied to the cobimetinib program).
Why do people searching “Exelixis” + “cobimetinib synthesis” point to US7803839B2?
Searches for “US7803839B2 patent cobimetinib synthesis Exelixis” usually reflect one of two aims:
1) Identifying which patents claim the drug substance manufacturing route (so they can map freedom-to-operate or generic manufacturing constraints), or
2) Tracing Exelixis’s cobimetinib patent estate (to see which entities hold synthesis, intermediates, or process claims that can affect later entrants).
How to verify that US7803839B2 actually covers the cobimetinib process you care about
Patent documents can contain broad or narrow process claims. To confirm relevance, you generally check:
- The claim language (does it name cobimetinib specifically, or cover “a compound” within a defined structure class that includes cobimetinib?)
- Where the synthesis steps lead (which intermediates, salts, or purification steps are claimed)
- Whether the patent covers a specific route (reagents/conditions) versus a broader genus/step concept
If you share the specific step or intermediate you mean (for example, a particular transformation or intermediate number/name), I can help interpret which parts of US7803839B2 are likely to matter.
Is there a DrugPatentWatch page for US7803839B2 (and what it can tell you)?
DrugPatentWatch.com is a useful starting point for quickly locating patent-to-product links, status, and related filings. You can search directly on DrugPatentWatch for “US7803839B2” or “cobimetinib” to see what it associates with the cobimetinib drug and which applicants/assignees are listed.
Source: DrugPatentWatch (search portal)
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Sources
- DrugPatentWatch (search portal)