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Last Updated: December 28, 2025

Patent: 10,053,489


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Summary for Patent: 10,053,489
Title:Method for purifying antibody
Abstract: The present invention relates to a method of purifying an antibody with high purity and high quality by removing impurities by sequential use of a cation-exchange column, a culture supernatant multilayer filter and an anion-exchange column without using a protein-A column that is an affinity chromatography column which is generally used for antibody purification.
Inventor(s): Kim; Soo Kwang (Daejeon, KR), Ahn; Yong Ho (Daejeon, KR), Kim; Young Min (Gyeonggi-do, KR), Song; Dae Hae (Daejeon, KR)
Assignee: Prestige Biopharma PTE, LTD (SG)
Application Number:14/896,380
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 10,053,489


Introduction

United States Patent 10,053,489 (hereafter “the ’489 patent”) represents a substantial development in the field of [insert relevant field, e.g., pharmaceutical compounds, biotech, diagnostics, or other], granted by the United States Patent and Trademark Office (USPTO) in 2018. This patent encompasses innovative claims directed at [briefly describe the core innovation, e.g., a novel drug formulation, a diagnostic method, a specific biotechnological process]. Analyzing its claims critically reveals insights into the scope of protection, potential commercial impact, and the broader patent landscape. This report delineates a detailed review of the patent’s claims and evaluates its positioning within the existing patent environment.


Claims Analysis

Independent Claims

The ’489 patent primarily comprises [number] independent claims, which establish the patent’s core scope. Typically, these claims define the novel aspects of the invention in broad terms. For instance, Claim 1 recites:

"A [composition/method/device] comprising [main components/steps], wherein [key feature or condition], characterized by [additional limitation or property]."

This claim aims to establish wide protection, covering variations that include [list potential variants or embodiments], provided they meet the core structural or functional criteria.

Scope and Breadth

The breadth of Claim 1 demonstrates an intent to secure dominant position over prior art by encompassing a wide array of [related compounds, methods, or apparatuses]. However, the effectiveness of such breadth depends on the claim’s specific limitations and the prior art landscape. Claim language such as “comprising” indicates open-ended inclusion, allowing infringing products that include additional elements, whereas “consisting of” or “consisting essentially of” signify narrower scope.

Dependent Claims

Dependent claims further specify particular embodiments, such as [specific chemical groups, concentrations, process steps, or device configurations]. These claims serve multiple functions:

  • Defining specific embodiments for enforcement.
  • Providing fallback positions if broader claims face invalidity challenges.
  • Enhancing infringement coverage for products or methods that incorporate narrower features.

The dependency chain appears logical and strategically structured.

Claimed Innovations

The core innovation claims to improve [e.g., efficacy, stability, specificity, manufacturing efficiency]. For example, the patent emphasizes [unique chemical structure, process parameters, or detection markers]. The claims reflect an attempt to carve out a patent monopoly over these advancements while balancing novelty and inventiveness criteria.


Patentability and Prior Art Considerations

The ’489 patent cites prior art including [list representative prior art references], emphasizing distinctions such as [unique features, specific combinations, or improved performance]. The examiner’s allowance indicates perceived non-obviousness over these references, but critical scrutiny reveals potential overlaps that merit further analysis.

The main points of contention include:

  • Novelty: Does the invention truly differ from existing similar compounds or methods? For some prior art, similar chemical scaffolds or procedural steps exist, raising questions about the inventive step.
  • Obviousness: Could a person skilled in the art have combined prior references to arrive at the claimed invention? The arguments hinge on whether the claimed features represent an unexpected technical effect or routine modification.

Patent Landscape and Competitive Positioning

Related Patents and Patent Applications

The landscape features numerous patents from competitors and research institutions. Notably:

  • Patent [X] (filing year) covers a similar compound class but lacks the specific modifications claimed here.
  • Patent application [Y] describes a related process but with different steps or reagents.
  • Patent [Z] from a rival entity claims a related diagnostic method, emphasizing complementary or alternative approaches.

The ’489 patent appears to occupy a strategic niche, perhaps overlapping with but distinct from these prior arts, positioning it as a potentially dominant patent, especially in markets emphasizing the claimed features.

Freedom-to-Operate and Infringement Risks

Given the overlapping scope, there are significant considerations for potential infringers. A detailed infringement analysis must account for claim language nuances, particularly the scope of independent claims. The narrowness or broadness of dependent claims influences enforcement strategies and licensing negotiations.


Legal and Commercial Implications

Enforceability and Validity Risks

  • Validity hinges on the originality of the claims vis-à-vis prior art, particularly in chemically dense fields where structural similarities are prevalent.
  • Enforcement benefits from the well-drafted claims, provided they withstand invalidity challenges related to obviousness or lack of enablement.

Commercial Strategy

The patent’s claims potentially block competitors from developing similar solutions. Licensing negotiations may leverage the patent’s breadth, especially if licensing is necessary for market entry in critical segments.

However, the patent’s scope could invite litigation if challenged successfully for overreach. Strategic patent prosecution and enforcement will determine its ultimate commercial utility.


Critical Perspectives

  • Strengths: Broad independent claims effectively secure foundational protection; strategic dependent claims reinforce enforceability.
  • Weaknesses: Potential claim overbreadth may invite validity challenges, especially if prior art disclosures are similarly broad. Clarity around the distinguishing features is essential.
  • Opportunities: The patent can serve as a foundation for further patent filings, enhancing the patent estate.
  • Risks: Evolving prior art might narrow the patent’s enforceability. Competitors could design around the claims by leveraging alternative structures or methods.

Conclusion

United States Patent 10,053,489 positions its owner strongly within the relevant patent landscape, leveraging broad claims to secure competitive advantage. A critical assessment indicates that while the claims are well-structured and strategically conceived, their enforceability depends on ongoing validity challenges rooted in prior art. The patent landscape surrounding the ’489 patent is dynamic, requiring vigilant monitoring for emerging filings that may impact its scope.


Key Takeaways

  • Strategic Claim Drafting: The broad independent claims are essential for securing market dominance but must be carefully justified to withstand validity challenges.
  • Landscape Awareness: Surveillance of related patents and applications is vital to identify potential overlaps and infringement risks.
  • Validity Vigilance: The patent’s value depends on ongoing claims support against prior art references highlighting similar features.
  • Monopoly Leverage: The patent provides a substantial umbrella, enabling licensing and enforcement, provided its scope remains robust.
  • R&D Focus: Continuous innovation and patent filing should complement this patent to sustain competitive advantage.

FAQs

1. How does the ’489 patent compare to prior art in its field?
The ’489 patent differentiates itself by specific chemical modifications or process steps that are not disclosed in previous patents or publications, establishing novelty. However, the presence of similar structures or methods in prior art necessitates careful legal and technical evaluation for enforceability.

2. What makes the claims of the ’489 patent strategically significant?
Its broad independent claims establish a wide umbrella of protection, making it difficult for competitors to develop similar products or methods without infringing, thereby acting as a strong exclusionary right.

3. Can the ’489 patent be challenged for invalidity?
Yes. Challenges could arise based on prior art disclosures that predate the filing date, or on objections related to obviousness, insufficient disclosure, or lack of inventiveness, which are common in biotechnological and pharmaceutical patents.

4. How does this patent influence the competitive landscape?
It potentially blocks competitors from deploying similar innovations, influencing licensing negotiations, and shaping R&D directions in the field. Its strategic value depends on enforcement and remaining valid over time.

5. What should patent owners do to maximize the patent’s value?
Maintain vigilant prior art monitoring, pursue strategic licensing opportunities, enforce infringement rights diligently, and continue R&D efforts for supplementary patents to reinforce the patent estate.


Sources

[1] USPTO Patent Document 10,053,489.
[2] Prior Art References cited in prosecution.
[3] Industry patent landscape reports.

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Details for Patent 10,053,489

Applicant Tradename Biologic Ingredient Dosage Form BLA Approval Date Patent No. Expiredate
Abbvie Inc. HUMIRA adalimumab Injection 125057 December 31, 2002 ⤷  Get Started Free 2034-06-03
Abbvie Inc. HUMIRA adalimumab Injection 125057 February 21, 2008 ⤷  Get Started Free 2034-06-03
Abbvie Inc. HUMIRA adalimumab Injection 125057 April 24, 2013 ⤷  Get Started Free 2034-06-03
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Approval Date >Patent No. >Expiredate

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