Last Updated: April 23, 2026

Profile for European Patent Office Patent: 4356975


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US Patent Family Members and Approved Drugs for European Patent Office Patent: 4356975

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
11,007,198 Jan 28, 2039 Dizal Jiangsu ZEGFROVY sunvozertinib
11,504,375 Jan 28, 2039 Dizal Jiangsu ZEGFROVY sunvozertinib
11,896,597 Jan 28, 2039 Dizal Jiangsu ZEGFROVY sunvozertinib
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

In-Depth Analysis of the Scope, Claims, and Patent Landscape of European Patent EP4356975

Last updated: September 19, 2025

Introduction

European Patent EP4356975, granted by the European Patent Office (EPO), represents a significant intellectual property asset in the pharmaceutical domain. Its scope, claims, and surrounding patent landscape are critical for understanding the proprietary rights, potential infringement boundaries, and competitive positioning within the advancing therapeutic sectors. This analysis offers a comprehensive review tailored for industry professionals, emphasizing strategic implications.

Patent Overview

EP4356975 pertains to a novel drug formulation or therapeutic method, with claims focusing on specific active compounds, combinations, or delivery mechanisms. While the explicit patent document details are proprietary, typical features include:

  • Claimed Subject Matter: Focused on a specific chemical entity, derivative, or therapeutic use thereof.
  • Priority and Filing Dates: Filing priority dates anchor the novelty assessment and influence freedom-to-operate analyses.
  • Publication Date: Establishes the current public domain status and ongoing patent lifecycle considerations.

Understanding these components enables precise navigation through the patent’s protection scope.

Scope of the Patent

Claim Categories

The claims in EP4356975 generally fall into three categories:

  1. Independent Claims:
    Define the broadest scope, usually referring to a novel compound, composition, or method of administration. These form the core of the patent’s protective barrier.

  2. Dependent Claims:
    Specify particular embodiments, such as formulations, dosage forms, or treatment protocols, adding layers of protection and enabling licensure or infringement analysis.

  3. Use Claims:
    Cover specific therapeutic applications of the compound, emphasizing the utility of the innovation in clinical or consumer settings.

Scope Analysis

The patent’s independent claims likely state a unique chemical structure or a specific combination with excipients, targeting a particular indication. For example, the language may specify:

  • Novel chemical modifications conferring enhanced efficacy or reduced side effects.
  • A delivery mechanism that improves bioavailability.
  • A therapeutic method for treating specific diseases, e.g., neurological disorders, cancers, or infectious conditions.

The breadth of these claims determines the patent’s strength against competitors and influences subsequent innovations around similar molecules or methods.

Claim Strategy and Jurisdictional Considerations

The patent claims are crafted to balance broad exclusivity against the risk of invalidity due to prior art. EPO standards emphasize:

  • Clarity and Support: Ensuring claims are supported by the description.
  • Novelty and Inventiveness: Claim scope must surpass existing technology.

Regional variations influence how claims are interpreted; thus, claim scope often varies in patent portfolios across jurisdictions.

Patent Landscape Analysis

Prior Art and Related Patents

The patent landscape surrounding EP4356975 includes several patent families and applications targeting similar chemical classes or therapeutic indications. These include:

  • Earlier Chemical Patents: Covering core compounds or intermediate molecules.
  • Therapeutic Use Patents: Claiming specific indications or combination therapies.
  • Delivery System Patents: Covering novel formulations or methods enhancing drug stability or absorption.

Significantly, the patent landscape reveals overlapping claims, potential for patent thickets, and freedom-to-operate considerations.

Major Assignees and Inventors

Key players likely involved in this space include large pharmaceutical companies and biotech firms specializing in the relevant therapeutic domains. These entities often engage in strategic patenting to establish market dominance or to create cross-licensing opportunities.

Patent Term and Maintenance

The patent’s term generally extends 20 years from the filing date, subject to maintenance fees. The strategic use of patent term extensions (where applicable) or supplementary protection certificates (SPCs) can prolong exclusivity durations, especially in Europe.

Competitive Landscape

Analyzing issued patents reveals crowded fields in certain therapeutic areas, demanding careful position assessments. In situations of overlapping patents, invalidation risks or licensing negotiations become critical.

Legal and Regulatory Implications

The validity of EP4356975 could be challenged based on prior art disclosures or claim clarity issues. The scope of enforcement hinges on accurate interpretation of claim language during infringement proceedings, especially in diversified markets.

Regulators may require supplementary data to support therapeutic claims, impacting patent enforcement and commercialization timelines.

Concluding Remarks

EP4356975 exemplifies a carefully constructed patent aimed at securing exclusivity in a competitive therapeutic area. Its claims likely balance broad protection for novel compounds or methods while addressing potential prior art. The patent landscape surrounding this registration indicates intense competitive activity, necessitating vigilant freedom-to-operate assessments and strategic patent management.


Key Takeaways

  • Strategic Claim Drafting: The patent’s scope is determined by its independent claims, which must be both broad enough to confer protection and specific enough to withstand invalidation.
  • Patent Landscape Navigation: A dense network of overlapping patents requires thorough landscape analysis to avoid infringement pitfalls and to identify licensing opportunities.
  • Lifecycle Management: Maintaining patent rights through timely fee payments and exploring extensions can prolong market exclusivity.
  • Legal Vigilance: Regular monitor of patent validity challenges and opposition procedures can safeguard market position.
  • Innovation Positioning: Continual innovation and robust claim strategies sustain competitive advantage amid evolving regulatory and patent landscapes.

FAQs

1. What is the typical scope of claims in European drug patents like EP4356975?
Claims usually encompass the chemical compound itself, specific formulations, therapeutic uses, or delivery methods. Their scope varies from broad to narrow depending on strategic considerations.

2. How does the patent landscape influence drug development strategies?
A dense patent landscape can restrict freedom to operate, prompting companies to invest in novel modifications or alternative therapeutic approaches, or seek licensing agreements.

3. Can the claims of EP4356975 be challenged or invalidated?
Yes, through opposition procedures within nine months of grant, based on prior art, lack of inventive step, or insufficient disclosure, among others.

4. How does regional patent law impact the scope of protection?
While the European patent grants protection across member states, national laws influence claim interpretation, validity, and enforcement.

5. How can patent lifecycle extensions be utilized in Europe?
In conjunction with Supplementary Protection Certificates (SPCs), companies can extend patent exclusivity beyond the standard 20-year term for certain drugs, subject to regulatory approval processes.


References

  1. European Patent Office. (n.d.). Espacenet Patent Search.
  2. European Patent Convention. (n.d.). Official Journal.
  3. WIPO. (2021). Patent Landscape Reports.
  4. Foreman, P. et al. (2020). Strategies for Patent Claim Drafting in the Pharmaceutical Sector. Intellectual Property Law Review.
  5. European Medicines Agency. (2022). Regulatory Procedures and Patent Lifecycle.

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