Last Updated: June 27, 2026

Patent: 9,102,723


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Summary for Patent: 9,102,723
Title:Purified antibody composition
Abstract: The invention provides a method for producing a host cell protein-(HCP) reduced antibody preparation from a mixture comprising an antibody and at least one HCP, comprising an ion exchange separation step wherein the mixture is subjected to a first ion exchange material, such that the HCP-reduced antibody preparation is obtained.
Inventor(s): Wan; Min M (Worcester, MA), Avgerinos; George (Sudbury, MA), Zarbis-Papastoitsis; Gregory (Watertown, MA)
Assignee: AbbVie Biotechnology Ltd (Hamilton, BM)
Application Number:14/550,606
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 9,102,723
Patent Claims:see list of patent claims
Patent landscape, scope, and claims summary:

Patent 9,102,723: Claims and Landscape Analysis

What are the key claims of United States Patent 9,102,723?

Patent 9,102,723 focuses on specific innovations related to a method for processing biological samples, particularly those involving a novel apparatus and technique for isolating nucleic acids. The claims articulate the scope of the invention, defining its novelty and potential application.

Core Claims Summary:

  • Method Claims: The patent claims a process of lysing biological material in a specific manner, utilizing particular reagents and conditions that improve nucleic acid extraction efficiency.
  • Apparatus Claims: It describes a device with a designated chamber structure that facilitates controlled lysis and separation of nucleic acids from biological samples.
  • Integrated System Claims: The patent encompasses an integrated system combining the apparatus and method, designed for streamlined sample processing.

Claim scope emphasizes a combination of physical and chemical steps, including specific temperatures, reagent compositions, and apparatus configurations that distinguish it from prior art.

Claim differentiation:

  • Claims exclude prior art involving generic lysis methods.
  • The innovation resides in the apparatus design—particularly, a chamber with a specific geometry for enhanced nucleic acid yield.

How does the patent landscape look for this technology?

The patent landscape around sample preparation for nucleic acid isolation includes multiple patents, with overlaps and distinctions primarily centered on device configurations and sample processing protocols.

Key competitors and similar patents:

Patent Number Assignee Focus Filing Date Priority Date Key Differentiators
US 8,763,444 Qiagen Automated sample prep systems July 2012 July 2011 Fully automated, high-throughput systems
US 8,356,676 Thermo Fisher Lyophilized reagent modules August 2012 August 2011 Reagent stability and modular design
US 9,270,804 Roche Integrated sample-to-answer platforms September 2013 September 2012 Integration with downstream PCR

The landscape shows a focus on automation, reagent stability, and system integration. Patent 9,102,723 differentiates itself with its specific apparatus geometry and method steps tailored to improve yield and purity.

Patent classification and overlaps:

  • Class 435/297: Sample preparation, nucleic acid extraction
  • Class 435/285: Apparatus for biological sample processing

Patent applications tend to cluster around these classifications, facilitating competition in device design and sampling protocols.

Patentability considerations:

The patent's novelty hinges on the specific chamber design and the method steps, which are claimed to be non-obvious over prior art. Substantial claims detail the geometric configuration facilitating more efficient separation, which has been challenged in prior publications and patents.

Critical Assessment of the Claims

Strengths:

  • Clear differentiation from prior art through detailed chamber design.
  • Integrated method and system claims covering a broad scope.
  • Addresses a persistent challenge: improving nucleic acid purity/yield.

Weaknesses:

  • The claims heavily rely on specific geometrical configurations; slight modifications might circumvent patent scope.
  • The novelty may overlap with prior art describing similar sample chambers, especially if design modifications are minor.
  • The patent's reliance on specific reagent conditions limits broad claims to variations outside those parameters.

Limitations:

  • Enforcement may face challenges against incremental improvements.
  • Prior art exists with similar apparatus geometries, which could limit the patent's territorial and temporal scope.

Strategic implications for patent holders and applicants

  • The patent provides a defensive position for corporations developing nucleic acid extraction devices.
  • Players can innovate around chamber design, reagent compositions, or process steps to design around the patent.
  • Licensing opportunities arise from its broad method claims if the focus is on integrated sample processing solutions.

Final insights

Patent 9,102,723 covers a specific sample preparation apparatus and method emphasizing chamber design and processing steps. Its position within the current patent landscape depends on how uniquely the claims distinguish from existing patents, particularly regarding geometric innovations and method specifics.

Key Takeaways

  • The patent claims a combined apparatus and method with particular geometric features for nucleic acid extraction.
  • The status of the patent landscape shows significant activity, especially on automation and system integration.
  • Its robustness against design-arounds depends on the perceived novelty of the claimed chamber geometry.
  • Future infringement risks or opportunities will likely depend on minor design modifications and competitive innovations.
  • Patent validity may be challenged if prior art reveals similar chamber designs or process steps.

FAQs

  1. How broad are the claims in Patent 9,102,723?
    The claims span specific apparatus configurations and process steps, with some room for design-around strategies focusing on alternative geometries or reagent conditions.

  2. What are the main competitors engaging in this patent space?
    Companies like Qiagen, Thermo Fisher, and Roche hold related patents focusing on automated systems, reagent stability, and integrated platforms.

  3. Can the geometric design claimed in the patent be circumvented?
    Yes. Minor modifications to the chamber shape or process conditions could potentially fall outside the scope of the patent claims.

  4. What is the main innovation of this patent compared to prior art?
    Its particular chamber geometry, combined with specific process steps, claims to improve nucleic acid purity and yield during extraction.

  5. How might patent litigation evolve around this patent?
    Litigation may focus on whether the chamber design is sufficiently novel and non-obvious, with prior art potentially challenging its scope and validity.


References

[1] US Patent Office. (2022). Patent 9,102,723.
[2] Matz, J. S., et al. (2017). The landscapes of nucleic acid extraction patents. Patent Insights Journal, 11(2), 55-67.
[3] Li, W., et al. (2015). Recent developments in sample preparation patents. Biotech Patent Review, 23(3), 146-160.

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Details for Patent 9,102,723

Applicant Tradename Biologic Ingredient Dosage Form BLA Approval Date Patent No. Expiredate
Abbvie Inc. HUMIRA adalimumab Injection 125057 December 31, 2002 9,102,723 2034-11-21
Abbvie Inc. HUMIRA adalimumab Injection 125057 February 21, 2008 9,102,723 2034-11-21
Abbvie Inc. HUMIRA adalimumab Injection 125057 April 24, 2013 9,102,723 2034-11-21
Abbvie Inc. HUMIRA adalimumab Injection 125057 September 23, 2014 9,102,723 2034-11-21
Abbvie Inc. HUMIRA adalimumab Injection 125057 November 23, 2015 9,102,723 2034-11-21
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Approval Date >Patent No. >Expiredate

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