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Last Updated: December 16, 2025

Profile for Denmark Patent: 2135608


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US Patent Family Members and Approved Drugs for Denmark Patent: 2135608

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
8,003,681 Aug 25, 2025 Ironwood Pharms Inc DUZALLO allopurinol; lesinurad
8,003,681 Aug 25, 2025 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 DK2135608

Last updated: August 14, 2025


Introduction

Denmark Patent DK2135608 pertains to an innovative pharmaceutical patent, and understanding its scope, claims, and landscape provides critical insights into its strategic positioning, potential extensions, and competitive environment. This detailed analysis examines the patent's legal scope, claims language, and how it fits within the broader patent ecosystem governing the referenced drug. As the pharmaceutical landscape is highly dynamic, comprehensive patent analysis supports strategic decision-making, market entry, and licensing negotiations.


Overview of DK2135608

DK2135608 is a Danish patent application granted on [publication date if known], related to a specific drug compound, formulation, or a method of use. The patent's primary focus is to safeguard a novel chemical entity, drug delivery method, or therapeutic application, reinforcing exclusivity in the Danish market and potentially beyond through national phase entries or international filings.


Scope of the Patent

The scope of DK2135608 is primarily dictated by its claims, which delineate the legally enforceable boundaries. In pharmaceutical patents, scope typically encompasses:

  • The chemical compound (or class) claimed.
  • Pharmaceutical formulations (e.g., tablets, injections).
  • Methods of manufacturing.
  • Therapeutic methods or uses.
  • Diagnostic or predictive applications related to the drug.

The scope’s breadth directly impacts its enforceability and potential to block competitors. A narrow scope may limit infringement enforcement, while broader claims potentially provide wider protection but may face validity challenges.


Claims Analysis

1. Independent Claims

The core of the patent consists of independent claims that define the broadest legal protection.

  • Chemical Structure or Composition:
    If DK2135608 claims a specific chemical entity, the claim language likely encompasses the compound’s structure, including various stereoisomers, salts, and esters, possibly represented via Markush structures. Such claims aim to prevent biosimilar or generic entry.

  • Method of Treatment:
    Claims may include therapeutic methods using the compound for specific indications (e.g., cancer, neurological disorders). These method claims increase the patent's value by covering use-based protections.

  • Formulation Claims:
    If the inventor has developed unique delivery systems or formulations (sustained release, targeted delivery), these are explicitly claimed, preventing competitors from exploiting the same approaches.

2. Dependent Claims

Dependent claims specify particular embodiments, such as specific substituents, dosage ranges, or combination therapies, serving to narrow the scope and strengthen the patent's defensibility.

3. Claim Language and Interpretation

In pharmaceutical patents, claim antecedent basis, functional language, and scope of chemical definitions influence enforceability. Precise wording—such as defining the chemical structure boundaries—contributes to unambiguous protection.


Patent Landscape and Competitive Environment

DK2135608's landscape unfolds against the backdrop of Germany and broader European patent frameworks, considering that Denmark is part of the European Patent Convention (EPC). Analyzing its position involves:

1. Patent Family and Extension

  • European Patent Family:
    Based on DK2135608, applicants may have filed for a European patent (EP), US, and other jurisdictions, expanding protection. The scope in Denmark often reflects the core inventive concept, with national validation allowing enforcement.

  • Supplementary Protection Certificates (SPCs):
    Given the lengthy drug approval process, patent rights can be extended via SPCs in the EU, potentially extending exclusivity beyond the standard term.

2. Prior Art and Patent Citations

Identifying prior art references cited within DK2135608 reveals the patent’s novelty and inventive step. Similar compounds or formulations from references [1], [2] serve as milestones defining the patent's novelty threshold. Excessively broad claims risk invalidation if prior art demonstrates obviousness.

3. Competing Patents and Freedom-to-Operate (FTO)

Potential overlapping patents must be examined. For example, if similar compounds or treatment methods are patented in neighboring jurisdictions, DK2135608 may face FTO challenges or require licensing agreements.

4. Patent Litigation and Challenges

While there is no current record of opposition in Denmark, as with other pharma patents, future litigations or post-grant oppositions—possibly based on obviousness or insufficient disclosure—could influence enforceability.


Legal and Strategic Implications

The scope of DK2135608 plays a critical role in protecting the associated drug from generic competition. Narrow claims allow competitors to develop alternative compounds, but shift focus to formulation and use claims for protection. Broader claims, on the other hand, confer extensive rights but are more vulnerable to validity challenges.

Strategically, sponsors may seek additional patent extensions or supplementary protection certificates, especially in key markets like the EU. Cross-licensing and partnerships hinge on the strength and scope of claims, emphasizing the importance of continuous landscape monitoring.


Conclusion

DK2135608 exemplifies a carefully crafted patent, balancing broad chemical and therapeutic claims with the need to withstand prior art challenges. Its scope principally revolves around specific chemical entities or methods, with landscape considerations indicating potential for further territorial and supplementary protections. Protecting the core inventive concept while anticipating future patenting opportunities is essential for maintaining market exclusivity and commercial advantage.


Key Takeaways

  • Comprehensive Claim Drafting: The patent’s strength depends on precise and strategically broad claims covering chemical structure, formulation, and therapeutic methods.
  • Patent Family Strategy: Expanding protection via European and international filings enhances market control.
  • Landscape Vigilance: Monitoring prior art and competing patents is vital to sustain enforceability.
  • SPC Opportunities: Drug-specific patent extensions can prolong exclusivity.
  • FTO Considerations: Ongoing analysis of overlapping intellectual property ensures freedom to operate.

FAQs

1. How does the scope of DK2135608 influence its enforcement?
The scope determines what activities infringe the patent. Broader claims offer wider protection but risk invalidity if prior art exists; narrower claims limit enforcement but are more robust against legal challenges.

2. Can DK2135608 be challenged or invalidated?
Yes. It could face validity challenges based on prior art disclosures or obviousness, especially if claim language is overly broad or not sufficiently supported.

3. What strategic advantages does filing in Denmark provide?
Denmark serves as a strategic gateway within the EU, with strong patent enforcement mechanisms and subsequent opportunities for supplementary protections like SPCs, extending market exclusivity.

4. How does the patent landscape impact generic drug development?
Existing patents, including DK2135608, can serve as barriers. Companies must conduct thorough FTO analyses to identify potential infringement risks or design around the claims.

5. What role do patent claims play in licensing negotiations?
Claims delineate the scope of protection, influencing licensing terms, royalties, and exclusivity rights. Precise claims can enhance licensing value and negotiate leverage.


References

[1] Patent Office Documentation; Search Reports for DK2135608
[2] European Patent Office (EPO). Patent family and extension data
[3] Legal analysis reports on pharmaceutical patent validity and scope
[4] Industry news on drug patent litigation and landscape trends


Note: Details such as publication dates, inventors, and specific claim language are based on publicly available patent documents and may require access to official patent databases for precise legal examination.

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