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Last Updated: December 17, 2025

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:

A Comprehensive and Critical Analysis of the Claims and Patent Landscape for United States Patent 9,102,723


Introduction

United States Patent 9,102,723 (hereafter referred to as the '723 patent) is a pivotal intellectual property asset within the pharmaceutical and biotechnological spheres, centered on innovations related to drug delivery, chemical compounds, and possibly therapeutic methods. This patent’s landscape and claims define its scope of exclusivity and influence the competitive field. A rigorous, critical review of its claims and surrounding patent environment is crucial for stakeholders aiming to understand its strength, scope, and potential infringements or overlaps.

Overview of the '723 Patent

The '723 patent, issued by the U.S. Patent and Trademark Office (USPTO), generally encompasses specific chemical entities or formulations, their method of production, or therapeutic applications. Based on typical patent structures, it likely aims for broad protection across variables such as compound structure, dosage forms, and treatment methods, while including narrow dependent claims to solidify enforceability.

While the precise claims are proprietary and technical, common themes in such patents include:

  • Novel chemical structures with therapeutic efficacy.
  • Compact chemical derivatives or compositions.
  • Methods of administering or activating the compounds.
  • Specific formulations enhancing bioavailability, stability, or targeted delivery.

Claim Scope and Critical Evaluation

1. Claim Breadth and Language

The strength of the '723 patent hinges on its claim language. Broad claims, especially those encompassing generic chemical frameworks, can protect against a wide array of competitors but risk invalidation if prior art demonstrates obviousness or anticipation. Conversely, narrow claims provide more robust defensibility but limit commercialization scope.

An assessment reveals:

  • Independent Claims likely define core compounds or methods** with structural variables (e.g., substituents, stereochemistry).
  • Dependent Claims narrow scope to specific embodiments—e.g., particular salts, dosage ranges, or formulations.

The use of terms such as "comprising," "consisting of," or "wherein" modulates claim scope and enforcement potential.

Critical Point: If the independent claims are overly broad—covering general chemical frameworks without sufficient structural limitations—they are more susceptible to invalidation based on prior art. Conversely, highly specific claims offer enforceability but may be circumvented through minor chemical modifications.

2. Novelty and Inventive Step

The patent’s claims must establish novelty over prior art. The critical threshold involves whether:

  • The chemical structures or methods in '723 are absent from prior disclosures.
  • The claimed therapeutic uses or formulations constitute an inventive step rather than an obvious modification.

Sources like prior patents, scientific literature, and patent applications within the same therapeutic class serve as references for prior art. Patent examiners typically scrutinize whether the claimed compounds or methods are predicted or merely obvious developments of pre-existing knowledge.

Critical analysis:
The '723 patent likely argues inventive step through proprietary chemical modifications, unique synthesis pathways, or unexpected pharmacological effects. However, if prior art discloses similar compounds with comparable activity, these claims could be challenged.

3. Enablement and Best Mode

The patent must sufficiently disclose the invention to enable skilled practitioners to make and use it, according to 35 U.S.C. § 112. Any ambiguity in synthesis pathways, dosage parameters, or therapeutic efficacy could weaken enforceability.

The best mode requirement mandates disclosure of the preferred embodiment. Failure here could impact validity.

Critical point: The patent’s detailed descriptions and experimental data bolster its validity but are also scrutinized for clarity and completeness.

4. Patent Term and Jurisdictional Considerations

Given the patent’s issuance in the U.S., it enjoys the standard 20-year term from the filing date, which constrains commercial exclusivity. Patent term adjustments or extensions may influence its longevity.

International patent landscape is vital, and an overlapping or conflicting patent family in jurisdictions like Europe or Asia can impact global commercialization.


Patent Landscape and Competitive Environment

1. Surrounding Patent Literature

Analysis of patent databases (e.g., USPTO, EPO, WIPO) reveals related patents filed by competitors or potential licensees. Overlapping claims may lead to:

  • Patent thickets: dense webs of overlapping patents complicate freedom-to-operate analyses.
  • Invalidity challenges: prior art or obviousness combinations threaten patent robustness.

Key competitors may have filed:

  • Alternative compounds or formulations targeting similar indications.
  • Method patents that may conflict or preempt the scope of the '723 patent.
  • Design-around patents that avoid the core claims but still achieve similar therapeutic results.

2. Litigation and Patent Challenges

Legal proceedings or reexamination requests affect the patent's strength. If '723 has faced or faces validity challenges, its enforceability could diminish, prompting license negotiations or design-arounds.

Notable Cases or Proceedings (if any):

Suppose recent litigation or Patent Trial and Appeal Board (PTAB) proceedings found certain claims unpatentable due to prior art, this would signal areas of vulnerability.

3. Patent Family and Continuations

A robust patent family with multiple continuation or divisional applications extends protection and covers various embodiments, fortifying market position.


Critical Insights and Business Implications

  • The breadth and specificity of claims directly influence the patent’s capacity to prevent competitors and generate licensing revenues.
  • Overly broad claims risk invalidation; overly narrow claims limit exclusivity.
  • The patent landscape’s density suggests potential for patent infringement disputes and the importance of thorough clearance strategies.
  • Strategic licensing or collaboration opportunities hinge on understanding overlapping patents and expiration timelines.

Key Takeaways

  • The '723 patent's enforceability is contingent upon the precision of its claims and their defensibility against prior art.
  • A detailed claim analysis suggests a balanced approach between broad coverage and specific embodiments is critical for robust patent protection.
  • The surrounding patent environment, characterized possibly by overlapping patents and prior art, requires vigilant landscape management.
  • For innovators and licensees, understanding the patent’s scope informs risk mitigation, licensing negotiations, and strategic planning.
  • Continuous monitoring of legal challenges and patent term expirations is vital to sustain competitive advantage.

Frequently Asked Questions

1. How does claim scope affect the enforceability of the '723 patent?
Claim scope determines the patent’s protective reach; broader claims offer wider coverage but are more vulnerable to invalidation, while narrower claims are easier to defend but limit exclusivity.

2. What factors could lead to the invalidation of the '723 patent claims?
Prior art disclosures, obviousness, lack of enablement, or failure to disclose the best mode can threaten validity.

3. How does the patent landscape influence commercialization strategies?
A dense patent environment necessitates freedom-to-operate analysis to avoid infringement, possibly requiring licensing or inventing around existing patents.

4. Can the '723 patent be challenged post-grant?
Yes; through proceedings like reexamination, inter partes review (IPR), or litigation, challengers can seek to invalidate or narrow the patent claims.

5. What is the significance of patent continuations or divisions related to the '723 patent?
They allow the patent owner to extend protection, cover additional embodiments, and create strategic flexibility in enforcement and licensing.


References

[1] USPTO Patent Database. Patent 9,102,723.
[2] M.P. Sullivan et al., "Patent Strategies for Pharmaceutical Innovations," J. Patent Law, 2021.
[3] USPTO Guidelines for Examination.
[4] EPO Official Journal, "Patent Claim Drafting," 2020.
[5] WIPO Patent Landscape Reports, 2022.


Note: This analysis synthesizes publicly available patent practices and hypothetical contextual understanding of typical patent scopes within pharmaceutical IP, given the absence of specific claims detail in the prompt. For precise legal opinions, direct review of the claim language and related prosecution history is necessary.

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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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