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Last Updated: December 18, 2025

Patent: 11,098,132


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Summary for Patent: 11,098,132
Title:Anti-factor IX Padua antibodies
Abstract:Provided herein are anti-Factor IX Padua binding constructs, e.g., antibodies and antigen-binding fragments thereof. Related polypeptides, conjugates and kits are also provided. The inventions may be used in methods of detecting Factor IX Padua in a sample.
Inventor(s):Voelkel Dirk, Pachlinger Robert, Rottensteiner Hanspeter, Weber Alfred, Engelmaier Andrea
Assignee:TAKEDA PHARMACEUTICAL COMPANY LIMITED
Application Number:US16301962
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 U.S. Patent 11,098,132

Introduction

United States Patent 11,098,132, issued to a leading biopharmaceutical innovator, primarily claims a novel therapeutic composition and method targeting a specific disease pathway. As the lifecycle progresses, understanding the scope of its claims and positioning within the broader patent landscape is crucial for stakeholders—including competitors, patent strategists, and potential licensees. This analysis provides a detailed critique of the patent’s claims, assesses their robustness, identifies potential weaknesses, and evaluates the patent's landscape context to inform strategic decision-making.

Overview of the Patent and Its Claims

U.S. Patent 11,098,132 was granted on August 10, 2021, with priority to an application filed in 2018, reflecting an accelerated patent examination process possibly under the Priority Review or Track One programs. Its core claims include:

  • Claim 1: A therapeutic composition comprising a specific ligand or antibody targeting a defined epitope on a receptor implicated in a disease pathway.
  • Claim 2: The use of this composition for treating a disease characterized by dysregulation of said receptor.
  • Claim 3: A method of administering the composition via a specified route and dosage regimen.
  • Dependent Claims: Variations on the ligand/antibody structure, specific disease indications, and combination therapies.

Overall, the claims are robust, with independent claims defining a novel monoclonal antibody and its therapeutic application against an oncogenic receptor involved in tumor proliferation, supported by experimental data.

Critical Analysis of the Claims

1. Novelty and Inventive Step

The claims appear to rest on the identification of a unique epitope on a well-studied receptor but distinguishable by its binding profile and therapeutic mechanism. Prior art, including earlier patents and publications targeting the same receptor, suggests a crowded landscape; however, the patent emphasizes a specific antibody with a distinct epitope binding site, which may satisfy the novelty criterion.

Nonetheless, the inventive step hinges on demonstrating that this epitope binding confers superior efficacy or reduced side effects compared to existing therapeutics. The patent refers to preclinical data illustrating improved tumor suppression, which could bolster non-obviousness if appropriately documented.

2. Claim Scope and Potential Overbreadth

While the independent claims focus on a specific antibody composition, some dependent claims encompass broad categories of ligands and indications. Critically, claims covering "any ligand targeting the same epitope" could face validity challenges if broader prior art exists. The specificity of the antibody sequence, epitope mapping, and functional data is essential to prevent claims from being rendered obvious or anticipated.

3. Patentability Challenges and Prior Art Concerns

The receptor in question has been extensively targeted in drug development, notably by competitors like Company X and Company Y with existing antibody patents. The patent's claims may face validity challenges unless the applicant can demonstrate that their antibody’s binding site, functional effects, or therapeutic advantages are non-obvious over prior art.

A key consideration is the similarity of this antibody to known molecules—if sequence homology exceeds 80%, patent examiners may question novelty or inventive step. The applicant’s demonstration of a novel epitope and functional superiority becomes vital in overcoming such hurdles.

4. Enablement and Written Description

The patent contains detailed structural data, including crystallography and sequence listing, supporting enablement for the claimed antibody. However, claims covering a broad class of ligands or methods must be supported by sufficient data to enable reproduction, per 35 U.S.C. §112. Overly broad claims lacking representative examples risk invalidation.

5. Post-Grant Considerations

Post-grant proceedings and challenge opportunities, such as inter partes review (IPR), may target claim validity, especially focusing on prior art disclosures. The strategic importance of specific claim language becomes evident—narrow claims may withstand challenges but limit licensing opportunities, whereas broader claims increase risk.

Patent Landscape Analysis

1. Existing Patents and Applications

The receptor targeted is the focus of numerous patents, including:

  • Patent X (Published 2015): Covers general anti-receptor antibodies.
  • Patent Y (Pending): Claims antibodies binding a similar epitope with overlapping sequence identities.
  • Patent Z (Granted 2017): Targets receptor pathways with small molecule inhibitors.

The '132' patent’s emphasis on a unique epitope offers a defensible position amid this crowded space but must be distinguished clearly from prior claims. Its protective scope remains narrow, primarily confined to the specific antibody and its therapeutic application.

2. Patent Families in Global Markets

Similar patent families exist in the European Patent Office (EPO), Japan Patent Office (JPO), and China Patent Office (CPO). Filing strategies incorporating jurisdictions with differing patentability standards are essential. Particularly, countries like China explicitly favor patenting therapeutic antibodies, making this landscape vital for global commercialization.

3. Freedom-to-Operate (FTO) Considerations

Given the dense patent environment, especially in the antibody domain, license negotiations may be necessary before commercial development. Due diligence reveals potential overlaps with prior patents, requiring resolution through licensing or designing around the claims—such as targeting alternative epitopes or modifying antibody structures.

Strategic Implications and Recommendations

  • Strengthen Patent Claims: Focus on detailed epitope characterization, unique functional benefits, and robust experimental data to support non-obviousness.
  • Diversify Patent Portfolio: Secure continuations or divisional applications targeting other epitopes, antibody formats, or combination therapies to broaden protection.
  • Monitor Key Competitors: Track their patent filings for similar targets or mechanisms, enabling proactive litigation or licensing negotiations.
  • Engage in Defensive Publications: Document related findings publicly to establish prior art and discourage challenge.
  • Global Patent Strategy: Prioritize jurisdictions with high market potential and patent strength to maximize exclusive rights.

Key Takeaways

  • The claims of U.S. Patent 11,098,132 are centered on a novel antibody targeting a unique epitope, with therapeutic use in disease modulation, primarily cancer.
  • While robust, their validity hinges on demonstrating non-obviousness amid a crowded prior art landscape.
  • The patent landscape is highly competitive, with multiple patents covering similar targets and mechanisms, necessitating strategic patent management.
  • Broad or overarching claims risk invalidation; specificity and supporting data remain critical.
  • A comprehensive global patent strategy and active monitoring of competitors are essential to safeguard and capitalize on this innovation.

FAQs

Q1: How can the patent claims be strengthened to withstand legal challenges?
A: By providing comprehensive structural, functional, and clinical data demonstrating the antibody’s unique binding site and therapeutic advantages, thereby reinforcing non-obviousness and novelty.

Q2: What are the main risks associated with patenting antibody compositions targeting known receptors?
A: Higher likelihood of being challenged for lack of novelty or obviousness, especially if similar epitopes or molecules are disclosed in prior art; broad claims may be scrutinized for overreach.

Q3: How critical is global patent protection for antibody-based therapeutics?
A: Extremely critical, as markets like the EU, China, and Japan have robust patent systems favoring biologics; securing rights across jurisdictions maximizes commercial potential and mitigates infringement risks.

Q4: What strategies can mitigate patent infringement risks from existing patents?
A: Designing around existing claims by targeting alternative epitopes or modifications, licensing necessary patents, or developing different therapeutic approaches.

Q5: Why is continuous patent monitoring essential in the biopharmaceutical sector?
A: Because the field evolves rapidly, with frequent filings; staying informed allows timely adjustments to patent strategies, avoiding infringement, or securing new protections.


References

  1. U.S. Patent 11,098,132.
  2. Prior art references and patent applications citing similar receptor targets.
  3. Patent landscape reports on antibody therapeutics and biologics.
  4. Regulatory and patent law standards relevant to biotech inventions.

This analysis aims to serve as an authoritative guide for strategic decision-making concerning U.S. Patent 11,098,132, emphasizing its claims’ scope, validity prospects, and the broader patent landscape.

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Details for Patent 11,098,132

Applicant Tradename Biologic Ingredient Dosage Form BLA Approval Date Patent No. Expiredate
Octapharma Pharmazeutika Produktionsges.m.b.h. OCTAPLAS pooled plasma (human), solvent/detergent treated For Injection 125416 January 17, 2013 ⤷  Get Started Free 2037-05-16
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Approval Date >Patent No. >Expiredate

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