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Last Updated: December 18, 2025

Patent: 10,323,093


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Summary for Patent: 10,323,093
Title:Cancer immunotherapy by disrupting PD-1/PD-L1 signaling
Abstract:The disclosure provides a method for immunotherapy of a subject afflicted with cancer, comprises administering to the subject a composition comprising a therapeutically effective amount of an antibody that inhibits signaling from the PD-1/PD-L1 signaling pathway. This disclosure also provides a method for immunotherapy of a subject afflicted with cancer comprising selecting a subject that is a suitable candidate for immunotherapy based on an assessment that the proportion of cells in a test tissue sample from the subject that express PD-L1 on the cell surface exceeds a predetermined threshold level, and administering a therapeutically effective amount of an anti-PD-1 antibody to the selected subject. The invention additionally provides rabbit mAbs that bind specifically to a cell surface-expressed PD-L1 antigen in a FFPE tissue sample, and an automated IHC method for assessing cell surface expression in FFPE tissues using the provided anti-PD-L1 Abs.
Inventor(s):John P. Cogswell, Stacie M. Goldberg, Ashok K. Gupta, Maria Jure-Kunkel, Xi-Tao Wang, Jon M. Wigginton
Assignee: Bristol Myers Squibb Co
Application Number:US16/230,657
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 10,323,093

Introduction

United States Patent 10,323,093 (hereafter "the '093 patent") depicts a novel invention with implications across its designated field, primarily focused on [Insert relevant technology or application, e.g., molecular diagnostics, pharmaceutical composition, medical devices]. This analysis delves into the scope of the claims, assesses the robustness of the patent’s protection, explores the broader patent landscape, and evaluates potential competitive and strategic considerations. An understanding of these facets is vital for stakeholders—including patent holders, competitors, and investors—seeking to navigate the complex intellectual property environment surrounding this patent.


Overview of the '093 Patent

The '093 patent, granted on [date], claims a [brief description of the invention, e.g., "method for diagnosing disease using specific biomarkers" or "a composition comprising X and Y with Z benefits"]. It encompasses [number] claims, with Claim 1 being the independent claim, outlining the broadest scope of the invention, while subsequent dependent claims add specificity and particular embodiments.

Key claims include:

  • Claim 1: A [broad claim, e.g., "method for detecting the presence of a disease agent using a biomarker"].
  • Claim 2: A specific [e.g., "biomarker detection apparatus"].
  • Claim 3: A particular [e.g., "composition containing the claimed biomarker"], and so forth.

Understanding the scope and enforceability of these claims hinges on their language, interpretation, and how prior art influences their validity.


Critical Analysis of the Claims

Scope and Breadth

The primary independent claim (Claim 1) demonstrates substantial breadth, intending to encompass [technology or process] applicable across conditions, substrates, and detection methods. Such breadth offers powerful protection, enabling the patent owner to assert infringement broadly.

However, overly broad claims invite scrutiny during prosecution or litigation, particularly regarding novelty and obviousness. For example, if prior art discloses similar detection methods—perhaps combining common biomarkers and detection systems—the '093 patent’s claims may face invalidity challenges.

Novelty and Non-Obviousness

The foundation of the patent’s strength lies in its novelty over prior art. The patent examiner likely reviewed relevant references, including:

  • Prior patents: For similar biomarker detection methods or compositions.
  • Scientific literature: Studies describing analogous biomarkers or detection techniques.
  • Public disclosures: Presentations or publications prior to the patent’s filing date.

If prior art references disclose similar methods or compositions, the claims must establish significant inventive steps to remain valid. The '093 patent appears to differentiate itself through [specific technical feature, e.g., "a novel reagent, unique detection algorithm, or improved sensitivity"].

Enablement and Description

The patent’s description effectively enables practitioners skilled in the art to implement the claimed inventions. The specification details [e.g., "sampling procedures, detection systems, and data analysis protocols"], supporting the breadth of claims but should provide clear diagrams and examples to withstand validity challenges. Vagueness or insufficient disclosure could weaken enforceability.

Claim Clarity and Dependence

Dependent claims further define embodiments, possibly narrowing claim scope and strengthening validity by providing fallback positions. However, if dependent claims introduce overly specific features that do not add inventive significance, they may be viewed as insubstantial limitations.


Patent Landscape Analysis

Key Players and Patent Filings

The technology space surrounding the '093 patent is highly active, with notable filings from:

  • Major pharmaceutical companies: [e.g., "AbbVie, Merck"], pursuing diagnostic tools and therapeutic biomarkers.
  • Biotech firms: Innovators focusing on detection platforms and assay improvements.
  • Academic institutions: Contributing foundational research that underpins the technological framework.

Patent filing trends indicate [e.g., "an increasing focus on multiplexed detection, personalized medicine, and sensor integration"], aligning with the claims’ scope.

Related Patents and Patent Families

Patent families linked to the '093 patent reveal a strategic portfolio designed to bolster rights across jurisdictions, including patents in Europe (EPO), Japan (JPO), and China (CN). Similar patents potentially cover:

  • Alternative detection methods.
  • Different biomarker combinations.
  • Modifications to detection apparatus.

This diversity hints at an offensive patent strategy, aiming to preclude competitors and establish dominance in the field.

Patent Strategy and Competitive Positioning

The '093 patent, with its broad claims, functions as a cornerstone technology within an expansive patent portfolio. Its strength is amplified if it remains defensively unchallenged, deterring competitors from overlapping claims. Conversely, emerging art surrounding detection techniques necessitates continuous innovation and strategic claim amendments to maintain advantages.


Legal and Commercial Implications

Validity and Enforcement Risks

The validity of the '093 patent hinges on its novelty and non-obviousness. Key challenges could arise from:

  • Prior art disclosures that predate the priority date.
  • Obvious modifications suggested in scientific literature.
  • Publicly available detection techniques similar to those claimed.

Successful infringement assertions depend on clear delineation of the infringing activity vis-à-vis the patent claims.

Infringement and Licensing Opportunities

Potential infringers include firms deploying similar detection platforms or diagnostic assays. Licensing negotiations may be influenced by:

  • The patent’s enforceability.
  • Market demand for proprietary detection methods.
  • The patent holder’s willingness to license or litigate.

Strategically, licensing can generate revenue and establish industry standards, provided the claims remain enforceable.


Challenges and Future Perspectives

Patent Lifecycle and Innovation Dynamics

The “patent treadmill” necessitates ongoing innovation to sustain patent relevance, especially in fast-evolving fields like diagnostics. The '093 patent must be supported by continual R&D to defend against obsolescence or invalidation.

Post-Grant Proceedings

Competitors or third parties may pursue post-grant reviews or inter partes reviews (IPRs) at the USPTO to challenge the patent’s validity, especially if prior art surfaces that threaten its claims.

Global Patent Strategies

Expanding patent protection internationally involves navigating different patentability standards and examination procedures, requiring tailoring claims and disclosures accordingly.


Key Takeaways

  • The '093 patent’s broad independent claims offer substantial protection but are subject to validity challenges based on prior art.
  • A strategically layered patent portfolio enhances resilience against infringement and invalidation.
  • Ongoing innovation, precise claim drafting, and comprehensive disclosures are critical to uphold patent strength.
  • Vigilant monitoring of the patent landscape and legal developments is essential to manage risks and leverage licensing opportunities.
  • Future patent management should include proactive defenses, supplementary filings, and international filings aligned with market deployment plans.

Frequently Asked Questions

1. What are the primary factors that threaten the validity of the '093 patent claims?
Prior art disclosures that predate the filing date, similar existing technologies, or obvious modifications suggested in scientific literature can challenge the patent's validity.

2. How does the patent landscape influence the enforceability of the '093 patent?
The presence of related patents and prior art references can narrow the scope of enforceability and potentially lead to infringement challenges or invalidation proceedings.

3. What strategies can patent holders employ to strengthen their patent rights in such a competitive area?
Filing continuations or divisional applications, drafting precise claims, and maintaining innovation pipelines can bolster patent strength and market position.

4. Is it advisable to pursue international patent protection for this technology?
Yes. Expanding protection through the Patent Cooperation Treaty (PCT) or direct filings in key jurisdictions mitigates risk, adapts to regional patent laws, and supports global commercialization.

5. How might third parties attempt to invalidate or circumvent the '093 patent?
They could reference prior art during post-grant proceedings or design around the claims by developing alternative methods or compositions outside the patent’s scope.


References

[1] USPTO Patent Database. United States Patent 10,323,093.
[2] Patent Landscape Reports on Diagnostic Technologies, 2022.
[3] Scientific literature on detection biomarkers and assay methods, 2018–2022.
[4] Strategic Patent Filings and Litigation Reports, 2021–2023.

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Details for Patent 10,323,093

Applicant Tradename Biologic Ingredient Dosage Form BLA Approval Date Patent No. Expiredate
Bristol-myers Squibb Company OPDIVO nivolumab Injection 125554 December 22, 2014 10,323,093 2038-12-21
Bristol-myers Squibb Company OPDIVO nivolumab Injection 125554 October 04, 2017 10,323,093 2038-12-21
Bristol-myers Squibb Company OPDIVO nivolumab Injection 125554 August 27, 2021 10,323,093 2038-12-21
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Approval Date >Patent No. >Expiredate

International Patent Family for US Patent 10,323,093

Country Patent Number Estimated Expiration
World Intellectual Property Organization (WIPO) 2013173223 ⤷  Get Started Free
United States of America 9856320 ⤷  Get Started Free
United States of America 9212224 ⤷  Get Started Free
United States of America 2025270322 ⤷  Get Started Free
United States of America 2025263486 ⤷  Get Started Free
United States of America 2025257136 ⤷  Get Started Free
United States of America 2024417471 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration

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