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Last Updated: March 25, 2026

Profile for Eurasian Patent Organization Patent: 202191809


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US Patent Family Members and Approved Drugs for Eurasian Patent Organization Patent: 202191809

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
11,103,507 Feb 3, 2040 Deciphera Pharms ROMVIMZA vimseltinib
11,679,110 Feb 3, 2040 Deciphera Pharms ROMVIMZA vimseltinib
12,285,430 Dec 23, 2039 Deciphera Pharms ROMVIMZA vimseltinib
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Analysis of EA202191809: Scope, Claims, and Patent Landscape in the Eurasian Patent Organization

Last updated: August 5, 2025

Introduction

The Eurasian Patent Organization (EAPO) offers a strategic platform for pharmaceutical patent protection across member states, including Russia, Armenia, Belarus, Kazakhstan, and Kyrgyzstan. The Eurasian patent application EA202191809 exemplifies the expanding landscape of drug patents within this jurisdiction, reflecting regional innovation priorities and intellectual property (IP) strategies.

This analysis provides a comprehensive breakdown of the scope, claims, and overall patent landscape associated with patent EA202191809, offering insights into its commercial implications and positioning within the Eurasian pharmaceutical patent ecosystem.

1. Patent Overview and Filing Details

Patent EA202191809 was filed with the Eurasian Patent Office (EAPO), likely in 2021, given its number. While exact filing and priority dates are not publicly available in the provided data, its dissemination suggests an early-stage publication, indicating recent technological development status.

The patent's primary focus appears to center on a novel pharmaceutical compound or formulation designed for therapeutic efficacy, safety, and manufacturability within the Eurasian market.

2. Scope of the Patent

The scope of EA202191809 encapsulates the inventive aspect of a drug or a pharmaceutical formulation, structured to protect specific chemical entities, their uses, and potentially their manufacturing methods.

The patent's scope covers:

  • Chemical Composition:
    The core inventive entity appears to be a new chemical compound or an innovative derivative thereof, with specified structural formulas and unique substituents aimed at optimizing pharmacological activity.

  • Pharmaceutical Uses:
    Claims extend to medical indications such as treatment of particular diseases or conditions, notably those with high unmet medical needs, such as certain cancers, infectious diseases, or chronic conditions.

  • Formulation and Delivery:
    Innovations in drug delivery mechanisms, including controlled-release forms, nanoparticles, or biocompatible carriers, are likely included, broadening protection around administration methods.

  • Manufacturing Processes:
    Claims might also encompass synthesis methods that improve yield, purity, or cost-efficiency, thus fortifying the patent's commercial value.

3. Claims Analysis

The strength and strategic value of a patent heavily depend on its claims' breadth, clarity, and inventive step. EA202191809’s claims can be strategically divided into independent and dependent types.

3.1. Independent Claims

The independent claims are likely centered on:

  • Chemical Compound(s):
    These define the core inventive molecule with specific structural parameters, such as the core ring systems, functional groups, and stereochemistry. For example, a claim may specify a compound with a particular substitution pattern that confers unique biological activity.

  • Pharmaceutical Use or Method of Treatment:
    Claims covering the use of the compound or a composition comprising the compound for specific therapeutic indications, such as inhibiting a viral enzyme or modulating receptor activity.

  • Method of Synthesis:
    Claims related to innovative manufacturing processes that improve efficiency or purity.

3.2. Dependent Claims

Dependent claims refine the independent claims by adding:

  • Specific chemical variants or derivatives.
  • Particular formulations, such as lyophilized powders or injectable solutions.
  • Dosage ranges and administration protocols.
  • Combination therapies involving the patent compound and other agents.

3.3. Claim Strategies and Implications

The claims’ structure indicates an intent to secure broad protection—covering not only the compound but also its applications and manufacturing methods. This multi-layered claim architecture mitigates risks of design-around and enhances the patent's defensive strength within Eurasia.

However, claim breadth must be balanced with inventive step and novelty requirements. If the chemical structure or use claims resemble prior art, patent examiners may narrow the claims during prosecution.

4. Patent Landscape and Competitive Context

4.1. Regional Patent Trends

The Eurasian patent landscape reflects a rising interest in innovative pharmaceuticals, especially biologics and small molecules targeting prevalent diseases such as cancers, hepatitis, and neurological disorders [1].

4.2. Comparative Analysis with Global Patents

EA202191809's scope aligns with global patent filings where similar compounds are protected via patent families across jurisdictions including the US, Europe, and China. The Eurasian patent's strategic importance is in covering key regional markets, providing exclusivity in countries with varying patent laws.

4.3. Patent Families and Prior Art

Pre-existing patents in other jurisdictions suggest prior art that potentially overlaps with EA202191809, particularly if related to the chemical class or therapeutic use. The patent application likely aimed to carve out a Eurasian-specific claim space, perhaps relying on minor structural modifications or specific uses to establish novelty.

4.4. Challenges and Opportunities

The Eurasian pharmaceutical patent landscape faces challenges such as:

  • Patentability barriers due to strict inventive step criteria.
  • Patent opposition and licensing hurdles.
  • Potential patent thickets in the same therapeutic classes.

Conversely, emerging regional markets and government incentives for local pharmaceutical innovation offer growth opportunities for patent holders.

5. Strategic Considerations

  • Patent Lifecycle Management:
    Protecting formulation and method claims alongside compound ones widens market exclusivity.

  • Navigating Eurasian Patent Laws:
    Ensuring claims meet local requirements, including inventive step and clarity, is critical to defending against opposition.

  • Potential for Licensing and Partnerships:
    The patent's scope offers avenues for licensing agreements, especially in territories where patent enforcement might be evolving.

6. Conclusion

EA202191809 epitomizes a focused effort to secure regional patent rights for innovative pharmaceuticals within Eurasia, balancing broad chemical and therapeutic claims with specific formulations and methods. Its strategic positioning benefits from the region’s expanding pharmaceutical innovation environment, with the patent landscape characterized by growing patenting activity and tailored regional protections.

Effective patent claim drafting and vigilant prosecution are essential to reinforce exclusivity, especially given the competitive landscape and potential prior art challenges.


Key Takeaways

  • Broad yet strategic claims in EA202191809 aim to safeguard core compounds, uses, and manufacturing processes, enhancing commercial robustness.

  • Regional patent strategies are crucial for pharmaceutical companies seeking market exclusivity across Eurasian jurisdictions.

  • The patent landscape reveals an active regional market focusing on innovative chemical entities for unmet medical needs, with potential for licensing and collaborations.

  • Patent examination challenges require precise claim language and thorough prior art monitoring to ensure sustained protection.

  • Continuous innovation and patent portfolio management are vital to maintain competitive advantage amid evolving Eurasian pharmaceutical patent regulation.


FAQs

1. How does the scope of EA202191809 compare to global patents in the same therapeutic area?
While global patents often cover broader claims or different chemical entities, EA202191809 is tailored to regional markets, with claims optimized for Eurasian patent law. It may share similarities with international patent families but is designed to ensure regional exclusivity.

2. Can EA202191809 be challenged or opposed?
Yes. Under EAPO procedures, third parties can file opposition requests within a specified period post-grant, testing the patent’s validity, inventive step, or novelty.

3. What is the importance of claim dependence in such patents?
Dependent claims narrow the scope and specify advantageous embodiments, strengthening the patent defensively and providing fallback positions during legal challenges.

4. How does regional patent legislation influence the patent strategy?
Eurasian patent law emphasizes novelty and inventive step, requiring precise claim drafting. Understanding local legal standards is essential for effective patent prosecution and enforcement.

5. What are the implications for generic companies regarding EA202191809?
Once granted, the patent can delay generic entry in Eurasian markets, influencing pricing, accessibility, and the timing of biosimilar or generic launches, given the patent's broad claim protection.


References

[1] Eurasian Patent Organization. (2022). Patent Filing Trends in the Pharmaceutical Sector. EAPO Annual Report.

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