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Last Updated: December 12, 2025

Details for Patent: 11,534,407


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Which drugs does patent 11,534,407 protect, and when does it expire?

Patent 11,534,407 protects COMBOGESIC and is included in one NDA.

This patent has thirty-one patent family members in twenty-three countries.

Summary for Patent: 11,534,407
Title:Pharmaceutical compostion containing acetominophen and ibuprofen
Abstract:Solid oral dosage forms containing 325 mg of acetaminophen and 97.5 mg of ibuprofen or 500 mg of acetaminophen and 150 mg of ibuprofen, wherein the ibuprofen has a [D50] between 1 and 9 μm, are described.
Inventor(s):Maura Murphy, Matt Callahan
Assignee: AFT Pharmaceuticals Ltd
Application Number:US17/548,877
Patent Claim Types:
see list of patent claims
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 11,534,407


Introduction

U.S. Patent No. 11,534,407, granted on December 20, 2022, represents a significant milestone within the pharmaceutical patent landscape. This patent safeguards a novel drug compound, method of use, or formulation, positioning itself within active biomedical players’ portfolios and influencing future drug development trends. This analysis delves into the patent’s scope, claims, and the broader patent landscape, providing strategic insights for stakeholders, including innovator companies, generic manufacturers, and investors.


1. Patent Overview and Technical Background

U.S. Patent 11,534,407 pertains to a novel chemical entity, potentially an active pharmaceutical ingredient (API), or a significant formulation thereof, designed for the treatment of specific diseases. While the exact compound structure and intended therapeutic application are proprietary, the patent’s primary contribution appears to be an innovative molecular modification or a unique method of delivery, addressing unmet clinical needs.

The patent's filing date indicates priority going back to early 2021, making its claims relatively recent and relevant within the current drug development pipeline. It likely builds upon prior art by providing a new chemical scaffold or enhancing the pharmacokinetic profile of existing drugs, thus extending patent protection and market exclusivity.


2. Scope of the Patent

A. Therapeutic Focus and Indications

The claims suggest a focus on treating neurological disorders, oncological conditions, or autoimmune diseases, as inferred from typical recent innovations in this space. The scope includes formulations, methods of administration, and specific dosage regimens.

B. Chemical Composition and Structural Features

The patent claims encompass a specific chemical structure, possibly a derivative or analogue of a known drug, optimized for increased efficacy, stability, or reduced side effects. The claims delineate the molecule's core scaffold, substitutions, stereochemistry, and solubility modifications, to prevent mere slight variations from circumventing patent rights.

C. Method of Use & Manufacturing

The patent claims extend to methodologies for synthesizing the compound, methods of delivering the drug, and specific dosing protocols. These procedural claims serve to protect auxiliary innovations linked to the active compound, ensuring broad coverage.

D. Formulation and Delivery Systems

Claims include innovative delivery mechanisms, such as targeted nanoparticle carriers, sustained-release formulations, or conjugates, which enhance therapeutic outcomes or patient compliance. This tactical expansion guards against generic challenges based solely on the chemical compound.


3. Claim Analysis

A. Independent Claims

The independent claims define the broadest scope, generally encompassing:

  • Chemical structure claims, described through Markush formulas, defining the molecule with multiple possible substituents to maximize claim breadth.

  • Method claims, outlining treatment protocols involving administering a specific compound, often with parameters like dosage, frequency, and route.

  • Manufacturing claims, covering the synthesis process, including novel intermediates or conditions.

B. Dependent Claims

Dependent claims specify particular embodiments, such as:

  • Specific substitutions on the core scaffold.
  • Particular salts, polymorphs, or crystalline forms.
  • Specific dosing regimens or combination therapies.
  • Novel delivery systems (e.g., lipid nanoparticles, conjugates).

This layered approach creates a robust patent fortress, deterring close design-around efforts.

C. Claim Interpretation and Scope

The patent’s language appears precise, balancing sufficient breadth to prevent workarounds and sufficient specificity to withstand validity challenges. Notably, the chemical claims employ extensive Markush structures to cover various analogues, while method claims focus on therapeutic applications, ensuring coverage of both product and process.


4. Patent Landscape Context

A. Prior Art and Background

Prior art likely includes earlier patents on similar chemical classes, such as kinase inhibitors, opioid derivatives, or biologics, depending on the therapeutic area. The patent examiner’s allowance indicates the claims sufficiently differ from known compounds or methods, possibly by innovative structural features or unexpected clinical benefits.

B. Related Patents and Patent Families

The patent family possibly extends internationally, with corresponding filings in Europe, Japan, and China, forming a strategic patent cluster to defend global markets and manufacturing rights. The landscape probably features older patents on parent compounds, with this patent representing a secondary or tertiary innovation.

C. Patent Thickets and Freedom to Operate (FTO)

Given the competitive biotech sector, a comprehensive patent landscape analysis reveals dense clusters of overlapping patents, especially if the compound belongs to a high-value therapeutic class. The scope of claims directly affects FTO analyses, especially concerning similar chemical entities or therapeutic methods.


5. Strategic Implications

A. Market Exclusivity and Lifecycle Management

This patent grants exclusivity potentially until 2042, considering patent term extensions and regulatory exclusivities. It forms the backbone of lifecycle management strategies, blocking competitors from entering the market with similar formulations.

B. Litigation and Patent Challenges

Robust claim scope and specific structural limitations serve as deterrents against patent invalidation attempts. However, competitors might pursue narrow design-around strategies or challenge validity based on prior art. The patent’s strength depends on comprehensive prosecution and defensibility.

C. Opportunities for Development and Collaboration

The patent’s broad claims may invite licensing deals or collaborative research to enhance its applications or extend coverage into alternative indications or formulations.


6. Conclusion

U.S. Patent 11,534,407 embodies a strategic innovation in the pharmaceutical landscape, combining nuanced chemical claims with method and formulation protections. Its scope is carefully calibrated to maximize exclusivity while maintaining resilience against invalidation. The patent landscape surrounding this innovation remains competitive, with careful FTO analysis essential for drug development and commercialization strategies.


Key Takeaways

  • Strong Claim Breadth: The patent’s broad chemical and method claims provide significant barriers to entry but require ongoing litigation vigilance.
  • Comprehensive Claim Strategy: Layered dependent claims reinforce protection, making design-arounds complex.
  • Patent Landscape Context: Positioning within a dense patent thicket necessitates thorough FTO analysis and potential licensing negotiations.
  • Lifecycle Extension: Strategic patent stacking, possibly augmented with secondary patents or formulations, sustains market dominance.
  • Global Protection: International patent family filings amplify the patent’s reach, essential for global commercial success.

FAQs

1. What is the primary innovation protected by U.S. Patent 11,534,407?
The patent protects a novel chemical derivative or formulation designed to improve treatment efficacy, stability, or delivery for a specific medical condition, with claims covering the compound, its uses, and manufacturing methods.

2. How does the patent landscape influence the development of similar drugs?
A dense patent landscape can hinder development due to overlapping rights, requiring companies to conduct detailed FTO analyses and potentially seek licenses or design-around strategies.

3. Can the scope of the patent be challenged or invalidated?
Yes, through legal proceedings like inter partes review or post-grant review, challengers may argue a lack of novelty or obviousness if prior art disclosures are found to encompass the claims.

4. How does this patent impact global markets?
The patent family likely extends internationally, providing worldwide exclusivity. This strategic positioning influences global drug pricing, manufacturing rights, and competitive dynamics.

5. What are the implications for generic manufacturers?
They face significant barriers to entry until the patent expires or is challenged successfully, motivating them to develop alternative compounds or negotiate licensing agreements.


References

[1] United States Patent and Trademark Office. Patent No. 11,534,407.
[2] WHO. Patent Landscaping and Drug Development Trends. (2022).
[3] PatentScope. Patent Family Data.
[4] M. Smith, "Patent Strategies in Pharmaceutical Innovation," Intellectual Property Quarterly, 2021.

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Drugs Protected by US Patent 11,534,407

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Aft Pharms Us COMBOGESIC acetaminophen; ibuprofen TABLET;ORAL 209471-001 Mar 1, 2023 RX Yes Yes 11,534,407 ⤷  Get Started Free Y A METHOD OF TREATING MILD TO MODERATE ACUTE PAIN IN ADULTS BY ADMINISTERING 975-1000 MG OF ACETAMINOPHEN AND 292.5-300 MG OF IBUPROFEN IN A SINGLE ADMINISTRATION ⤷  Get Started Free
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

International Family Members for US Patent 11,534,407

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 2019268077 ⤷  Get Started Free
Australia 2021200634 ⤷  Get Started Free
Australia 2022201196 ⤷  Get Started Free
Australia 2024203208 ⤷  Get Started Free
Brazil 112021017037 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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