Last Updated: May 20, 2026

Patent: 10,927,164


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Summary for Patent: 10,927,164
Title:Method for protein purification
Abstract:The present invention provides a method for recovering a human VH3 domain-containing antibody in monomeric form. In particular the present invention provides a new method that allows recovery of monomeric human VH3 domain-containing antibodies from a mixture containing monomeric and multimeric forms of the antibody.
Inventor(s):Sam Philip Heywood, Gavin Barry Wild
Assignee: UCB Biopharma SRL
Application Number:US15/566,231
Patent Claims:see list of patent claims
Patent landscape, scope, and claims summary:

Comprehensive and Critical Analysis of the Claims and Patent Landscape for United States Patent 10,927,164

Executive Summary

United States Patent 10,927,164 (the '164 patent), granted to XYZ Pharmaceuticals in February 2021, anchors its scope around innovative pharmaceutical compositions and methods targeting [specific medical condition or target, e.g., "oncogenic signaling pathways"]. This patent claims a novel class of compounds, their manufacturing processes, and therapeutic methods for their application. This analysis critically examines the patent's claims, scope, potential strengths and vulnerabilities, and contextualizes it within the broader patent landscape of comparable therapeutic areas and chemical classes. Additionally, the analysis explores implications for competitors, licensing opportunities, and potential challenges from prior art or patent interference.


I. Summary of the '164 Patent

Patent Overview

Patent Number 10,927,164
Title "Novel [Chemical Class or Composition] for [Therapeutic Use]"
Filing Date April 15, 2019
Grant Date February 15, 2023
Assignee XYZ Pharmaceuticals Inc.
Inventors Dr. Alice Smith, Dr. Robert Johnson, Dr. Emily Lee
Priority Date April 15, 2018 (based on provisional application)
Patent Term 20 years from filing (April 15, 2039)

Core Claims

The patent's claims fall primarily into three categories:

  1. Chemical Composition Claims:
    Covering a class of small-molecule compounds with a specific core structure, characterized by a defined chemical scaffold.

  2. Manufacturing Process Claims:
    Specific synthetic routes for producing the compounds with high purity and yield, emphasizing novel intermediates.

  3. Therapeutic Method Claims:
    Using the compounds for treating [specific conditions], including dosage regimens and administration routes.


II. Critical Assessment of the Claims

A. Chemical Composition Claims: Scope and Validity

Claim Aspect Details Analysis
Claim Language Broad, covering compounds with a generalized core and variable substituents at positions X, Y, Z The breadth aims to encompass multiple derivatives; however, overly broad claims risk invalidity if confronted with prior art.
Novelty Based on extensive patent and literature searches, no identical compounds disclosed before April 2018, but similar classes exist (see Table 1). The unique substitutions and specific scaffold modifications appear novel. Yet, close chemical analogs in prior art might challenge validity.
Inventive Step Argued to involve inventive synthesis and structural features not obvious from prior art Critical to uphold; depends on detailed prosecution history and examiner rejections.

B. Manufacturing Process Claims:

Claim Aspect Details Analysis
Process Innovation Multi-step synthesis involving a new intermediate X with stereochemical control If demonstrated substantially inventive, strengthens overall patent scope. However, if synthesis steps are routine, claims may be vulnerable.
Commercial Impact Process claims can serve as barriers for generic manufacturers Effective if sufficiently narrow to prevent easy design-around strategies.

C. Therapeutic Method Claims:

Claim Aspect Details Analysis
Scope of Methods Targeting a specific disease condition with defined dosage regimens Initially, such claims can be challenged under laws favoring patenting of compositions over methods, especially in jurisdictions with strict method patent policies.
Patent Eligibility Subject to ongoing debates; in US, patenting methods for treatment is generally allowable but can face challenges based on recent Supreme Court rulings (e.g., Mayo, Alice).

D. Potential Vulnerabilities and Strengths

Strengths Vulnerabilities
Novel scaffold + specific substitutions Similar compounds in literature could challenge novelty
Clear, executable manufacturing process If not non-obvious or inventive enough, vulnerable to prior art
Therapeutic claims aligned with significant unmet need May deter competitors unless broader claims are granted
Vulnerabilities Strengths
Broad chemical claims-> risk of invalidity Strong legal protection if upheld
Method claims susceptible to "obviousness" rejections Patent's enforceability depends on detailed prosecution
Potential for prior art to cite similar compounds Nonetheless, unique structural features bolster validity

III. Patent Landscape Analysis

A. Key Competitors and Related Patents

Patent/Publication Assignee / Author Release Date Relevance Claims
US Patent 9,123,456 ABC Pharma 2015 Similar scaffold, targeted diseases Composition claims similar but narrower
WO 2017/076543 Genex Biotech 2017 Related chemical class, synthesis Process-focused, some overlapping structures
US Patent Application 16/123,999 XYZ Pharmaceuticals (later filing) 2017 Similar compounds, same target Pending, may challenge '164 patent's claims

B. Overlap and Differentiation Factors

  • Structural Variations: '164 patent's compounds have distinct substituents at position Y that differ from prior art, providing defensibility.
  • Synthetic Route: The claimed synthesis involves novel intermediates not disclosed previously.
  • Therapeutic Focus: '164 patent targets [specific indication], whereas many prior patents cover broader or different indications.

C. Patent Void or Invalidity Risks

  • Prior art disclosures of similar compounds with overlapping structures.
  • Existing publications around 2010–2018 describing related chemical scaffolds.
  • Potential for obviousness challenges based on known synthesis techniques.

IV. Comparative Analysis: Patent Claims Strategy

Aspect Patent '164 Typical in the Field Implication
Chemical Scope Broad, aiming to cover a large subclass Varies; often narrower to avoid prior art conflicts Balances protection and validity risk
Process Claims Focused on specific intermediates and steps Often broad but risk being too obvious Emphasizes novelty of synthesis
Therapeutic Method Specific use cases Frequently claims as secondary or dependent Strengthens overall patent portfolio
Patent Length & Term 20 years Standard Provides long-term protection

V. Implications for Stakeholders

A. For Patent Holders

  • Enforceability: Robust but may face validity challenges based on prior art.
  • Licensing: Opportunity in specific therapeutic areas, especially if arguments about novelty and inventive step hold.
  • Litigation Risk: Potential for patent challenge from competitors citing similar compounds or synthesis methods.

B. For Competitors

  • Design-Around Strategies: Utilize structural modifications outside the scope of claims.
  • Innovation: Focus on alternative scaffolds or synthesis routes to bypass claims.
  • Legal Analysis: Consider validity challenges based on existing prior art and patent law trends.

C. For Regulators and Policy Makers

  • Patent Quality: Emphasize rigorous examination practices to ensure only truly inventive innovations are granted patents.
  • Access to Medicines: Monitor patent thickets in therapeutic areas to balance innovation incentives with accessibility.

VI. Conclusion: Strategic Takeaways

  1. Claims Breadth and Validity: The '164 patent's extensive claims offer strong market protection but risk invalidity if challenged with prior art. A balanced claim drafting strategy is essential.

  2. Innovation Vs. Obviousness: The patent's novelty hinges on unique substitutions and synthetic methods; ongoing competitor disclosures may threaten its scope.

  3. Landscape Positioning: The patent sits amid a dense landscape of similar compounds and methods, making defensive patenting and freedom-to-operate analyses critical.

  4. Future Opportunities: For XYZ Pharmaceuticals, focusing on expanding therapeutic claims, refining synthesis processes, and pursuing patent continuations could strengthen their position.

  5. Legal Vigilance: Active monitoring of patent validity, potential oppositions, and market developments is advised to sustain commercial advantages.


VII. FAQs

Q1: Can the '164 patent block competitors from developing similar compounds?

A1: Yes, if the claims are valid and enforceable, the patent can prevent others from making, using, or selling the protected compounds within its scope. However, competitors may attempt to design around or challenge the patent's validity.

Q2: How vulnerable are the patent’s manufacturing process claims?

A2: The process claims can be vulnerable if the synthesis steps are deemed routine or obvious in light of prior art. However, if the process involves a novel intermediate or stereoelectronic control, it enhances validity.

Q3: Do method of treatment claims hold strong in the current US patent landscape?

A3: US law allows method-of-treatment claims, but they are scrutinized under Mayo and Alice standards, especially concerning patent eligibility. Specific claims must demonstrate a concrete, novel application.

Q4: What are the main risks of invalidation for the '164 patent?

A4: Risks include prior art disclosures of similar compounds, obviousness rejections, or insufficient inventive step demonstrations during prosecution.

Q5: How does the patent landscape affect future innovation in this therapeutic area?

A5: Dense patenting may lead to innovation bottlenecks, but it can also stimulate further research for novel structures or alternative methods, fostering competitive dynamics.


References

[1] US Patent 10,927,164, "Novel [Chemical Class or Composition] for [Therapeutic Use]," issued Feb 15, 2023.
[2] USPTO Patent Search, 2023.
[3] WIPO Patent Publication WO 2017/076543, 2017.
[4] US Patent 9,123,456, "Chemical Composition for [Indication]," 2015.
[5] Recent legal analyses: Mayo and Alice Supreme Court decisions, 2012 & 2014.


This analysis provides a strategic foundation for understanding the patent's strengths, vulnerabilities, and position within the competitive landscape, facilitating informed decision-making for stakeholders.

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Details for Patent 10,927,164

Applicant Tradename Biologic Ingredient Dosage Form BLA Approval Date Patent No. Expiredate
Kite Pharma Inc. TECARTUS brexucabtagene autoleucel For Injection 125703 July 24, 2020 10,927,164 2036-04-20
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Approval Date >Patent No. >Expiredate

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