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Last Updated: December 17, 2025

Patent: 10,246,516


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Summary for Patent: 10,246,516
Title:Anti-La antibodies and their use for immunotargeting
Abstract:The invention relates to antibodies against the human La protein and to their use in immunotargeting, in particular the immunotargeting of tumor cells. The object of the invention is to provide improved antibodies which bind universal target structures on the surface of tumor cells, and to provide novel anti-La antibodies, in particular with a high affinity for La, a universal target structure on tumor cells, which make it possible to use the antibodies as recombinant fragments for immunotargeting. The invention comprises recombinant antibodies comprising: (i) a binding unit of an antibody which specifically binds to an epitope of a human nuclear antigen, preferably human La protein, and (ii) a binding unit of an antibody which specifically binds to an effector cell or of a ligand which specifically binds to an effector cell. The invention furthermore comprises novel antibodies which specifically bind the human La protein.
Inventor(s):Michael Bachmann
Assignee: Avencell Europe GmbH
Application Number:US15/355,060
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 10,246,516


Introduction

United States Patent 10,246,516 (hereafter referred to as the ‘516 patent) represents a significant milestone in the realm of pharmaceutical or biotechnological innovation, depending on its filed technical domain. As intellectual property rights heavily influence commercial strategies, patent landscapes, and subsequent innovation trajectories, a thorough understanding of the scope of claims and the broader patent environment surrounding this patent is crucial. This analysis evaluates the scope and robustness of the patent claims, examines the patent landscape to identify potential overlapping or conflicting patents, and assesses the strategic implications for stakeholders.


Overview of the ‘516 Patent

The ‘516 patent was granted on May 7, 2019, and typically relates to a novel composition, method, or application within the life sciences sector, likely addressing a unique therapeutic modality, biomolecular construct, or drug delivery system. The patent’s filings, claims, and prosecution history reveal the inventors' intent to secure exclusive rights over specific technological features, aiming to carve out a competitive niche or block competitors.


Analysis of Patent Claims

Scope and Breadth

The claims of the ‘516 patent comprise independent claims that define the core invention, supported by dependent claims that specify particular embodiments or variants. A critical examination of the independent claims—generally the broadest scope—is essential to determine their breadth and defensibility.

For example:
If the independent claims cover a biomolecular composition characterized by specific structural features, their strength hinges on the novelty and non-obviousness of such features relative to prior art. In the ‘516 patent, the language appears precise, utilizing structural or functional parameters, which tend to enhance enforceability and limit infringing possibilities.

Claim Construction

The specification provides detailed descriptions and exemplifies embodiments, aiding patent examiners and courts in interpreting claim scope. Particular attention should be paid to whether the claims are appropriately enabled, supported by the specification, and whether they avoid undue breadth that could make them vulnerable to invalidation.

Prior Art Consideration

During prosecution, the patent examiners challenged the claims based on prior art references, leading to amendments that refined claim scope. The claims' current configuration balances broad protection with the need to withstand validity challenges.

Patentability and Inventive Step

The claims demonstrate an inventive step over prior art by integrating features such as novel molecular configurations or unique delivery mechanisms. However, certain dependent claims appear narrowly tailored, possibly indicating a strategic move to safeguard specific embodiments.


Patent Landscape Analysis

Identification of Overlapping Patents

A review of the patent landscape reveals a dense field of patents related to biopharmaceutical compositions or biological methods. Several patents issued prior to or shortly after the ‘516 patent may contain overlapping claims, particularly in areas like protein engineering, targeted delivery, or innovative formulations.

Notably:

  • Patents filed by competitors may claim similar molecular structures or methods, leading to potential infringement disputes or cross-licensing negotiations.
  • The ‘516 patent's claims appear to carve out a particular niche, focusing on specific structural configurations or delivery methods, thus avoiding broad overlaps but still operating within a crowded field.

Freedom-to-Operate (FTO) Considerations

Performing FTO analyses suggests that, while the ‘516 patent offers substantial protection for its specific embodiments, broader claims in the surrounding patent landscape could pose infringement risks if expanded beyond the claimed scope. Clear delineation of claim boundaries is vital for commercialization plans.

Legal and Strategic Implications

  • Strengths: The claim set’s specificity strengthens enforceability.
  • Weaknesses: Narrow claims might be circumvented by designing around.
  • Opportunities: Strategic licensing or collaborations could mitigate IP risks in overlapping areas.

Critical Evaluation

Strengths of the Patent Claims

  • Precise language minimizes ambiguity and potential invalidation.
  • The inclusion of specific embodiments supports enforcement.
  • Claims are tailored to key inventive features, emphasizing novelty.

Potential Vulnerabilities

  • Narrow claims may limit scope, allowing competitors to develop alternative solutions that circumvent patent rights.
  • The prior art landscape could contain references that narrow the claims further if challenged in litigation.
  • Material limitations or overly restrictive language could weaken the patent’s standing against evolving technological standards.

Strategic Recommendations

  • Broadening claims through auxiliary filings or continuation applications might extend coverage.
  • Continued patent prosecution focusing on method claims or alternative embodiments can fortify protection.
  • Active monitoring of competing patents during innovation development could preempt infringement issues.

Conclusion

The ‘516 patent’s claims effectively secure a specific segment of the technological landscape, emphasizing precise structural or functional features that support enforceability. Nonetheless, potential narrowness presents vulnerabilities exploitable by competitors. A thorough understanding of adjacent patents reveals overlapping interests, reinforcing the importance of proactive IP management. Strategic patent prosecution, vigilant landscape monitoring, and comprehensive legal safeguarding are essential to maximize value derived from the ‘516 patent.


Key Takeaways

  • The patent claims are well-structured, focusing on defining essential inventive features with sufficient clarity.
  • Narrow claims provide strong enforceability but may limit broad market coverage; broader claims risk invalidation.
  • The patent landscape is competitive, with overlapping patents in the same technological space; careful clearance and licensing are advised.
  • Ongoing patent prosecution can help extend and strengthen protective scope.
  • Stakeholders must balance claim breadth, validity, and freedom-to-operate considerations for long-term strategic advantage.

FAQs

Q1: What are the main innovative features protected by the ‘516 patent?
The core innovation lies in [specific molecular structure/method], which distinguishes it from prior art through [unique structural/functional characteristic].

Q2: How does the patent landscape influence commercialization strategies?
A crowded patent landscape necessitates thorough freedom-to-operate analyses, licensing strategies, and potential design-around development to mitigate infringement risks.

Q3: Can the claims in the ‘516 patent be challenged or invalidated?
Yes. Challenges based on prior art, lack of novelty, or obviousness are possible, especially if competitors identify gaps or similar disclosures.

Q4: Should the patent’s claims be broadened or narrowed?
A careful balance is needed. Broader claims increase market leverage but risk invalidation; narrower claims ensure strength but limit coverage.

Q5: What steps can patent holders take to protect their innovations effectively?
Continued patent prosecution, strategic filing of continuation or divisional applications, diligent landscape monitoring, and vigilant enforcement efforts are crucial.


References

  1. [Details about the ‘516 patent, its file history, and official claims]
  2. [Prior art references cited during prosecution]
  3. [Patent landscape reports related to the technological field]
  4. [Legal analyses of similar patent disputes]
  5. [Guidelines on patent claim drafting and enforcement strategies]

(Note: References are indicative; specific citations would depend on actual patent documentation and relevant patent databases.)

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Details for Patent 10,246,516

Applicant Tradename Biologic Ingredient Dosage Form BLA Approval Date Patent No. Expiredate
Sanofi-aventis U.s. Llc ZALTRAP ziv-aflibercept Injection 125418 August 03, 2012 10,246,516 2036-11-18
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Approval Date >Patent No. >Expiredate

International Patent Family for US Patent 10,246,516

Country Patent Number Estimated Expiration
World Intellectual Property Organization (WIPO) 2012017082 ⤷  Get Started Free
United States of America 9540446 ⤷  Get Started Free
United States of America 2017158774 ⤷  Get Started Free
United States of America 2013216544 ⤷  Get Started Free
European Patent Office 2600889 ⤷  Get Started Free
Germany 102010039018 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration

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