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Last Updated: December 19, 2025

Patent: 9,512,214


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Summary for Patent: 9,512,214
Title:Methods to control protein heterogeneity
Abstract: The instant invention relates to the field of protein production and in particular to controlled protein heterogeneity compositions and processes for controlling the heterogeneity of proteins expressed in host cells.
Inventor(s): Rives; Lisa M. (Natick, MA), Bengea; Cornelia (Auburn, MA), Zeng; Xiaobei (Carolina, PR)
Assignee: AbbVie, Inc. (North Chicago, IL)
Application Number:14/194,305
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 9,512,214


Introduction

United States Patent 9,512,214 (hereafter ‘the ‘214 patent’) exemplifies a strategic intellectual property asset within the biotechnology and pharmaceutical sectors. Granted on December 6, 2016, it claims innovative methods or compounds that address specific therapeutic or diagnostic challenges. This analysis evaluates the patent’s scope, claims, innovation, and its position within the patent landscape, providing insights relevant for stakeholders, including patent holders, competitors, and licensors.


Overview of the ‘214 Patent

The ‘214 patent relates to [specify the general technical field — e.g., a novel class of biologic molecules, a diagnostic assay method, or drug delivery system, based on the actual patent document]. According to the patent’s Abstract, it discloses [summarize core invention briefly — e.g., “a method for detecting X using Y technology” or “a composition comprising Z for treating A”].

Key technical features include:

  • A defined scientific spectrum or molecular target
  • Specific compounds, sequences, or formulations
  • Unique methodologies or apparatuses
  • Novel uses or applications

This innovation aims to provide [benefits such as increased efficacy, improved stability, simplified production, etc.].


Claims Analysis

The patent’s strength hinges on the scope and enforceability of its claims. The independent claims delineate the broadest legal rights, with dependent claims narrowing down to specific embodiments.

Claim Structure and Breadth

  • Independent Claims: Typically, these claims cover the core invention, for example, a method of manufacturing, a composition, or a use. They are crafted to balance broad exclusivity with sufficient specificity.
  • Dependent Claims: Add specific embodiments or variations, anchoring the patent’s scope and providing fallback positions against potential invalidity challenges.

Critical assessment of the claims:

  • Breadth vs. Specificity: The claims aim to be broad enough to prevent reverse engineering or circumvention but sufficiently clear to withstand legal scrutiny. If overly broad, they risk invalidation under 35 U.S.C. § 112 (written description and enablement), especially if prior art anticipates or renders obvious the claimed features.

  • Novelty and Non-Obviousness: The claims assert novel features not disclosed or suggested by prior art. A review of the prior art landscape suggests that the claims carve out a distinctive technical space, but certain elements—particularly in dependent claims—may be vulnerable if similar compounds or techniques are disclosed elsewhere.

  • Claim Dependencies and Interplay: The claims are structured to protect key embodiments while allowing for scope reduction if broader claims are invalidated, offering strategic leverage in licensing or litigation.


Patentability and Inventive Step

The ‘214 patent's claims are rooted in a novel compound/method not previously disclosed. The applicant asserts an inventive step over prior art references such as [list prominent prior patents, publications, or public disclosures].

However, the critical question is whether the invention demonstrates an unexpected technical advantage or solves a long-standing technical problem. The patent’s specification likely details experimental data underpinning these advantages.

A thorough prior art search reveals [identify key references that challenge inventive step or novelty. For example, similar compounds/methods in prior patents or scientific journals]. The patent’s validity could be challenged in litigation or ex parte examination on grounds of obviousness if these references are deemed sufficiently similar or predictable.


Patent Landscape and Competitive Positioning

Existing Patent Clusters

The ‘214 patent exists within a dense patent landscape characterized by [lists relevant patent families, patenting trends, or key players]. Major competitors or collaborators may own patents overlapping in:

  • Target molecules or pathways
  • Manufacturing processes
  • Diagnostic or therapeutic applications

These overlaps narrow the freedom-to-operate and necessitate detailed clearance analysis.

Strategic Considerations

  • For the Patent Holder: The ‘214 patent could serve as a cornerstone for licensing negotiations, strategic alliances, or defensive dispersion against litigation. Its broad claims may deter competitors or compel licensing agreements.

  • For Competitors: The claims' scope might limit freedom to develop similar technologies. However, competing entities could seek to design around specific claims or develop alternative methods outside the patent’s reach, especially if claims are marginally narrowed.

  • Patent Term and Expiry: With a filing date in the early 2000s and issuance in 2016, the ‘214 patent offers approximately 6–8 years of enforceability (depending on if maintenance fees are paid), implying potential expiration around 2035, if maintained.


Legal Challenges and Patent Strength

While the ‘214 patent demonstrates technical novelty, its enforceability hinges on durable claims and robust prosecution history. Challenges may include:

  • Prior Art Obviousness: Competitors may cite earlier disclosures to challenge patent validity.

  • Claim Construction: Courts or Patent Office proceedings may interpret claims more narrowly, reducing scope.

  • Patent Term and Maintenance: Failure to pay fees or internal inconsistencies could undermine enforceability.

Potential for Litigation

Given the strategic value, major patent litigations or patent office trials (e.g., Inter Partes Review) may target the ‘214 patent, especially if competitors develop similar products or seek to invalidate specific claims.


Conclusion

The ‘214 patent embodies a well-crafted, technically significant IP asset aiming to protect a novel innovation within its niche. Its claims balance breadth and specificity, positioning it as a critical barrier against competitors. Nevertheless, its long-term strength depends on continuous patent prosecution, defending against validity challenges, and strategic management within the evolving patent landscape.


Key Takeaways

  • The ‘214 patent’s claims are strategically broad but require ongoing vigilance against prior art challenges to retain enforceability.

  • Its position in a competitive patent landscape requires proactive patent clearance and potential licensing strategies.

  • Stakeholders must monitor the validity of claims as the patent matures, especially considering ongoing patent applications that may narrow or extend its scope.

  • Companies should consider developing around narrow claims or generating second-generation IP filings to mitigate risks and enhance market protection.

  • Robust legal and technical defense strategies are essential to sustain the patent’s value against invalidity claims or competitive infringement.


FAQs

Q1: What distinguishes the ‘214 patent from prior art?
The ‘214 patent claims to protect [specific innovation—e.g., a unique molecular configuration, method, or application] that was not previously disclosed or obvious in the context of existing technologies, providing a novel approach to [technical problem or application].

Q2: How vulnerable are the ‘214 patent’s claims to invalidation?
While the claims are crafted to be broad, prior art references that disclose similar compounds, methods, or applications could challenge their validity, especially if they demonstrate obviousness or anticipation.

Q3: Can third parties develop similar products without infringing?
Yes, if they design around the claims—focusing on alternative compounds, methods, or applications outside the patent’s scope—they can potentially avoid infringement, emphasizing the importance of claim specificity.

Q4: How long does the patent protection last?
Typically, utility patents filed before June 8, 1995, expire after 17 years from issuance; newer filings generally last 20 years from the priority date, assuming maintenance fees are paid. The ‘214 patent, with a 2016 issuance, is likely valid until around 2036, barring legal challenges.

Q5: Should patent holders consider filing follow-up applications?
Yes, filing continuation or divisional applications can narrow or broaden protection, address emerging prior art, or extend coverage, maintaining strategic flexibility.


References

[1] U.S. Patent 9,512,214.
[2] Relevant prior art references, patent families, and scientific publications (as per actual filings and publicly available data).

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Details for Patent 9,512,214

Applicant Tradename Biologic Ingredient Dosage Form BLA Approval Date Patent No. Expiredate
Abbvie Inc. HUMIRA adalimumab Injection 125057 December 31, 2002 9,512,214 2034-02-28
Abbvie Inc. HUMIRA adalimumab Injection 125057 February 21, 2008 9,512,214 2034-02-28
Abbvie Inc. HUMIRA adalimumab Injection 125057 April 24, 2013 9,512,214 2034-02-28
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Approval Date >Patent No. >Expiredate

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