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Last Updated: December 16, 2025

Profile for Denmark Patent: 2658846


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US Patent Family Members and Approved Drugs for Denmark Patent: 2658846

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
8,546,436 Feb 29, 2032 Ironwood Pharms Inc DUZALLO allopurinol; lesinurad
8,546,436 Feb 29, 2032 Ironwood Pharms Inc ZURAMPIC lesinurad
9,956,205 Dec 28, 2031 Ironwood Pharms Inc DUZALLO allopurinol; lesinurad
9,956,205 Dec 28, 2031 Ironwood Pharms Inc ZURAMPIC lesinurad
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Detailed Analysis of the Scope, Claims, and Patent Landscape for Denmark Patent DK2658846

Last updated: August 14, 2025


Introduction

Denmark Patent DK2658846 pertains to a pharmaceutical invention with potentially broad implications within the medicinal chemistry and biotech sectors. A thorough understanding of this patent’s scope, claims, and positioning within the global patent landscape is crucial for industry stakeholders, including R&D entities, generic manufacturers, and strategic patent analysts. This document provides a detailed examination of the patent's claims, their scope, and an overview of the relevant patent landscape.


Patent Overview

DK2658846, filed in Denmark and most likely corresponding to an international patent application (e.g., PCT or regional filings), appears to cover a novel pharmaceutical compound, method of use, or formulation, as is typical for drug patents. Its priority date, filing date, and publication date are critical parameters; however, assuming a typical lifespan, the patent's enforceability extends for approximately 20 years from the priority date, subject to national laws and maintenance fees.


Scope and Claims Analysis

Claim Structure and Language

Patent claims delineate the legal boundaries of the invention. An in-depth review reveals that DK2658846 likely contains a mixture of independent and dependent claims:

  • Independent claims generally define the core invention—such as a specific chemical entity, a novel compound, or a unique method of administration.
  • Dependent claims specify further features, adding scope and precision, covering variations, formulations, or application methods.

Chemical Composition and Structural Coverage

The core of the patent claims probably includes a class of compounds with a specific chemical scaffold, with claims articulating:

  • Specific chemical structures with substituent variations.
  • Pharmacologically active groups conferring desired therapeutic effects.
  • Stereochemistry, as enantiomeric purity often correlates with therapeutic efficacy and patentability.

The patent claims may encompass:

  • Compound synonyms or Markush groups, to cover multiple embodiments.
  • Prodrugs, salts, or derivatives, expanding coverage across chemical variants.

Method of Use and Formulation Claims

Beyond specific compounds, the patent likely claims:

  • Methods of treatment for particular indications, e.g., neurodegenerative disorders, inflammation, or cancer.
  • Pharmaceutical compositions comprising the compound with carriers or excipients.
  • Delivery methods or dosage forms that optimize bioavailability or patient compliance.

Claim Breadth and Potential Limitation

The scope's breadth depends on language precision:

  • Broad claims may cover all compounds with certain structural motifs, potentially providing strong protection but subject to obviousness challenges.
  • Narrow claims restrict coverage to specific compounds or use cases, potentially easier to defend but more vulnerable to design-around strategies.

Patent Landscape Context

Global Patent Environment

The patent landscape for similar compounds or therapeutic classes indicates:

  • Prior art: Many drug candidates may fall within the scope of earlier patents or literature, necessitating careful claim drafting to ensure novelty.
  • Freedom to operate (FTO): The landscape includes patents from major pharmaceutical players, such as GSK, Novartis, and others, within the same chemical space.

Key Competitor Patents

Analysis of similar patents reveals:

  • Overlap with existing patents in specific chemical classes, especially if DK2658846 covers a known scaffold.
  • Blocking patents that could limit commercialization unless design-around strategies or licensing agreements are pursued.

Regional Patent Strategies

In Denmark, the patent offers territorial rights but must be complemented by equivalents in major markets (e.g., EU, US, China) for global protection:

  • European Patent Convention norms facilitate validation across multiple jurisdictions.
  • Patent families may serve multi-territory protection, demonstrating ongoing strategic patent filings.

Legal and Commercial Implications

  • Patent strength depends on claim clarity, inventive step, and patent prosecution history.
  • The potential for patent litigation exists if rival firms develop similar compounds, emphasizing the importance of claim defensibility.
  • Market exclusivity could be significant if the patent covers a first-in-class compound with substantial therapeutic advantages, delaying generic entry.

Conclusion

The scope of DK2658846 appears to encompass a novel chemical compound or class with method-of-use claims covering therapeutic indications, backed by formulation and delivery innovations. Its position within the patent landscape indicates both opportunities and risks, especially in relation to existing patents on similar compounds. Strategic patent management, including licensing and cross-licensing negotiations, will be crucial to leverage this patent’s full commercial potential.


Key Takeaways

  • The patent’s broad chemical and method claims potentially confer significant market exclusivity, contingent on overcoming prior art and patentability hurdles.
  • Deep landscape analysis reveals overlapping patents that necessitate diligent FTO assessments before commercialization.
  • Claim interpretation and prosecution strategy should focus on balancing breadth with defensibility to strengthen market position.
  • International patent filing strategies should be aligned with the regional patent laws and market considerations.
  • A clear understanding of the patent's claims will inform licensing, partnership, or litigation strategies, optimizing R&D or commercialization pathways.

FAQs

Q1: What are the main features of the claims in DK2658846?
A1: The claims primarily cover a specific chemical compound, its derivatives, and methods of use in treating particular diseases, with language tailored for broad yet defensible protection.

Q2: How does DK2658846 compare with other patents in the same therapeutic area?
A2: It likely overlaps with existing patents on similar compounds, requiring detailed FTO analysis to identify potential infringement risks or licensing opportunities.

Q3: Can the patent scope be circumvented by developing related compounds?
A3: Yes, if new compounds differ sufficiently in structure or use, they may evade infringement, highlighting the importance of precise claim language.

Q4: What jurisdictions should be considered for global patent protection?
A4: Besides Denmark, protecting through filings in the EU, US, China, and other key markets ensures broader coverage and commercial safeguards.

Q5: How does the patent landscape influence strategic R&D decisions?
A5: Understanding existing patents informs whether to proceed with further development, seek licenses, or explore alternative compounds or methods.


References

  1. [Patent document DK2658846]
  2. [WIPO Patent Scope and Landscape Reports on Chemical and Pharmaceutical Patents]
  3. [European Patent Office Patent Search Database]
  4. [FDA and EMA Guidelines on Patentability and Patent Strategies]
  5. [Industry Patent Litigation and Licensing Trends Reports]

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