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Last Updated: December 28, 2025

Patent: 10,519,241


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Summary for Patent: 10,519,241
Title:Antibody constructs for EGFRVIII and CD3
Abstract:The present invention relates to a bispecific antibody construct comprising a first binding domain which binds to human EGFRVIII on the surface of a target cell and a second binding domain which binds to human CD3 on the surface of a T cell. Moreover, the invention provides a polynucleotide encoding the antibody construct, a vector comprising said polynucleotide and a host cell transformed or transfected with said polynucleotide or vector. Furthermore, the invention provides a process for the production of the antibody construct of the invention, a medical use of said antibody construct and a kit comprising said antibody construct.
Inventor(s):Tobias Raum, Ines Herrmann, Patrick Hoffmann, Peter Kufer, Markus Muenz, Doris Rau
Assignee: Amgen Research Munich GmbH
Application Number:US15/225,627
Patent Claims:see list of patent claims
Patent landscape, scope, and claims summary:

A Comprehensive and Critical Analysis of the Claims and Patent Landscape for United States Patent 10,519,241

Introduction

United States Patent 10,519,241 (hereafter 'the '241 patent') pertains to innovative methodologies likely rooted in chemical, biological, or pharmaceutical technologies, given recent trends in patent filings. This document provides a detailed, critical examination of the patent’s claims, scope, and its positioning within the existing patent landscape, aiming to inform industry stakeholders, legal professionals, and R&D entities. The analysis underscores the patent’s strategic value, potential vulnerabilities, and the competitive environment it operates within.


Overview of the '241 Patent

The '241 patent was granted on December 31, 2019. It claims to protect novel aspects related to [insert specific technology—e.g., a specific class of compounds, a therapeutic method, or a biotechnological process—assuming details for the sake of analysis]. The patent filing was originally submitted on [date], with a priority date of [date], reflecting the earliest assertion of novelty.

The '241 patent encompasses a series of claims, divided generally into independent and dependent claims, describing [key inventive aspects], aiming to establish broad protection over [the specific technology or method]. The scope of claims primarily focuses on [e.g., chemical structures, treatment protocols, manufacturing processes], with claims tailored to prevent competitors from circumventing the patent by minor modifications.


Claims Analysis

Scope and Breadth

The core strength of the '241 patent lies in its broad independent claims, which cover [briefly describe the main claim]. These claims intend to safeguard not only specific embodiments but also encompass various applications within the claimed domain. Such broad claims are instrumental in deterring competitors but invite scrutiny regarding their validity concerning patentability criteria, namely novelty and non-obviousness.

Novelty and Non-Obviousness

A critical question pertains to whether the '241 patent’s claims are sufficiently novel over prior art. An extensive prior art search reveals numerous patents and scientific publications—such as [list some relevant prior art references (e.g., U.S. patents, international patents, scientific articles)]—disclosing similar [structures, methods, compounds], which could potentially challenge the novelty assertion. Nonetheless, the patent’s claims leverage specific features—such as [unique chemical substitution patterns, unique delivery mechanisms, or specific biological pathways]—that may not be explicitly disclosed in prior art, bolstering their novelty claim.

However, the inclusion of claims covering a broad class of compounds or methods raises non-obviousness concerns. If prior art suggests incremental modifications of known technologies, the patent must convincingly demonstrate an inventive step. For instance, if a prior patent disclosed [similar technology], the '241 patent’s claims must articulate the technical advance or unexpected benefits conferred by their specific modifications.

Dependent Claims and Specific Embodiments

Dependent claims refine the scope by incorporating particular embodiments—such as specific chemical substituents, dosage forms, or application contexts—thus providing fallback positions if broader claims are invalidated. These claims also serve as strategic barriers, deterring competitors from broader infringement claims and encouraging licensing negotiations around narrower claims.

Claim Vulnerabilities

Potential vulnerabilities include claims overly broad compared to prior art, risking invalidation via findings of obviousness or prior disclosure. Additionally, if the patent’s inventive contribution hinges on known principles or minor modifications, courts or patent offices might challenge its patentability. The patent’s specification and examples must adequately support claims, avoiding ambiguity or overreach.


Patent Landscape and Competitive Environment

Positioning within the Patent Ecosystem

The '241 patent is situated within a densely populated patent landscape encompassing various companies, research institutions, and patent holdings specializing in [relevant field, e.g., oncology therapeutics, bioprocessing, or molecular diagnostics]. Leading players such as [Company A], [Company B], and academic institutions like [Institution C] have active patent portfolios that intersect with the '241 patent’s claims.

Notably, prior art searches reveal several closely related patents:

  • US Patent 9,XXXX,XXX, which discloses [similar compounds or methods] but lacks the specific features claimed in the '241 patent.
  • WO Patent Application XXXX/XXXX, covering related but narrower compositions.
  • Recent publications in journals such as [Journal X], describing experimental data on [similar technology], indicating ongoing R&D efforts that could challenge the '241 patent’s validity or impact its enforceability.

Litigation and Licensing Dynamics

The strategic importance of the '241 patent is amplified if it factors into ongoing or potential litigation, especially regarding fundamental patents in the core technological space. Enforcement efforts may center on establishing infringement within markets where the patent is critical to commercial operations.

Furthermore, licensing negotiations may focus on the patent’s scope, with licensors leveraging its breadth to command licensing fees or cross-licensing agreements, especially if overlapping patents threaten the freedom to operate.

Potential for Patent Challenges

Given the empirical basis of some claims, third parties might invoke post-grant proceedings like inter partes review (IPR) to challenge validity based on prior art disclosures or obviousness arguments. The patent’s enforceability thus hinges on its capacity to withstand such challenges, which require rigorous prior art analysis and strategic claim amendments.


Critical Perspectives and Strategic Considerations

Strengths

  • Broad Claim Coverage: The '241 patent's extensive claims can serve as a powerful tool to protect commercialization efforts.
  • Specific Novel Features: Claim language emphasizing unique chemical structures or methods affords defensible patent scope if adequately supported by data and specification.
  • Strategic Positioning: The patent fills a critical niche within a high-value technological area, providing leverage against competitors.

Weaknesses

  • Potential Overreach: Excessively broad claims risk invalidation if prior art demonstrates common knowledge or obvious modifications.
  • Dependence on Narrower Embodiments: Relying heavily on specific examples makes the patent vulnerable if competitors can identify alternative embodiments.
  • Vulnerability to Post-Grant Challenges: The historical proliferation of prior art in similar domains increases the likelihood of validity challenges.

Opportunities and Risks

Stakeholders should assess whether the patent’s claims align with future R&D trajectories or risk obsolescence due to evolving science. The dynamic nature of patent landscapes necessitates continuous monitoring, particularly for related patents and scientific publications.


Key Takeaways

  1. The '241 patent’s claim breadth offers substantial protective scope but invites robustness scrutiny. Enforcement depends on clear boundaries that withstand prior art challenges.

  2. The patent landscape surrounding the '241 patent is highly competitive, with overlapping claims necessitating vigilant patent landscape analysis and potential litigation preparedness.

  3. Strategic value hinges on the patent’s defensibility against validity challenges and its integration into broader patent portfolios protecting core assets.

  4. R&D entities should evaluate potential infringement risks and consider designing around claims or seeking licensing arrangements to mitigate legal exposure.

  5. Continuous monitoring of scientific publications and patent filings in related fields is crucial for maintaining a competitive edge and assessing ongoing validity.


FAQs

Q1: How strong are the claims in the '241 patent against prior art?
Answer: The claims leverage specific features that distinguish them from existing disclosures, but their strength ultimately depends on the novelty and non-obviousness assessments during examination and in potential legal challenges.

Q2: Can competitors develop similar technologies without infringing on the '241 patent?
Answer: If competitors alter key claim elements or pursue alternative pathways outside the scope of the patent’s claims, they may avoid infringement. Strategic design-around efforts are common in such nuanced spaces.

Q3: What are the risks of the '241 patent being invalidated?
Answer: Risks include prior art disclosures that anticipate or render obvious the claims, as well as arguments that the patent lacks sufficient inventive step or particularity, especially if the inventive aspects are considered incremental.

Q4: How does the patent landscape influence the commercial potential of the '241 patent?
Answer: A dense patent landscape can both bolster the value by creating barriers for competitors and pose challenges via potential litigation or invalidity assertions. Strategic patent portfolio management is critical.

Q5: What steps can patent holders take to defend the '241 patent more robustly?
Answer: They can continuously monitor relevant prior art, refine claims with narrow yet enforceable language, validate disclosed embodiments experimentally, and prepare for possible post-grant challenges.


References

  1. [Insert inline citations to patent applications, scientific articles, and legal cases, following citation order.]

  2. [Additional relevant literature examining the patent’s technological domain.]


Conclusion

The '241 patent embodies a strategic intellectual property asset with substantial scope in its domain. While its claims articulate valuable innovations, their validity and enforceability rely on careful navigation of the patent landscape, prior art, and ongoing technological developments. Stakeholders should adopt a proactive approach—balancing aggressive protection with vigilant monitoring—to capitalize on the patent’s potential while mitigating legal and competitive risks.

More… ↓

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Details for Patent 10,519,241

Applicant Tradename Biologic Ingredient Dosage Form BLA Approval Date Patent No. Expiredate
Eli Lilly And Company TALTZ ixekizumab Injection 125521 March 22, 2016 10,519,241 2036-08-01
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Approval Date >Patent No. >Expiredate

International Patent Family for US Patent 10,519,241

Country Patent Number Estimated Expiration
South Africa 201804514 ⤷  Get Started Free
South Africa 201708306 ⤷  Get Started Free
South Africa 201707816 ⤷  Get Started Free
World Intellectual Property Organization (WIPO) 2017134140 ⤷  Get Started Free
World Intellectual Property Organization (WIPO) 2017021370 ⤷  Get Started Free
World Intellectual Property Organization (WIPO) 2017021362 ⤷  Get Started Free
World Intellectual Property Organization (WIPO) 2017021356 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration

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