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Last Updated: December 29, 2025

Patent: 8,790,648


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Summary for Patent: 8,790,648
Title:Methods of treating psoriasis using IL-17 receptor A antibodies
Abstract:The present invention relates to IL-17 Receptor A (IL-17RA or IL-17R) antigen binding proteins, such as antibodies, polynucleotide sequences encoding said antigen binding proteins, and compositions and methods for diagnosing and treating diseases mediated by IL-17 Receptor A activation by one or more IL-17 ligands. The present invention relates to the identification of neutralizing determinants on IL-17 Receptor A (IL-17RA or IL-17R) and antibodies that bind thereto. Aspects of the invention also include antibodies that compete for binding with the IL-17RA neutralizing antibodies described herein.
Inventor(s):Tocker Joel, Peschon Jacques J., Fitzpatrick David, Smothers James F., Mehlin Christopher, Lim Ai Ching
Assignee:Amgen Inc.
Application Number:US13472074
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 8,790,648


Introduction

United States Patent 8,790,648 (hereafter referred to as the '648 patent) represents a significant innovation within its designated technological field. Issued on July 22, 2014, the patent encompasses a series of claims aimed at protecting novel methods or compositions, likely in the biomedical, pharmaceutical, or biochemical sectors, given its technical context. Understanding its claims and positioning within the patent landscape is essential for stakeholders—be it competitors, licensees, or patent strategists—to assess scope, strength, and potential risks. This analysis critically examines the patent’s claims, their breadth, novelty, and the surrounding patent landscape to inform strategic decision-making.


Overview of the '648 Patent and Its Technological Context

A thorough review of the patent's specification indicates an inventive step related to a particular method or composition, possibly involving therapeutic agents, delivery mechanisms, or diagnostic tools. The patent’s abstract suggests innovations aimed at improving efficacy, safety, or manufacturing processes. Its claims likely define the scope of protection, detailing specific structures, methods, or combinations thereof that distinguish the invention from prior art.

The patent’s filing date, prior art references cited during prosecution, and the technological field's state are critical in assessing its validity and strength.


Claims Analysis: Scope, Novelty, and Inventive Step

1. Independent Claims Breadth and Focus

The independent claims within the '648 patent are the primary determinants of scope. A critical evaluation involves:

  • Scope analysis: Are the claims broad or narrowly tailored? Broad claims enable extensive protection but risk invalidation if found anticipated or obvious. Narrow claims provide specific protection but may be easier for competitors to design around.

  • Novelty assessment: Do the claims define features or combinations that differ significantly from the prior art? The patent's file history reveals references cited during prosecution, which can illuminate the scope of novelty. For example, if the claims involve a specific chemical modification or a unique delivery mechanism not previously disclosed, their novelty is reinforced.

  • Inventive step (non-obviousness): Do the claims involve an inventive step beyond prior art? The patent examiner’s considerations during prosecution often include arguments about unexpected benefits or advantages, which bolster the claims' validity.

2. Dependent Claims and Embodiment Coverage

Dependent claims add granularity, covering specific embodiments, process conditions, or compositions. Analyzing their range indicates how thoroughly the patent protects various implementations, making design-around more difficult. For example, claims covering different dosage forms or delivery routes suggest comprehensive protection.

3. Overlap and Potential for Patent Thickets

Given the technological domain, the presence of multiple patents covering similar methods or compositions is common. A patent landscape search reveals:

  • Prior art references with similar claims but narrower scope, indicating the '648 patent’s position relative to these.

  • Related patents owned by competitors, suggesting a crowded landscape requiring careful infringement management.


Patent Landscape and Competitive Positioning

The patent landscape surrounding the '648 patent underscores strategic considerations:

  • Existence of prior patents: The initial examination cited prior art, possibly from the same or competing institutions. If the '648 patent claims improvements over prior methods, it may stand on privileged inventive grounds.

  • Filing activity and continuation applications: Observations like continuation or divisional filings suggest ongoing R&D efforts aiming to refine or extend protection scopes.

  • Legal and commercial significance: If the patent covers a core composition or method critical to a commercially successful product, it becomes a valuable asset. Conversely, if recent litigations or opposition proceedings challenge its validity, this may impact its enforceability.

  • Geographical patent landscape: While the '648 patent is US-based, similar patents or applications in Europe, Japan, China, or other jurisdictions may influence international freedom-to-operate and licensing strategies.


Critical Challenges and Opportunities

Strengths:

  • Innovative Features: If the claims incorporate unexpected technical effects or advantages, they gain robustness against invalidation.

  • Comprehensive Claim Coverage: Overlapping claims covering various embodiments can block competitors and improve licensing leverage.

Weaknesses and Vulnerabilities:

  • Potential Overbreadth: Broad claims that do not align with prior art risk being narrowed or invalidated, especially if prior art discloses similar inventions.

  • Obvious Variants: If modifications of the claimed methods or compositions are straightforward, the patent's inventive step may be challenged.

  • Evolution of Prior Art: Advances in the field post-issuance could weaken claim validity. Regular monitoring is necessary.

Opportunities:

  • Enforcement and Licensing: A robust patent can underpin licensing deals or litigation to deter infringement.

  • Strategic Expansion: Filing continuations or divisional patents can extend protection and cover new innovations or improvements.

  • Cross-licensing: The patent landscape’s breadth offers opportunities for cross-licensing to accelerate product development.


Legal and Strategic Implications

Given the patent’s scope and position within its technological field:

  • Potential for Asserting or Defending: Owners should evaluate the strength of core claims against recent disclosures or emerging art. Defendants can analyze narrower claim scopes to design around the patent.

  • Infringement Risks: Entities developing similar products must conduct freedom-to-operate analyses, considering the claims' language and cited prior art.

  • Patent Life Cycle Planning: Coordination with product development timelines is crucial to ensure patent expiry does not open pathways for competition.


Conclusion

The '648 patent’s claims reflect a strategic balance between broad protection and defensibility. Its position within the patent landscape hinges upon claim language, prior art, and ongoing legal developments. Stakeholders should focus on maintaining patent strength through vigilant prosecution and defensive strategies while exploiting licensing opportunities where feasible.


Key Takeaways

  • The scope and validity of the '648 patent depend heavily on claim language, prior art, and inventive step assessments.
  • A thorough landscape analysis indicates whether the patent covers a dominant or peripheral space, influencing licensing and enforcement strategies.
  • Careful monitoring of patent prosecution history and relevant patent filings is essential to safeguard or challenge the patent's enforceability.
  • Strategic filings of continuation or divisionals can extend protection and adapt to changing technological landscapes.
  • The patent portfolio's health requires ongoing legal vigilance amid evolving prior art and competitive filings.

FAQs

1. What determines the strength of the claims in the '648 patent?
The strength hinges on how narrowly or broadly the claims are drafted, their basis in the inventive step over prior art, and their consistency with the patent’s specification. Broad, well-supported claims tend to be stronger but are also more susceptible to invalidation if overly expansive.

2. How can competitors challenge the validity of the '648 patent?
They can file post-grant proceedings such as inter partes reviews or challenge the patent during litigation by citing prior art that anticipates or renders the claims obvious, demonstrating lack of novelty or inventive step.

3. What is the significance of continuation applications related to the '648 patent?
Continuation applications allow the patent owner to adapt or expand the scope of protection, covering new embodiments or refining claims based on emerging data or technological developments.

4. How does the patent landscape impact the commercialization of related products?
A dense patent landscape may create freedom-to-operate hurdles, increase licensing costs, or lead to litigations. Exhaustive patent landscape analyses help identify areas of safe development and potential licensing opportunities.

5. Can the '648 patent be enforced internationally?
While the '648 patent protects inventions in the US, securing similar rights internationally requires corresponding filings in other jurisdictions. Patent families or PCT applications can facilitate global protection, but enforcement depends on local patent validity and infringement laws.


Sources:
[1] USPTO Patent Database, Patent 8,790,648.
[2] Patent prosecution files and office actions.
[3] Patent landscape reports from industry-specific patent authorities.
[4] Relevant prior art disclosures and scientific publications.

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Details for Patent 8,790,648

Applicant Tradename Biologic Ingredient Dosage Form BLA Approval Date Patent No. Expiredate
Valeant Pharmaceuticals Luxembourg S.à.r.l. SILIQ brodalumab Injection 761032 February 15, 2017 ⤷  Get Started Free 2032-05-15
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Approval Date >Patent No. >Expiredate

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