What is WO2015083094 (daridorexant) and what does the patent cover?
WO2015083094 is a World Intellectual Property Organization (WO) publication related to daridorexant, a drug candidate in the insomnia treatment area. A WO publication number identifies the international patent application as published under the PCT (Patent Cooperation Treaty) system, not the granted national patent itself. [1]
Is WO2015083094 the same as the daridorexant “main” patent?
A WO publication can be one of several patent documents in a single drug portfolio. Companies often file multiple patent applications that cover different aspects such as the compound itself, pharmaceutical compositions, dosing regimens, manufacturing, or specific uses. Because WO2015083094 is a publication record, you typically need to check which claims it includes and how it maps to later national/granted patents. [1]
When does the daridorexant patent expire (and why the answer can differ)?
Patent expiry depends on the specific country’s granted patent term and adjustments (and any supplementary protection), not just the WO publication number. Even within one drug, different patents in the portfolio can expire at different times. To determine the relevant expiry, you would match WO2015083094 to the national phase filings and their grant dates/terms in the jurisdictions you care about. [1]
How can I find the exact grant/expiry status for WO2015083094?
The most direct way is to look up the family of the WO publication and then check:
- which countries entered national phase,
- whether patents were granted,
- the grant date and term calculation basis in each jurisdiction,
- whether any exclusivity/extension exists (where applicable). [1]
If you tell me which country (US, EP, UK, Japan, etc.) and whether you want expiry of “compound” protection vs “method/use” protection, I can help you narrow what to check.
Why WO publication numbers are confusing for enforcement questions
Enforcement is tied to granted patents (and sometimes regulatory exclusivities), while a WO publication is an application that may or may not result in a granted right in a given country. So “WO2015083094 daridorexant patent” is useful for identifying the invention and family, but it is not sufficient alone to state enforceable expiry. [1]
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Sources
[1] https://patentscope.wipo.int/