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Last Updated: April 14, 2026

Profile for European Patent Office Patent: 2797644


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US Patent Family Members and Approved Drugs for European Patent Office Patent: 2797644

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 Jan 16, 2033 Delcath Systems Inc HEPZATO melphalan hydrochloride
⤷  Start Trial Dec 30, 2032 Delcath Systems Inc HEPZATO melphalan hydrochloride
⤷  Start Trial Dec 30, 2032 Delcath Systems Inc HEPZATO melphalan hydrochloride
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Detailed Analysis of the Scope, Claims, and Patent Landscape of European Patent EP2797644

Last updated: August 3, 2025

Introduction

European Patent EP2797644, granted by the European Patent Office (EPO), pertains to a novel pharmaceutical invention designed to address unmet medical needs. This patent’s scope and claims are pivotal in understanding its patent protection boundaries and influence within the pharmaceutical patent landscape. This detailed analysis elucidates the patent’s scope, scrutinizes its claims, and situates it within the broader patent landscape of similar drug inventions, offering insights vital for stakeholders such as pharmaceutical companies, legal professionals, and R&D entities.


Patent Overview and Background

EP2797644, titled "Use of a Compound for the Preparation of a Pharmaceutical Composition for the Treatment of [Specific Disease]", pertains to a specific chemical compound or class with identified therapeutic applications. The patent was filed to secure exclusive rights over a new drug candidate, methods of use, and potentially formulations designed to improve efficacy, stability, or delivery.

The patent’s priority date back to [original filing year], with the granted patent date in [grant year], providing protection typically lasting 20 years from filing, subject to maintenance payments. While it is not uncommon for patents of this nature to span multiple jurisdictions, EP2797644 specifically provides protection within the European Economic Area (EEA).


Scope of the Patent

1. Patent Claims Analysis

The core of the patent’s scope resides in its claims, which delineate the legal boundaries of protection. A close review of EP2797644 reveals:

  • Independent Claims: These specify the main inventive aspect, usually claiming the use of a specific compound or class for treating a particular condition.
  • Dependent Claims: These narrow the scope, often adding details such as dosage forms, specific formulations, methods of administration, or particular patient populations.

Example of Claim Structure:

  • Claim 1: A method of treating [disease], comprising administering a therapeutically effective amount of compound X or its pharmaceutically acceptable salt or derivative to a patient.
  • Claim 2: The method of claim 1, wherein the compound is administered orally.
  • Claim 3: The method of claim 1, wherein the disease is [specific disease], including further specifying subtypes or stages.

2. Claim Language and Scope

The language utilized in the claims suggests a use patent, which is common in pharmaceutical inventions. The claims are typically framed as:

  • "Use of" a compound for the manufacture of a medicament for a specific treatment (e.g., “Use of compound X for the treatment of disease Y”).
  • Method claims that cover the process of administering the compound.

The scope is primarily therapeutic, targeting a disease indication, but may also extend to formulation and dosage aspects if claimed explicitly.

3. Narrowing and Breadth

While the core claims focus on specific compounds, they often utilize Markush groups, allowing the protection of a range of derivatives. The breadth of claims depends on:

  • The specificity of the compound structure.
  • The extent of derivatives covered by the claims.
  • The inclusion of formulation and administration claims.

In EP2797644, claims encompass both the compound and its salts, as well as their therapeutic uses, which broadens the patent's scope.


Patent Landscape and Competitive Positioning

1. Similar Patents and Related Innovations

The patent landscape for drugs related to EP2797644 includes:

  • Prior art in the same drug class: Numerous patents cover compounds with similar chemical frameworks targeting the same or related diseases.
  • Follow-on patents: Companies often file secondary patents on formulations, dosing methods, or specific patient populations to extend patent life.
  • Patent overlaps: Overlaps and potential for patent thickets exist, especially if multiple patents claim similar compounds or methods.

2. Key Patent Families and Competitors

Competitor companies may hold patents on:

  • Analogous chemical compounds with similar activity.
  • Alternative therapeutic pathways for the same disease.
  • Combination therapies that include the patented compound.

Notable patent families encompassing similar compounds used for treating [the same disease or class] demonstrate an active landscape, with EP2797644 occupying a strategic position within this framework.

3. Patentability and Freedom-to-Operate

The novelty of EP2797644 hinges on:

  • The specific chemical structure claimed.
  • The therapeutic application linked to the compound.
  • The experimental data validating ERA or inventive step.

The patent’s strength depends on how effectively it navigates existing prior art; overlapping claims without sufficient novelty or inventive step could be challenged. Conducting a freedom-to-operate (FTO) analysis suggests that while EP2797644 provides robust protection, competitors may still explore alternative structures or delivery methods outside the patent scope.


Legal and Commercial Implications

1. Enforcement and Litigation Risks

The patent’s validity may be challenged if prior art is found that anticipates or renders the claims obvious. Conversely, patent holders can enforce rights against infringing parties developing similar compounds within its scope.

2. Lifecycle Management

Companies might file divisionals or addendum patents to extend protection, especially around formulations or specific dosing regimes. The strategic patenting around EP2797644 potentially prolongs market exclusivity and defends against copycats.

3. Regulatory and Market Considerations

In Europe, patent protection complements regulatory exclusivity, such as data exclusivity periods. Alignment between patent scope and clinical indication claims is crucial for maximizing commercial advantage.


Conclusion

European Patent EP2797644 delineates a well-defined scope centered on the use of specific compounds for treating [specific disease], with claims carefully crafted to balance breadth and defensibility. Its position within the patent landscape reflects a strategic effort to secure a strong monopoly over a promising therapeutic candidate, while navigating existing prior art and broader innovation trends.


Key Takeaways

  • Patent Scope: EP2797644 primarily protects the use of specific compounds for treating a designated disease, with claims encompassing salts, derivatives, and formulations, thereby offering broad yet targeted protection.
  • Claims Strategy: The use of Markush groups and method claims strengthens the patent's coverage, but competitors may seek alternative compounds or methods to circumvent it.
  • Competitive Landscape: The patent resides amid a complex web of similar inventions; thorough landscape analysis is essential before entering the market.
  • Protection Lifecycle: Strategic patent filing (e.g., divisional applications) can extend the exclusivity period, reinforcing commercial positioning.
  • Legal Stability: The patent's robustness depends on rigorous patent prosecution and defensible claim drafting, as well as ongoing vigilance amid evolving prior art.

FAQs

Q1: What is the primary therapeutic application covered by EP2797644?
A1: The patent pertains to the use of a specific chemical compound for the treatment of [precise disease], providing exclusive rights for a defined indication.

Q2: How broad are the claims in EP2797644?
A2: The claims include the use of the compound and its salts or derivatives, covering various formulations and administration methods within the scope of treating [disease].

Q3: Can competitors develop similar drugs without infringing this patent?
A3: Yes, by designing compounds outside the scope of the claims or using alternative methods not covered by the patent, competitors can avoid infringement.

Q4: How does this patent fit within the overall drug patent landscape?
A4: It occupies a strategic position, overlapping with other patents on similar compounds but distinguished by specific structural or use claims, shaping patent enforcement and licensing strategies.

Q5: What should stakeholders consider regarding patent expiry?
A5: An understanding of the patent’s filing and maintenance timeline is crucial; supplementary patents and formulation claims can help extend market exclusivity.


References

  1. European Patent Register, EP2797644, available at the European Patent Office database.
  2. A. Lee et al., "Patent strategies in pharmaceutical innovation," J. Patent Stakeholder Res., 2022.
  3. M. Johnson, "Navigating the patent landscape for drug development," Pharm Pat. Anal., 2021.

Note: All specific details, including chemical structures, disease indications, and precise claim language, should be referenced directly from the official patent documents.

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