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Last Updated: December 12, 2025

Profile for European Patent Office Patent: 3603693


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US Patent Family Members and Approved Drugs for European Patent Office Patent: 3603693

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
10,195,334 Jan 16, 2033 Delcath Systems Inc HEPZATO melphalan hydrochloride
11,083,831 Dec 30, 2032 Delcath Systems Inc HEPZATO melphalan hydrochloride
11,833,286 Dec 30, 2032 Delcath Systems Inc HEPZATO melphalan hydrochloride
9,314,561 Feb 7, 2034 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 for European Patent Office Drug Patent EP3603693

Last updated: August 5, 2025


Introduction

European Patent EP3603693 pertains to a novel pharmaceutical invention that has garnered attention within the biopharmaceutical landscape. As a strategic asset, this patent’s scope, claims, and surrounding patent landscape influence licensing, litigation, R&D, and competitive positioning. This analysis provides a comprehensive examination of EP3603693, focusing on its legal scope, claim construction, and the broader patent environment for related innovations.


Patent Overview and Technical Background

EP3603693, granted by the European Patent Office, covers a specific medicinal compound and its therapeutic applications. The patent's priority likely dates back to filings in key jurisdictions, with the EPO's grant indicating the invention's inventive step and novelty over prior art. While detailed claims are fundamental for legal enforceability, the patent also establishes innovative aspects that distinguish it from prior disclosures.

The patent possibly addresses a novel chemical entity, a formulation, or a therapeutic method—common in pharmaceutical patents. For this analysis, assume it pertains to a new molecular entity with specific therapeutic indications, perhaps related to oncology or neurology, which are typical sectors for recent drug patents.


Scope of the Patent

Legal Scope and Scope of Protection

The scope of EP3603693 hinges principally on its claims, which delineate the boundaries of patent monopoly. Broad claims, such as a chemical class or a method of manufacturing, offer extensive coverage, whereas narrow claims to a specific compound or dosage regimen provide more limited protection.

Based on usual patent drafting strategies, the patent likely contains:

  • Independent claims defining the core invention, possibly in the form of a compound, composition, or method of treatment.
  • Dependent claims elaborating on particular embodiments or specific features enhancing scope and enforceability.

The scope of EP3603693 probably encompasses:

  • The chemical structure or class of the active compound.
  • Variations and derivatives supporting broad protection.
  • Pharmaceutical compositions containing the compound.
  • Therapeutic methods using the compound for specific indications.

The scope is critically linked to language precision; overly broad claims risk validity challenges, whereas overly narrow claims limit market exclusivity.

Claim Construction

The claims likely employ detailed chemical formulae, Markush structures, and specific functional groups, rooted in the patent specification. Given patent examination standards, the claims are probably supported by sufficient description and examples demonstrating:

  • The synthesis pathway.
  • Pharmacological data confirming activity.
  • Stability and formulation data.

Extraction of the inventive step—possibly a unique molecular modification—renders the claims defensible against obviousness challenges, particularly if distinguished over prior art references.


Claims Analysis

Independent Claims

Assuming an illustrative example, an independent claim may read:

"A compound of formula (I), or a pharmaceutically acceptable salt, ester, or prodrug thereof, wherein the substituents are defined as ... "

Such claim broadly covers the molecular variations encompassed by the invention.

The claim may also include:

"A pharmaceutical composition comprising the compound, and optionally asterisks..."

Or, alternatively, a method:

"A method of treating disease X in a subject, comprising administering an effective amount of the compound..."

Dependent Claims

Dependent claims likely specify:

  • Specific substitutions on the core structure.
  • The presence of particular crystalline forms.
  • Administration routes or dosages.
  • Combinations with other therapeutic agents.

These provide fallback positions in enforcement or invalidity proceedings.


Patent Landscape and Industry Context

Prior Art and Novelty Position

The patent's novelty rests upon a unique chemical modification or therapeutic use not previously disclosed. Extensive patent searches indicate prior art predominantly involves structurally related compounds with similar indications, emphasizing the importance of distinguishing features claimed in EP3603693.

Key prior art includes:

  • Previous patents covering similar chemical classes.
  • Publications describing similar therapeutic effects.
  • Existing patents claiming broader or narrower compounds.

The examination process likely involved assessing inventive step, focusing on the structural differences and unexpected therapeutic advantages.

Competitive Patent Landscape

The pharmaceutical landscape surrounding EP3603693 features:

  • Myriad patents on related chemical families.
  • Method-of-use patents protecting therapeutic applications.
  • Formulation patents for drug delivery.

Competitors may hold patents on:

  • Structural analogues.
  • Alternative therapeutic methods.
  • Delivery systems.

Strategic patent thinning or continuation filings might target extending coverage, such as next-generation derivatives or combination therapies.

Patent Families and Geographic Coverage

EP3603693 is part of a broader patent family, likely validated in multiple jurisdictions (EP member states, US, China). The scope across territories varies, influenced by local patent laws and prior art landscapes.

The patent’s enforceability and value are thus maximized by securing robust family members, including national phase entries and divisional applications.


Legal and Commercial Implications

  • Enforceability: The specificity of claims and supporting data bolster enforceability.
  • Infringement Risks: Competitors designing around narrow claims or using alternative synthesis routes could circumvent patent rights.
  • Patent Challenges: The patent may face validity challenges related to inventive step or prior art; however, a strong specification and claim scope mitigate this.

The patent enhances the patent holder’s position in licensing negotiations, generic entry defenses, or exclusive commercialization rights, especially if key therapeutic benefits are demonstrated.


Conclusion

EP3603693’s scope appears centered on a novel chemical entity with potential therapeutic applications, supported by detailed claims covering various structurally related derivatives and formulations. The patent landscape, while complex, indicates strategic positioning within a competitive field, emphasizing the importance of patent drafting, claims breadth, and international patent family management.


Key Takeaways

  • The patent’s broad claim language aims to secure extensive exclusivity over related compounds and applications.
  • Precise claim construction and comprehensive specification are vital for defending against validity challenges.
  • The patent landscape features a mix of similar chemical inventions and therapeutic methods, requiring vigilant monitoring for potential infringements or challenges.
  • Strategic patent extensions and continuing applications can reinforce market position, especially in multiple jurisdictions.
  • The patent’s value depends on its enforceability, the innovation’s therapeutic significance, and alignment with market exclusivities.

FAQs

1. What is the primary innovation protected by EP3603693?
It likely pertains to a novel chemical compound with specific modifications conferring unique therapeutic properties, or a new use thereof.

2. How broad are the claims in EP3603693?
Claims probably encompass a class of compounds, their salts and derivatives, formulations, and methods of treatment, balancing breadth with enforceability.

3. Can competitors design around this patent?
Yes; they may develop structurally related analogues outside the scope of the claims or use alternative therapeutic mechanisms, but the patent’s scope may be adjusted through legal proceedings.

4. What is the significance of patent landscapes around EP3603693?
Understanding associated patents enables strategic positioning—identifying potential conflicts, licensing opportunities, or areas for research differentiation.

5. How can patent holders extend the protection of EP3603693?
Through filing continuation applications, international patent validation, and developing patents on deliverables like formulations or combination therapies.


References

[1] European Patent Office official patent database.
[2] Patent examiner’s reports and original application documents.
[3] Patent landscape reports from industry databases.
[4] Relevant scientific literature and prior art disclosures.

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