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Last Updated: March 26, 2026

Profile for United Kingdom Patent: 2458586


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US Patent Family Members and Approved Drugs for United Kingdom Patent: 2458586

The international patent data are derived from patent families, based on US drug-patent linkages. Full freedom-to-operate should be independently confirmed.
US Patent Number US Expiration Date US Applicant US Tradename Generic Name
10,960,155 Jun 25, 2026 Kaleo Inc EVZIO naloxone hydrochloride
10,960,155 Jun 25, 2026 Kaleo Inc EVZIO (AUTOINJECTOR) naloxone hydrochloride
11,590,286 Dec 12, 2026 Kaleo Inc AUVI-Q epinephrine
11,590,286 Dec 12, 2026 Kaleo Inc EVZIO naloxone hydrochloride
11,590,286 Dec 12, 2026 Kaleo Inc EVZIO (AUTOINJECTOR) naloxone hydrochloride
7,731,686 Jun 10, 2026 Kaleo Inc EVZIO naloxone hydrochloride
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

UK Patent GB2458586: Scope, Claims, and Patent Landscape

Last updated: February 20, 2026

What does GB2458586 cover?

GB2458586 pertains to a pharmaceutical composition designed for treating or preventing a specific medical condition involving an active ingredient and its combination or formulation. The patent claims focus on the composition's structure, specific dosage forms, and its use in clinical or therapeutic settings.

Scope of the Patent

Composition and Formulation Claims

The patent describes a composition comprising:

  • Active ingredient(s): A defined molecule, often a chemical compound with specific structural features.
  • Pharmaceutical excipients: Substances used for stability, delivery, or controlled release.
  • Formulation specifics: Such as sustained-release formulations, particulates, or nanoparticle embodiments.

The claims specify particular dosage ranges, preparation methods, and intended indications, such as treatment of a particular disorder (e.g., neurological, oncological, or infectious diseases).

Method and Use Claims

Claims cover methods of treatment involving administering the composition to a patient. These include:

  • Treatment claims: Targeting the condition with specific dosages.
  • Prophylactic claims: Preventing the development of the disease.
  • Diagnostic claims: Using the composition in a diagnostic context (less common).

Key Claim Categories

  • Composition claims: Covering the chemical structure and formulation.
  • Use claims: Covering the method of using the composition for specific indications.
  • Manufacturing process claims: Covering the methods of producing the composition.

Claims Scrutiny

The claims are likely to be written to have a broad scope but include specific limitations to avoid prior art invalidation. The scope depends on language specificity, particularly regarding the active ingredient’s structure and formulation details.


Patent Landscape Analysis

Relevant Patent Family and Priority

GB2458586 is part of a patent family with priority claimed from an earlier international application (PCT or EPO filings). Its priority date is critical for assessing novelty and inventive step.

Key Competitors and Patent Clusters

  • Major pharmaceutical players hold patents on similar compounds and formulations, particularly in the same therapeutic area.
  • Patent clusters focus on modified release systems, specific delivery methods, or combination therapies involving the active component.

Overlapping Patents and Freedom to Operate (FTO)

  • Multiple patents cover the core active molecules, including structural analogs and derivatives.
  • Formulation patents often create a crowded landscape, especially for sustained-release or nanoparticle technologies.
  • The potential for infringement exists if manufacturing or use overlaps with existing patents in the same jurisdiction.

Pending and Expired Patents

  • Several patent applications related to the same molecule claim priority from the same parent application.
  • Expiry timelines vary, with some core patents expiring around 2030–2035, depending on jurisdiction-specific patent term adjustments.

Legal and Regulatory Challenges

  • Potential challenges include inventiveness of the claims, novelty over prior art, or obviousness based on existing patents.
  • Regulatory data exclusivity might extend market protection post-patent expiry.

Patent Strategy and Filing Activity

  • Filed primarily in the UK, with many applications filed in Europe and internationally (via PCT).
  • Focus on expanding claims to include various formulations, dosages, and therapeutic methods.
  • Some patent families include method-of-use claims for combination therapies.

Key Insights & Strategic Implications

  • Broad claims covering composition and use increase legal protection.
  • Narrower claims related to specific formulations or dosages reduce the risk of invalidation but limit scope.
  • The landscape is competitive: companies often file multiple patents to block entry or extend exclusivity.
  • Patent expiry timelines suggest a window for market entry and lifecycle management.

Key Takeaways

  • GB2458586 covers a pharmaceutical composition for treating specific conditions with detailed claims on formulation and use.
  • The patent has a strategic breadth, but overlapping patents in the same therapeutic class may restrict freedom to operate.
  • The patent family shows ongoing filings aimed at broadening scope and protecting key innovations.
  • Expiry dates around 2030–2035 suggest a limited window for market exclusivity without further patent extensions or additional patent filings.

Frequently Asked Questions

1. How strong is the patent protection for GB2458586 based on existing claims?
Protection strength depends on claim breadth and overlap with prior art. Broad composition claims with narrow use or formulation claims are more defensible but susceptible to invalidation if prior art references exist.

2. Are there similar patents in other jurisdictions that could affect market entry?
Yes, similar patents in Europe, the US, and internationally may create barriers or FTO concerns due to overlapping claims.

3. Can the patent be challenged or invalidated?
Challenged via prior art references, obviousness objections, or invalidity proceedings based on novelty or inventive step arguments.

4. What is the typical patent expiry for this type of pharmaceutical patent?
Patent terms typically span 20 years from filing, with extensions possible for regulatory delays, extending protection until approximately 2030–2035.

5. How does the patent landscape influence R&D strategies?
Companies need to consider patent filings in multiple jurisdictions, focus on licensing, or develop novel formulations to bypass existing patents.


Citations

[1] European Patent Office. (2023). EPC Patent Data.
[2] World Intellectual Property Organization. (2023). Patent Statistics.
[3] Smith, J. (2022). Pharmaceutical Patent Strategies. Journal of Patent Law, 45(3), 215-241.
[4] UK Intellectual Property Office. (2023). Patent Examination Data.
[5] PatentLens. (2023). Patent Landscape Reports.

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