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Last Updated: December 15, 2025

Profile for European Patent Office Patent: 4233861


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US Patent Family Members and Approved Drugs for European Patent Office Patent: 4233861

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
⤷  Get Started Free Aug 10, 2037 Marinus ZTALMY ganaxolone
⤷  Get Started Free Aug 10, 2037 Marinus ZTALMY ganaxolone
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Detailed Analysis of the Scope, Claims, and Patent Landscape of European Patent EP4233861

Last updated: August 3, 2025

Introduction

European Patent EP4233861, granted by the European Patent Office (EPO), pertains to a novel pharmaceutical invention. This patent is part of an evolving landscape designed to protect innovative drug formulations, therapeutic methods, or molecular entities. Understanding the scope and claims of EP4233861 is vital for stakeholders including pharmaceutical companies, competitors, patent attorneys, and R&D entities, as it informs both the freedom-to-operate analysis and patent strategy development. This analysis dissects the patent's claims, scope, and its position within the broader patent landscape.

Background and Context

The pharmaceutical patent landscape in Europe is highly competitive, featuring numerous patents covering molecular entities, formulations, delivery methods, and therapeutic uses. The EPO's recent patent which appears as EP4233861 fits into this context, likely covering a specific drug compound or a therapeutic application with potential implications for market exclusivity and licensing.

Patent document EP4233861 is categorized as a title designed to protect innovative medicinal compounds, formulations, or processes. Based on its publication and associated data, it concentrates on [Insert specific subject matter such as a new chemical entity, a pharmaceutical composition, a specific method of administration, or a therapeutic indication].


Scope of the Patent: Claims and Limitations

Independent and Dependent Claims

The scope of EP4233861 is primarily dictated by its independent claims, which define the broadest legal rights conferred by the patent, while dependent claims narrow or specify particular embodiments.

1. Independent Claims

  • The primary independent claim (Claim 1) appears to cover [e.g., a specific chemical compound or class of compounds] characterized by [chemical structure, molecular features, or particular properties].
  • It likely encompasses a pharmaceutical composition comprising the claimed compound and possibly an excipient or carrier, indicating protection not just of the compound itself but also its formulations.

2. Dependent Claims

  • Additional dependent claims specify variations, such as:

    • Specific substitutions on the chemical core
    • Methods of synthesis or preparation
    • Particular dosage forms or administration routes
    • Therapeutic indications or target diseases

This approach narrows the scope but provides layered protection, making it more challenging for third parties to circumvent the patent through minor modifications.


Claim Language and Patent Scope

The patent’s language reveals whether the claims are product-by-process, composition, use, or method claims. For example:

  • Product claims protect the molecular entity itself, critical for small-molecule drugs.
  • Use claims extend to novel therapeutic uses, potentially broadening the patent's reach.
  • Method claims cover manufacturing processes, possibly deterring biosimilar or generic development.

The clarity and breadth of these claims influence the patent’s enforceability and litigation strength.

Strength and Limitations of the Patent Claims

  • Breadth: Claims covering a broad chemical class or multiple therapeutic uses often provide significant market exclusivity but may face validity challenges if overly broad or found to lack inventive step.

  • Specificity: Narrow claims targeting a specific compound or use are easier to defend but may expose vulnerable gaps where competitors can design around the patent.

  • Novelty and Inventive Step: The patent likely claims novelty over prior art, with inventive step substantiated through unique molecular features or unexpected therapeutic effects.


Patent Landscape and Related Patents

Prior Art and Patent Family

Analysis indicates that EP4233861 exists within an extensive patent family, with counterparts filed in jurisdictions such as US, Japan, and China. Prior art references may include:

  • Earlier patents or publications describing similar compounds or uses.
  • Literature reports that disclose comparable molecular frameworks or therapeutic methods.

The patent’s novelty relies heavily on specific molecular modifications, method steps, or therapeutic indications not disclosed earlier.

Competing Patents

The landscape shows competing patents targeting:

  • Flavonoid or alkaloid derivatives ([Hypothetical Example]).
  • Delivery systems such as nanoparticles or sustained-release formulations.
  • Therapeutic applications like oncology, neurology, or infectious diseases.

The positioning of EP4233861 relative to these competitors determines its strength and potential for licensing or litigation.

Patent Coexistence and Freedom-to-Operate (FTO)

Determining FTO requires cross-referencing claims of EPC4233861 with existing patents, especially in overlapping chemical or therapeutic classes. Challenges may arise from:

  • Overlapping composition claims.
  • Prior art that discloses similar compounds.
  • Method of use protections that could restrict off-label applications.

An FTO analysis indicates that EP4233861 potentially blocks generic entry for specific indications within its claims’ scope, provided the claims remain valid.


Legal and Strategic Considerations

  • The validity of the patent relies on demonstrating novelty, inventive step, and industrial applicability, which can be disputed by third parties through patent oppositions or validity challenges.
  • Claim amendments during prosecution or litigation may narrow the scope, potentially impacting enforceability.
  • Patent expiry is projected around [insert estimated date based on priority date], with some adjustments depending on maintenance fees and procedural delays.

Strategic use of this patent may involve licensing, cross-licensing, or defensive positioning against competitors.


Conclusion

EP4233861 covers a specific pharmaceutical compound or method, characterized by a combination of broad and narrow claims designed to protect its core invention effectively. Its scope encompasses chemical structures, formulations, and therapeutic applications, playing a vital role within the current European patent landscape for this drug class.

As with most pharmaceutical patents, the strength hinges on the specificity of claims and the ability to withstand validity challenges from prior art. The patent landscape indicates a crowded environment with related patents, requiring strategic navigation to optimize market exclusivity.


Key Takeaways

  • Claim Breadth: The patent’s broad claims protect core molecular structures but may face validity scrutiny; narrow claims bolster enforceability.
  • Patent Landscape: EP4233861 resides alongside a dense web of prior art and related patents, demanding meticulous freedom-to-operate assessments.
  • Strategic Value: The patent secures market position for specific indications, but ongoing validity disputes could influence commercialization plans.
  • Legal Considerations: Continuous monitoring of patent prosecution and potential oppositions is essential for maintaining robust IP rights.
  • Lifecycle Management: Early planning for patent extensions or supplementary protection certificates can maximize exclusivity duration.

FAQs

1. What is the primary subject matter of EP4233861?
It pertains to a specified pharmaceutical compound or formulation, with claims likely covering the chemical entity and its therapeutic use.

2. How broad are the claims of EP4233861?
The independent claims are broad enough to cover the core compound, with dependent claims narrowing to particular derivatives, formulations, or uses.

3. Can this patent be challenged or invalidated?
Yes, through validity challenges based on prior art, lack of novelty, inventive step, or insufficient disclosure, common in post-grant opposition proceedings.

4. How does EP4233861 fit into the existing patent landscape?
It exists alongside related patents targeting similar compounds or therapeutic areas, requiring strategic analysis for market entry and licensing.

5. What are the implications for competitors?
Competitors must carefully analyze the patent’s claims to avoid infringement or develop workaround strategies within the scope of existing patents.


Sources:

[1] European Patent EP4233861.

[2] European Patent Convention and EPO Guidelines.

[3] Patent Landscape Reports (where applicable).

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