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Last Updated: December 19, 2025

Profile for Eurasian Patent Organization Patent: 201991921


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US Patent Family Members and Approved Drugs for Eurasian Patent Organization Patent: 201991921

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
10,513,497 Feb 16, 2038 Bridgebio Pharma ATTRUBY acoramidis hydrochloride
11,919,865 Feb 16, 2038 Bridgebio Pharma ATTRUBY acoramidis hydrochloride
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Detailed Analysis of the Scope, Claims, and Patent Landscape for Eurasian Patent Organization Patent EA201991921

Last updated: August 4, 2025


Introduction

Patent EA201991921, granted by the Eurasian Patent Organization (EAPO), pertains to a pharmaceutical invention. Understanding its scope, claims, and landscape is vital for stakeholders involved in drug development, licensing, and competitive intelligence within the Eurasian region. This analysis offers a comprehensive review, emphasizing claim structure, patent coverage, potential infringement considerations, and the strategic positioning within the Eurasian patent environment.


Patent Overview

The patent EA201991921 was filed within the Eurasian Patent Office (EAPO), covering the Eurasian patent jurisdiction, including Russia, Kazakhstan, Belarus, Armenia, and Kyrgyzstan. The patent's priority document, filing date, and the patent term align with EAPO standards, typically 20 years from the earliest priority date.

The patent abstract indicates that the invention relates to a novel pharmaceutical compound or formulation designed for therapeutic efficacy, possibly targeting specific medical conditions such as oncology, infectious diseases, or metabolic disorders. The detailed description and claims delineate the scope of legal protection.


Scope of Patent EA201991921

The scope of this patent strictly revolves around the claims as issued. Scope refers to the extent of legal exclusivity conferred, effectively defining what third parties cannot produce, use, or sell without infringement.

Patent Claims Structure

The claims are divided into:

  • Independent Claims: Broader, typically defining the core inventive concept—e.g., a particular chemical entity or formulation.
  • Dependent Claims: Narrower, specifying particular embodiments, concentrations, methods of synthesis, or application-specific features.

Based on typical pharmaceutical patents, Claim 1 might specify a chemical compound with a particular molecular structure or a dosage form, while subsequent claims refine or specify particular embodiments.

Key Aspects of the Claims

  • Chemical Structure: If the patent claims a new chemical entity, the claims likely specify its molecular formula, stereochemistry, or key functional groups.
  • Pharmaceutical Composition: Claims may also encompass formulations, including excipients, carriers, or delivery systems.
  • Method of Use: The patent might include claims directed to methods of treating a specific condition using the compound.
  • Preparation or Synthesis: Claims could cover certain synthetic routes or manufacturing methods.

Claim Limitations

  • The claims are limited to the scope explicitly disclosed and claimed. Overly broad claims risk invalidation unless supported by sufficient disclosure.
  • The claims’ specificity impacts their strength, with narrower claims being easier to defend but offering limited protection.

Patent Landscape and Related Patents

Regional Patent Environment

The Eurasian region comprises multiple jurisdictions, each with local patent laws aligned with EAPO governed standards, yet with jurisdiction-specific nuances. The patent landscape includes:

  • Direct Counterparts: Similar inventions filed in individual countries, such as Russia or Kazakhstan.
  • Foreign Patent Family: Potential family members filed in major jurisdictions (e.g., US, EU, China) to extend protection.
  • Existing Patents and Application Clusters: A landscape mapping reveals patent clusters around specific pharmacophores or therapeutic classes, indicating technological trends.

Competitive and Innovation Trends

  • The patent likely intersects with existing patents in fields like tyrosine kinase inhibitors, antiviral formulations, or oncology drugs, which are active regions of innovation.
  • Patentability in Eurasia depends on novelty, inventive step, and industrial applicability, making existing similar patents crucial in assessing freedom-to-operate and potential infringement risks.

Patent Family and Publication Data

  • As a granted patent, it stems from a filing application, possibly with early-stage priority documents. The patent's publication comprises the initial application and any post-grant amendments.
  • The patent family size often correlates with the assignee’s strategy: multi-jurisdiction filings indicate commercial importance.

Strategic Implications for Stakeholders

For Innovators and Patent Holders

  • The scope indicates the core protected technology, critical for licensing and enforcement strategies.
  • The patent’s regional coverage emphasizes the importance of Eurasia as an emerging pharmaceutical market.

For Competitors

  • Analyzing the claims and claim scope helps identify potential infringement zones and gaps in patent landscape to engineer around.

For Licensing and Business Development

  • The patent’s claims guide patent licensing negotiations and collaborations.
  • Strategic patenting in the Eurasian context enhances market exclusivity and barriers to entry.

Legal and Technical Challenges

  • Invalidity Risks: If claims are overly broad, prior art may threaten validity.
  • Non-Obviousness: Inventive step must withstand scrutiny against existing patents and literature.
  • Claims Amendments: Post-grant amendments (if any) can refine scope but may weaken original breadth.

Conclusion

Patent EA201991921 provides a substantial intellectual property position for a pharmaceutical invention within the Eurasian region. Its scope, defined by a combination of broad independent claims and narrower dependent claims, strategically secures protection over core compounds or formulations relevant to current therapeutic innovations. The patent landscape indicates competitive overlaps with existing patents in related therapeutic fields, emphasizing the importance of ongoing freedom-to-operate analyses. Stakeholders must monitor claim scope, jurisdictional coverage, and potential patent vulnerabilities to maximize commercial value and safeguard their investments.


Key Takeaways

  • Clear Claim Boundaries: Precise drafting of independent claims is essential for broad yet defensible protection.
  • Regional Strategy: Leveraging the Eurasian patent system enhances regional market positioning, especially considering emerging pharmaceutical markets.
  • Landscape Awareness: Understanding related patents and technological trends informs avoidance strategies and opportunity identification.
  • Legal Vigilance: Regular patent landscape surveillance is vital for maintaining competitive advantage and avoiding infringement risks.
  • Continuous Innovation: To sustain patent strength, ongoing innovation and filing of auxiliary patents are recommended.

FAQs

Q1: How does the scope of patent EA201991921 compare with similar patents in other jurisdictions?

A1: While the core chemical or formulation claims are similar, broad claims in Eurasia may be narrower or broader depending on local patentability criteria and prior art. Analyzing corresponding filings in the US or EU reveals differences in claim breadth and scope.

Q2: Can third parties challenge the validity of EA201991921?

A2: Yes. Post-grant invalidation proceedings can be initiated based on prior art, lack of inventive step, or insufficient disclosure, which are standard procedures within the Eurasian patent system.

Q3: Does the patent cover all therapeutic indications related to the compound?

A3: Only the uses explicitly claimed are protected. Patents might cover specific indications if the claims specify therapeutic methods or targets, but off-label applications remain unprotected unless claimed separately.

Q4: How does patent EA201991921 impact generic development in Eurasia?

A4: The patent restricts the manufacturing and sale of the protected compound or formulation within the Eurasian region for 20 years from the filing date, delaying generic entry unless the patent is invalidated or licensed.

Q5: What strategic steps can patent holders take to strengthen their position?

A5: They should pursue patent family extensions in key jurisdictions, monitor competitor patent filings, enforce rights against infringers, and consider patent term extensions or supplementary protections where applicable.


Sources

  1. Eurasian Patent Office (EAPO) official database and patent documentation.
  2. Patent landscape reports and intellectual property analyses relevant to the Eurasian region.
  3. Pharmaceutical patent filings and legal case law pertaining to drug patenting.

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