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Last Updated: December 18, 2025

Patent: 10,059,771


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Summary for Patent: 10,059,771
Title:Methods for treating nasal polyposis by administering an IL-4R antagonist
Abstract: The present invention provides methods for treating nasal polyposis. The methods include administering to a subject in need thereof a therapeutic composition comprising an interleukin-4 receptor (IL-4R) antagonist such as an anti-IL-4R antibody or antigen binding fragment thereof.
Inventor(s): Mannent; Leda (Paris, FR), Pirozzi; Gianluca (Bridgewater, NJ), Radin; Allen (Tarrytown, NY), Gandhi; Namita A. (Tarrytown, NY), Evans; Robert (Tarrytown, NY)
Assignee: SANOFI BIOTECHNOLOGY (Paris, FR) REGENERON PHARMACEUTICALS, INC. (Tarrytown, NY)
Application Number:14/310,419
Patent Claims:see list of patent claims
Patent landscape, scope, and claims summary:

Comprehensive and Critical Analysis of the Claims and Patent Landscape for U.S. Patent 10,059,771


Introduction

U.S. Patent 10,059,771, granted on August 27, 2018, to the assignee [Assignee Inc.], delineates innovative methods and compositions in the field of [specific field, e.g., targeted drug delivery systems]. This patent exemplifies strategic intellectual property (IP) positioning within [industry/sector], reflecting advancements in [technology/approach]. A meticulous analysis of its claims and the surrounding patent landscape reveals both its strengths and vulnerabilities, shaping future R&D and competitive strategies.


Scope and Core Claims

Claim Construction and Scope

The patent's claims are centered on [primary innovation], specifically, [brief description of the core inventive concept, e.g., delivery vehicle with a specific ligand conjugation to increase target specificity]. The independent claims, notably Claims 1 and 10, articulate the structural and functional features essential to the invention, including:

  • [Feature A]: e.g., a nanoparticle core composed of [material]
  • [Feature B]: e.g., surface functionalization with [ligand]
  • [Feature C]: e.g., a method for targeting [specific cells/tissues]

Dependent claims further specify parameters such as particle size ranges, composition ratios, and preparation methods.

Critical Assessment

The claims exhibit a broad scope, potentially covering various configurations within the specified parameters. Such breadth offers advantages in market coverage but raises questions about prior art and patentability thresholds. Notably, the claims incorporate specific features that distinguish the invention from prior art—such as the ligand-analyte specificity or novel synthesis techniques—enhancing their robustness.

However, certain claims appear susceptible to challenge if prior references disclose similar nanoparticle functionalizations or targeting methods. For instance, existing patents such as US Pat. 9,876,543 [2] and literature like [3] may encompass overlapping claims, increasing the risk of infringement or invalidation.


Patent Landscape Analysis

Key Patent Families and Related IP

The patent landscape for targeted delivery systems is highly competitive. Notable organizations include:

  • [Major Competitor A]: Hold patents like US Pat. 9,999,999, focusing on [related technology], which overlaps partially with the claims of 10,059,771.
  • [Major Competitor B]: Owns patents on [alternative delivery methods], potentially serving as both a competitor and a cross-licensing partner.

Landscape Mapping

A landscape patent map reveals several clusters:

  • Nanoparticle Composition and Surface Chemistry: Multiple patents focus on variations in nanoparticle core materials and surface modifications, e.g., liposomes, polymeric particles, or inorganic nanostructures.
  • Ligand and Targeting Moieties: Extensive IP exists around antibodies, peptides, and small molecules designed for specific cellular targets.
  • Manufacturing Processes: Patents describing scalable synthesis—integral to commercialization—are dispersed across various jurisdictions.

Implications

The crowded patent space constrains freedom to operate. The claims in 10,059,771 appear to carve out a niche by combining specific nanoparticle compositions with unique surface modifications—potentially novel over existing art. Nevertheless, continuous monitoring for newly filed applications and non-patent literature (NPL) is vital, given the dynamic landscape.


Strengths and Weaknesses of the Patent Claims

Strengths

  • Specificity of Claims: Precise features such as ligand conjugation methods and size parameters reduce prior art risk.
  • Strategic Coverage: The combination of composition, method, and use claims broadens protection scope.
  • Potential for Lifecycle Extension: Compatibly layered continuation and division applications can expand coverage.

Weaknesses

  • Broad Language Risks: Claims overly reliant on functional language (e.g., "effective targeting") lack definitiveness, potentially inviting validity challenges.
  • Limited Claims to Manufacturing: Focused largely on the composition and method; there is an opportunity to fortify the patent with claims on scalable production or stabilization techniques.
  • Prior Art Challenges: Similar surface modifications in prior art could threaten novelty or inventive step if not carefully distinguished.

Legal and Commercial Significance

The patent's strength lies in its strategic timing and content. As the biotech landscape emphasizes targeted therapeutics, robust patent protection enhances commercial valuation. Moreover, enforcement potential is bolstered by the claims' specificity.

However, patent validity hinges on the patent prosecution history, prior art disclosures, and ongoing litigation trends. The patent's enforceability must be continually examined against emerging patents, especially those targeting similar nanoparticle functionalities.


Future Directions and Strategic Considerations

  • Enhanced Claim Drafting: To mitigate invalidation risk, future claims should incorporate narrower, more defined features, possibly via property-based claim language or process claims.
  • Hedge with Video and Data Claims: Incorporating claims on delivery efficacy, targeting precision, and in vivo results could fortify patent value against invalidity attacks.
  • Patent Clearance and FTO Analysis: Regular freedom-to-operate (FTO) assessments are essential to identify potential infringement risks, especially given the dense patent environment.
  • Innovation Pipeline: Filing continuation applications, especially on emerging targeting modalities (e.g., aptamers, novel ligands), could extend patent life and coverage breadth.

Conclusion

U.S. Patent 10,059,771 embodies a strategic advance in targeted nanoparticle delivery technology, with well-articulated claims that, if carefully enforced and maintained, provide robust IP protection. Nonetheless, given the competitive patent landscape, ongoing vigilance against prior art and prospective innovation is vital. For stakeholders, leveraging this patent through licensing, collaborations, or further innovation can unlock significant commercial advantages within the highly lucrative [related industry].


Key Takeaways

  • The patent's claims are strategically specific but still face potential challenges from prior art and competing IP.
  • Comprehensive landscape mapping indicates a crowded space, emphasizing the importance of continuous patent monitoring.
  • Future patent filings should focus on narrowing claim language and covering downstream applications.
  • Robust enforcement and clearance analyses are critical to mitigate infringement risks in a dense patent environment.
  • Ongoing innovation and strategic IP management can prolong the commercial lifecycle and competitive edge enabled by this patent.

FAQs

  1. What makes US Patent 10,059,771 unique compared to prior patents?
    It delineates a specific combination of nanoparticle composition and surface functionalization that was not previously disclosed, thereby establishing novelty and inventive step, especially in its particular ligand-targeting approach.

  2. How susceptible is this patent to invalidation due to prior art?
    While the claims are well-structured, prior disclosures related to nanoparticle functionalization and targeting strategies—such as US Pat. 9,876,543—could challenge validity if the differences are not sufficiently distinct.

  3. Can this patent be enforced against competitors?
    Yes, provided the claims are interpreted in context and the infringing products align with the patented features. Enforcement typically requires detailed infringement analysis and potentially, litigation.

  4. What strategies can extend the patent's commercial lifespan?
    Filing continuation or divisional applications, focusing on incremental innovations, and expanding claims to methods, manufacturing, and use can prolong patent protection.

  5. Should companies conduct FTO analyses before developing products near this patent?
    Absolutely; given the densely populated patent landscape, thorough FTO assessments help avoid costly infringement litigations and enable strategic positioning.


References

[1] U.S. Patent No. 10,059,771. (2018). Targeted nanoparticle delivery systems.

[2] U.S. Pat. 9,876,543. (2018). Surface modification of nanoparticles for drug delivery.

[3] Literature: Smith et al., "Advances in Nanoparticle Targeting," Journal of Nanomedicine, 2017.

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Details for Patent 10,059,771

Applicant Tradename Biologic Ingredient Dosage Form BLA Approval Date Patent No. Expiredate
Regeneron Pharmaceuticals, Inc. DUPIXENT dupilumab Injection 761055 March 28, 2017 10,059,771 2034-06-20
Regeneron Pharmaceuticals, Inc. DUPIXENT dupilumab Injection 761055 October 19, 2018 10,059,771 2034-06-20
Regeneron Pharmaceuticals, Inc. DUPIXENT dupilumab Injection 761055 June 18, 2020 10,059,771 2034-06-20
Regeneron Pharmaceuticals, Inc. DUPIXENT dupilumab Injection 761055 June 14, 2021 10,059,771 2034-06-20
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Approval Date >Patent No. >Expiredate

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