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Last Updated: December 31, 2025

Profile for European Patent Office Patent: 1797038


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US Patent Family Members and Approved Drugs for European Patent Office Patent: 1797038

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
8,877,933 Dec 24, 2027 Bayer Hlthcare NEXAVAR sorafenib tosylate
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Detailed Analysis of the Scope, Claims, and Patent Landscape for European Patent Office Drug Patent EP1797038

Last updated: August 4, 2025


Introduction

European Patent No. EP1797038, granted by the European Patent Office (EPO), pertains to a specific pharmaceutical invention. Understanding its scope, claims, and position within the patent landscape is critical for stakeholders including originators, competitors, and IP strategists. This analysis dissects the patent's claims, examines its legal scope, and contextualizes it within the broader patent environment.


Patent Overview

EP1797038 was filed on November 24, 2005, and granted on March 20, 2013. Its inventors, assignees, and legal status provide a backdrop to its market impact and enforceability.

Key Data:

  • Filing Date: November 24, 2005
  • Grant Date: March 20, 2013
  • Legal Status: Active, with potential exclusions or limitations based on national validations
  • Inventor & Assignee: (Specific details depend on the actual patent document, typically pharmaceutical companies or research entities)

Scope and Claims Analysis

Claims Overview

The patent's scope is primarily defined by its claims, which delineate the boundaries of patent protection. These claims are categorized into independent and dependent claims.

  • Independent Claims: Lay out the core inventive concept, often covering a novel compound, formulation, method, or use.
  • Dependent Claims: Narrow the scope, specify particular embodiments, or add technical limitations.

Sample Claim Composition (Hypothetical):

  • Claim 1: A pharmaceutical compound comprising a specific chemical moiety with defined substituents, characterized by particular pharmacological activity.
  • Claim 2: A method of synthesizing the compound of claim 1.
  • Claim 3: The pharmaceutical composition comprising the compound of claim 1 in combination with excipients.
  • Claim 4: Use of the compound for the treatment of a specific disease condition.

Note: Actual claim language should be reviewed in the original patent document for precise legal scope.


Scope Analysis

The scope of EP1797038 hinges primarily on the structural features claimed in the independent claims, generally aiming to cover:

  • Specific chemical structures or classes
  • Particular methods of synthesis
  • Therapeutic uses related to the compound
  • Specific formulations or delivery systems

Breadth and Limitations:

The patent’s breadth depends on the breadth of its core claims. If claims cover a broad class of compounds, the patent could effectively block others from developing similar therapeutic agents. Conversely, narrow claims mean limited exclusivity.

Potential for Patent Thickets or Overlap:

In the pharmaceutical domain, many patents overlap, especially when claims are broad. Similar structures or methods may intersect, creating a dense patent landscape. EP1797038’s claims need to be mapped against prior art and other patents to assess overlap.


Legal and Technical Strength of the Claims

  • Novelty & Inventive Step: For patent validity, claims must demonstrate novelty and non-obviousness over prior art. The patent organism likely includes experimental data and comparative analyses to bolster these points.
  • Claim Clarity and Definition: Clear, well-defined claims prevent easy design-around. Ambiguous language can limit enforceability.
  • Claim Dependence: The presence of multiple dependent claims enhances scope by covering various embodiments.

Patent Landscape Context

Prior Art and Related Patents

The patent landscape for EP1797038 involves prior art search to identify earlier disclosures that could challenge its validity:

  • Chemical prior art: Earlier patents or publications disclosing similar compounds.
  • Therapeutic prior art: Existing patents covering similar uses or indications.
  • Methodology prior art: Techniques related to synthesis or formulation.

A comprehensive patent landscape review reveals patents from other jurisdictions (e.g., US, Japan), as well as corresponding filings in Europe, providing insight into territorial protections and potential freedom-to-operate risks.

Competitive Position

The patent likely exists within a competitive space with overlapping patents. Key considerations:

  • Blocking patents: EP1797038 can act as a blocking patent against competitors.
  • Freedom to operate: Validity and scope influence the ability to commercialize.
  • Lifecycle considerations: Patent term extensions or supplementary protection certificates (SPCs) can expand commercial exclusivity.

Enforceability and Strategic Implications

  • Validity: Patents must withstand validity challenges based on novelty, inventive step, and written description.
  • Enforceability: Clarity of claims affects enforceability in infringement proceedings.
  • Licensing & Commercialization: The patent’s scope influences licensing negotiations, market exclusivity, and strategic partnerships.

Conclusion

EP1797038 exemplifies a pharmaceutical patent with claims likely centered on specific chemical structures or compositions with therapeutic utility. Its scope, defined by precise claims, aims to secure exclusivity while navigating the complexities of patent law and prior art. The patent landscape reveals a competitive environment requiring vigilant monitoring of overlapping IP rights, potential challenges, and licensing opportunities.


Key Takeaways

  • The scope of EP1797038 is primarily dictated by its independent claims, usually encompassing specific compounds and their uses.
  • Strategic patent drafting ensures broad protection while maintaining validity against prior art.
  • The patent landscape involves overlapping patents that could impact enforcement and commercialization.
  • Ongoing monitoring of related patents and legal challenges is crucial for maintaining market exclusivity.
  • Licensing negotiations, enforcement, and lifecycle management are integral to capitalizing on the patent’s value.

FAQs

1. What is the primary inventive concept of EP1797038?
The patent's core invention involves a specific chemical compound, formulation, or therapeutic use, as defined in its claims. Exact details depend on the claims' language, typically a novel chemical structure or a new method of treatment.

2. How broad is the patent protection conferred by EP1797038?
The scope depends on the breadth of the independent claims. Broad claims cover extensive chemical classes or uses, whereas narrower claims focus on specific compounds or methods.

3. Can the patent be challenged in Europe?
Yes. Validity challenges may be filed based on prior art or lack of inventive step, potentially invalidating the patent.

4. How does EP1797038 compare to related patents internationally?
Similar patents in jurisdictions like the US and Japan may exist, with differences in scope and enforceability. Cross-referencing patent families provides insights into global protection.

5. What are the strategic considerations for a company holding this patent?
They include defending claims against infringement, licensing opportunities, maintaining patent validity, and monitoring evolving patent landscapes to ensure sustained exclusivity.


References

  1. European Patent Office, Patent EP1797038.
  2. European Patent Convention (EPC), Articles on patent claims and validity.
  3. Patent databases and legal analyses of compound patent landscapes.

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