When does the avibactam patent expire?
The exact expiration date for an “avibactam” patent depends on which specific patent (and which country/region) covers it, since multiple patents can protect different claims (for example, the molecule itself versus particular combinations or uses). The provided information here does not include any patent numbers, jurisdictions, or expiry timelines, so no specific expiration date can be stated accurately.
Which avibactam patents matter (molecule vs. combination vs. use)?
Patent coverage for avibactam can vary by what is claimed:
- patents covering the active compound itself (often the longest-running chemistry protection),
- patents covering formulations or specific dosing,
- patents covering combinations with companion drugs (for example, use in certain antibiotic regimens),
- patents covering specific indications or patient populations.
Because each category can expire on a different schedule (and may also be affected by patent term adjustments), the relevant expiry is usually the one tied to the product’s exact protected claim in the target market.
Does the expiration differ by country (US vs. EU vs. UK vs. others)?
Yes. Patent terms are jurisdiction-specific. A patent’s expiration in one country does not automatically determine the date in another. Also, some regions use supplementary protection certificates (SPCs) or have different rules for patent term extensions that can shift effective market exclusivity timing.
To determine the real “when can generics/biosimilars arrive?” window, you need:
- the jurisdiction (e.g., US, EU, UK),
- the relevant patent family member,
- whether there are SPCs or other extensions,
- whether any litigation or regulatory exclusivity stays are in effect.
Could generics enter before the last patent expires?
Potentially, depending on:
- whether a later-expiring patent actually blocks the particular generic product (i.e., “design-around” or non-infringing approaches),
- regulatory pathways (and whether the application can rely on non-infringing claims),
- whether enforcement actions or court injunctions prevent launch,
- whether the product is covered by additional exclusivity protections beyond patents.
But without the specific avibactam patent(s) and jurisdiction(s), this can’t be pinned to dates.
How to look up the exact expiry date you need
To get the correct avibactam patent expiration, you typically need to identify:
1) the product name and sponsor (the company that owns the relevant patent family),
2) the jurisdiction you care about,
3) the exact patent number(s) and assignee,
4) any related secondary protections (e.g., combination patents, formulation patents, SPCs),
5) whether there are active disputes that could affect launch timing.
If you share the country/jurisdiction and the specific product (or the patent number you’re looking at), I can narrow down which expiration date applies and explain how exclusivity is determined.
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Sources: None provided in the prompt.