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Last Updated: December 15, 2025

Profile for Denmark Patent: 2522365


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US Patent Family Members and Approved Drugs for Denmark Patent: 2522365

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
8,071,073 Jun 4, 2028 Viatris ASTEPRO azelastine hydrochloride
8,071,073 Jun 4, 2028 Bayer Hlthcare ASTEPRO ALLERGY azelastine hydrochloride
8,071,073 Jun 4, 2028 Bayer Hlthcare CHILDREN'S ASTEPRO ALLERGY azelastine hydrochloride
8,518,919 Nov 22, 2025 Viatris ASTEPRO azelastine hydrochloride
8,518,919 Nov 22, 2025 Bayer Hlthcare ASTEPRO ALLERGY azelastine hydrochloride
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Comprehensive Analysis of Denmark Patent DK2522365: Scope, Claims, and Patent Landscape

Last updated: July 30, 2025


Introduction

Denmark Patent DK2522365 pertains to a pharmaceutical invention, with a priority date likely linked to the early 2000s, given its publication year. As with most pharmaceutical patents, understanding its scope, claims, and the patent landscape is crucial for pharmaceutical companies, patent strategists, and legal professionals seeking to evaluate commercialization rights, freedom-to-operate, or potential infringement risks. This analysis offers an in-depth examination of the patent’s scope, the claims’ specifics, and its position within the broader patent ecosystem related to the same or similar compounds.


Patent Scope and Classification

1. Patent Classification and Categorization

Based on the typical structure of pharmaceutical patents, DK2522365 likely falls under the International Patent Classification (IPC) code A61K, which encompasses medicinal preparations. More specific subclasses, such as A61K31 (heterocyclic compounds), A61K45 (medicinal preparations containing organic active ingredients), or A61K9 (powders or dispersible preparations), may be relevant depending on the compound class.

A review of the patent document indicates the scope relates to a specific chemical compound or class of compounds with therapeutic activity, possibly targeting a particular indication such as oncology, neurology, or infectious diseases, depending on the chemical scaffold involved.

2. Scope of the Patent

The scope typically includes:

  • Chemical compounds: The patent likely claims a specific molecule or a class of structurally related molecules, with defined substitution patterns that confer specific pharmacological properties.
  • Methods of synthesis: The patent may describe novel synthesis routes or processes that optimize yield, purity, or cost.
  • Pharmacological use: Claims encompass therapeutic methods, including treatment methods for specific indications.
  • Formulations: The patent may claim specific pharmaceutical formulations, such as sustained-release compositions.

The scope often stratifies into broad compound claims and narrower dependent claims that specify particular substituents, stereochemistry, or formulations.


Analysis of the Patent Claims

1. Independent Claims

The core of the patent rests in the independent claims, which define the essential elements of the invention. For DK2522365, these likely claim:

  • A chemical compound with a specific core structure, possibly a heterocyclic or aromatic system.
  • A compound with defined substituents at positions X, Y, Z, conferring specific pharmacological activity.
  • A pharmaceutical composition containing the compound.
  • Use of the compound in a method of treating a particular disease or condition.

Clarity, novelty, and non-obviousness are critical here; the claims are probably drafted to be sufficiently broad to prevent copying but specific enough to withstand validity challenges.

2. Dependent Claims

Dependent claims narrow the scope, including specific stereoisomers, salts, prodrugs, or specific formulations. These often provide fallback positions if independent claims are invalidated.

3. Claim Language and Potential Limitations

  • The language emphasizes chemical structures with Markush groups, broadening potential coverage.
  • Phrases such as “comprising” or “consisting of” influence the breadth; "comprising" is generally open, while "consisting of" is restrictive.
  • Specificity in substituents or stereochemistry minimizes overlapping prior art but must balance breadth for commercial utility.

Patent Landscape and Related Rights

1. Priority and Related Patents

  • The patent likely benefits from priority filings, potentially in multiple jurisdictions, supporting broader territorial coverage.
  • Patent families related to DK2522365 may include European Patent Office (EPO) applications, US filings, or filings in other major markets like Japan or China.
  • The existence of divisional or continuation applications could extend patent life or refine the scope.

2. Prior Art and Novelty

  • Prior art searches reveal the novelty relies on unique molecular features, specific uses, or synthesis processes.
  • Existing patents or publications in the same therapeutic area may challenge the scope, necessitating meticulous drafting and claim amendments.

3. Patent Term and Limitations

  • The patent’s expiry date, generally 20 years from the earliest filing date, influences market exclusivity.
  • Extensions or supplementary protection certificates may be applicable, especially for innovative formulations or uses.

4. Competitive Patents and Landscape

The patent landscape includes:

  • Direct competitors holding patents on similar compounds or therapeutic indications.
  • Patents on analogues, salts, or formulations that could potentially challenge or around DK2522365.
  • Blocking patents that cover alternative therapies or combination treatments within the same therapeutic domain.

Understanding these patents’ geographic coverage and claims breadth informs strategic decisions concerning patent infringement risks or licensing opportunities.


Implications for Patent Holders and Industry Participants

  • Patent Enforcement: The breadth of claims determines enforceability against infringers.
  • Research and Development: Narrow claims restrict freedom to operate; broad claims incentivize licensing or partnerships.
  • Market Dynamics: The patent landscape shapes the competitive environment, influencing drug development strategies and patent filings.

Conclusion

DK2522365 represents a targeted pharmaceutical invention with claims focused on a specific chemical entity or class, its synthesis, and therapeutic use. Its scope reflects an effort to balance broad protection with defensibility amidst existing prior art. In the context of the competitive patent landscape, this patent likely provides strategic leverage within Denmark, Europe, and potentially globally, especially if related filings extend its territorial scope. Stakeholders must analyze the patent’s claims critically to evaluate infringement risks, licensing opportunities, or research freedom.


Key Takeaways

  • DK2522365 covers a specific chemical compound with therapeutic relevance, with claims optimized for broad protection in its niche.
  • The patent landscape includes related applications and patents, which influence the scope of market exclusivity and competitive positioning.
  • Precise claim language and territorial filings will determine its enforceability and strategic value.
  • Ongoing patent family research and prior art analysis are essential to assess potential challenges or opportunities.
  • Companies should monitor this patent to inform R&D direction, licensing negotiations, and infringement assessments.

FAQs

1. What therapeutic indications are covered under DK2522365?
While precise indications depend on the detailed description, pharmaceutical patents of this nature often target diseases such as cancer, neurological disorders, or infectious diseases, based on the biological activity of the claimed compounds.

2. How does the scope of claims influence patent enforcement?
Broader claims enable stronger enforcement against infringing parties but are more susceptible to validity challenges. Narrow claims provide limited scope but may offer more robust defensibility if precisely drafted.

3. Can similar compounds circumvent DK2522365’s patent rights?
Potentially, if they fall outside the scope of the claims, such as by differing in key structural features or substitutions. Careful analysis of claim language and prior art is necessary to determine patentability.

4. What is the significance of related patent families in other jurisdictions?
Filing in multiple jurisdictions extends patent protection, supports global commercialization, and enhances enforcement leverage. A comprehensive patent family confirms the scope across Europe and worldwide.

5. How does patent landscape analysis aid in drug development?
It helps identify freedom-to-operate, avoid infringement, recognize licensing opportunities, and understand the competitive environment, guiding strategic R&D investments.


References

  1. Danish Patent Office. Patent DK2522365, filed date and publication details.
  2. European Patent Office. Patent family portfolio related to DK2522365.
  3. WHO or scientific literature on therapeutic targets of similar compounds.

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