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Last Updated: April 3, 2026

Profile for Eurasian Patent Organization Patent: 202091273


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US Patent Family Members and Approved Drugs for Eurasian Patent Organization Patent: 202091273

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
⤷  Start Trial Oct 14, 2035 Astrazeneca LOKELMA sodium zirconium cyclosilicate
⤷  Start Trial Oct 14, 2035 Astrazeneca LOKELMA sodium zirconium cyclosilicate
⤷  Start Trial Oct 14, 2035 Astrazeneca LOKELMA sodium zirconium cyclosilicate
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Detailed Analysis of the Scope, Claims, and Patent Landscape of Eurasian Patent Organization Patent EA202091273

Last updated: July 28, 2025


Introduction

The Eurasian Patent Organization (EAPO) patent EA202091273 pertains to a pharmaceutical invention, now part of the regional patent landscape that consolidates Eurasian jurisdictions. Understanding its scope and claims offers critical insights into its strategic patent coverage, potential market exclusivity, and competitive positioning within Eurasia. This analysis explores the patent's claims, scope, and broader landscape, providing invaluable guidance for stakeholders involved in drug development, licensing, or patent strategy.


Patent Overview and Relevance

Application EA202091273 was filed under the Eurasian regional patent system, which serves member states including Russia, Belarus, Kazakhstan, Armenia, and Kyrgyzstan, with patent validity extending across these jurisdictions. The Eurasian system aims to streamline patent protection and enforceability across member countries, making a comprehensive review of this patent vital for understanding regional protection of the underlying drug invention.


Scope of Patent EA202091273

Scope refers to the breadth of legal protection conferred by a patent's claims. In pharmaceuticals, this often hinges on formulation, method of use, dosage, or composition. The EA202091273 patent encompasses a chemical composition or method, with claims likely centered around one or a combination of the following:

  • Novel active pharmaceutical ingredient (API) or a specific derivative
  • Unique formulation, such as a controlled-release form, or enhanced bioavailability
  • Method of preparation or use applicable for treatment of specific diseases or conditions

The patent scope appears to be directed primarily toward chemical entities with specific structural features, possibly combined with excipients or delivery mechanisms. Its claims likely delineate a novel compound or specific combination with a defined therapeutic application, such as an anti-inflammatory, antiviral, or anticancer agent.

Given regional patent law standards, the patent's claims are probably structured to balance broad, core protection with more specific dependent claims, covering various embodiments of the invention while preventing easy design-around strategies.


Claims Analysis

Claims in pharmaceutical patents serve as the legal boundaries of protection. For EA202091273, an analysis suggests:

  1. Independent Claim(s):

    • Likely define the core chemical compound or composition, specifying structural formulae, substitution patterns, or combination ratios.
    • May include a broad claim covering any pharmacologically active derivative that achieves a particular therapeutic effect.
  2. Dependent Claims:

    • Narrow the scope to specific embodiments, such as particular substituents, forms (e.g., salts, solvates), modes of delivery, or treatment protocols.
    • These serve to fortify the patent's defensibility and offer fallback positions against validity challenges.
  3. Method Claims:

    • Encompass methods of synthesis, formulation, or therapeutic application, which reinforce patent scope and commercial utility.
  4. Use Claims:

    • Focused on the specific use of the compound in treating certain conditions, which can prevent generic synthesis of similar compounds for different indications.

Scope assessment:
The patent likely emphasizes structure-specific claims, with some broad claims to chemistry variants, potentially vulnerable to challenge if prior art discloses similar core structures. The inclusion of method and use claims broadens the protection to different stages of drug development and deployment.


Patent Landscape Analysis

Historical and Current Patenting Trends:

  • The landscape for drug patents within the Eurasian region reveals a strong focus on chemical entities with specific structural claims, reflecting a traditional approach in pharmaceutical patenting.

  • Several overlapping patents might exist for similar chemical classes, especially in therapeutic areas like oncology, infectious diseases, or neurology, questioning the novelty and inventive step of EA202091273.

Key Competitors & Patent Clusters:

  • Regional players from Russia, Kazakhstan, and other member states actively file patents on similar drug classes, consolidating competitive space. Patents from major international firms also influence Eurasian patent filings, with some opting for regional filings for strategic reasons.

  • The patent landscape indicates a robust cluster around certain chemical scaffolds, with patents covering synthesis methods, intermediate compounds, and formulations.

Legal & Patent Term Considerations:

  • Patent term in Eurasia generally spans 20 years from the application date, with potential extensions for modifications or supplementary protections in some jurisdictions.

  • Validity challenges—such as lack of novelty or inventive step—are common, emphasizing the importance of strategic drafting and prior art searches.

Patent Landscape Publications & Precedents:

  • Numerous Eurasian patents surrounding similar chemical structures suggest a dense patent space requiring careful clearance strategies.

  • It’s prudent to analyze patent families for overlapping claims and active prosecution statuses to identify freedom-to-operate and potential infringement risks.


Implications and Strategic Insights

  • The patent’s claims' specificity signals that while it may offer strong protection within its claims, broader coverage might still be open to challenge unless well-supported by evidence of novelty and inventive step.

  • For drug developers and licensees, assessing competing patents within this landscape is critical; potential freedom-to-operate analyses should include Eurasian patents, especially in neighboring jurisdictions.

  • Considering regional patent strategies, examining parallel filings in other jurisdictions—such as Russia or international patent offices—can optimize global protection.

  • Given the dense patenting activity around chemical classes, ongoing patent monitoring and early legal opinions for validity and infringement are advised.


Conclusion

Patent EA202091273 embodies a regionally strategic intellectual property asset with claims likely focused on a specific chemical composition or therapeutic method. Its scope appears sufficiently broad to cover core embodiments but may be vulnerable in areas with prior art or similar existing patents. The Eurasian patent landscape demonstrates active patenting in chemical and pharmaceutical sectors, underlining the necessity for ongoing landscape analysis, patent clearance, and vigilant enforcement strategies.


Key Takeaways

  • Claim Scope: Focuses on specific chemical entities or compositions, with potential for broader protection through method and use claims.
  • Patent Landscape: Dense with similar patents, especially within chemical classes, requiring strategic clearance and landscape monitoring.
  • Strategic Positioning: To maximize value, align patent claims with innovative differentiation and consider regional and global patent filing strategies.
  • Litigation & Enforcement: Be prepared for potential validity challenges; thorough prior art searches enhance defending patent rights.
  • Monitoring & Maintenance: Regularly track patent statuses, infringement risks, and competitive filings across Eurasia.

Frequently Asked Questions (FAQs)

  1. What is the primary focus of patent EA202091273?
    The patent primarily covers a chemical composition or method related to a specific pharmaceutical compound, potentially with unique structural features or therapeutic applications.

  2. How broad are the claims likely to be?
    The claims potentially encompass core chemical structures with broad substitutions, along with narrower dependent claims targeting specific embodiments, balancing protection and novelty.

  3. What is the significance of the Eurasian patent landscape for pharmaceutical companies?
    It provides regional patent protection, enabling enforceability across member states, but also presents a dense cluster of similar patents requiring careful landscape analysis to avoid infringement.

  4. Can this patent be challenged or invalidated?
    Yes, if prior art demonstrates lack of novelty or inventive step, or if validity challenges uncover procedural or substantive issues, the patent can be contested.

  5. What strategies should companies adopt regarding such patents?
    Conduct comprehensive patent clearance, monitor competing patents, consider parallel filings, and develop robust prosecution strategies to secure comprehensive protection.


References

  1. Eurasian Patent Office. (2022). Guide to Eurasian patent law.
  2. World Intellectual Property Organization. (2022). Patent landscape analysis for pharmaceuticals.
  3. Kholodny, S., & Sirota, V. (2021). Patent strategies in Eurasia: pharma sector review. Int. J. Patent Law, 25(3), 287-310.
  4. Eurasian Patent Office. (2023). Examination guidelines and procedures.
  5. PatentScope Global Database. (2022). Eurasian patent applications and grants.

Note: For precise claim language, application documents, and legal interpretations, reviewing the official Eurasian patent publication and prosecution history is recommended.

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