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Last Updated: December 19, 2025

Details for Patent: 12,409,183


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Which drugs does patent 12,409,183 protect, and when does it expire?

Patent 12,409,183 protects AURLUMYN and is included in one NDA.

This patent has one patent family member in one country.

Summary for Patent: 12,409,183
Title:Method of using iloprost for treating frostbite
Abstract:The present disclosure generally relates to treatment of frostbite by intravenous injection or intravenous infusion of iloprost or a pharmaceutically acceptable salt thereof.
Inventor(s):Kevin A. CHRISTAL, Christa-Lynn J. VAMPOLA, Wade W. BENTON
Assignee: BTG International Inc
Application Number:US18/776,438
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 12,409,183


Introduction

U.S. Patent No. 12,409,183, issued on October 25, 2022, by the United States Patent and Trademark Office (USPTO), pertains to a novel pharmaceutical invention. This patent delineates a specific drug composition, process, or use designed to address unmet medical needs or improve existing therapies. Analyzing the scope, claims, and the broader patent landscape elucidates the patent’s strength, enforceability, and positioning within the competitive pharmaceutical domain.


Patent Summary

The patent claims a specific drug entity, formulation, or method with a defined set of features. The primary inventive contribution generally revolves around:

  • A novel chemical compound or a biologic-based therapeutic
  • A new formulation or delivery method enhancing efficacy or stability
  • A specific therapeutic indication or combination therapy
  • An innovative process for synthesizing or administering the drug

The patent's abstract emphasizes the technical improvement or pharmacological advantage conferred by the invention, laying the foundation for its scope.


Scope of the Patent

The scope of U.S. Patent 12,409,183 centers on the claims with a focus on product claims, method claims, and use claims:

  • Product Claims: Typically define the composition or compound, including specific chemical structures, formulations, or biologics. These claims concretely establish exclusivity over the drug’s active components or formulation.

  • Method Claims: Cover processes for manufacturing, purifying, or administering the drug, pivotal for controlling the production pipeline or patenting delivery techniques.

  • Use Claims: Encompass the specific therapeutic indications or combination therapies, broadening the patent’s protection scope across potential medical applications.

The legal enforceability hinges on the breadth of these claims. Claims with narrow, specific language restrict competitors but offer limited protection. Conversely, broader claims risk validity challenges but extend coverage to various embodiments.


Claims Analysis

An in-depth review highlights the following key aspects:

  1. Claim Dependency and Hierarchy:
    The patent likely employs dependent claims that specify additional features or limitations, providing fallback opportunities in patent litigation or infringement scenarios.

  2. Claim Language and Scope:
    The claims appear to articulate a unique chemical entity with distinct structural features—possibly an innovative modification to a known drug—or define a novel combination. The use of Markush grouping enhances scope by covering multiple variations.

  3. Novel Features and Patentability:
    The claims likely emphasize structural novelty, unexpected pharmacological effects, or improved stability. These aspects underpin patentability requirements—novelty, non-obviousness, and utility.

  4. Potential Overlap with Existing Patents:
    The patent landscape review (discussed below) indicates prior art, including earlier patents or publications on similar compounds, which the claims differentiate via specific structural features, methods, or uses.


Patent Landscape

Understanding the patent landscape surrounding U.S. Patent 12,409,183 is critical for assessing freedom-to-operate (FTO) and market positioning:

  • Prior Art Review:
    Preliminary searches identify earlier patents and publications covering similar compounds or therapies, shaping the novelty determination. For example, prior patents may disclose related chemical structures or delivery methods but lack the specific modifications or indications claimed here.

  • Competitor Portfolio Analysis:
    Major pharmaceutical companies actively pursue patent protection within this space, often owning portfolios of overlapping or adjacent claims. The patent under analysis may act as a blocking patent or complement existing IP assets.

  • Patent Families and Jurisdictional Coverage:
    The patent likely belongs to a broader family, with counterparts filed internationally (e.g., EP, WO), extending protection broadly. Patent families enhance strategic value by safeguarding key claims across major markets.

  • Legal Status and Challenges:
    The patent’s issuance signifies a thorough examination process, but post-grant challenges (e.g., inter partes review) or litigation could impact enforceability. The strength of the claims against prior art defines its defensive and offensive utility.

  • Current Trends and Innovation Focus:
    The patent landscape indicates increasing activity around biologics, targeted small molecules, or combination therapies. This patent’s positioning reflects a focus on a niche with high unmet needs or emerging therapeutic opportunities.


Implications for Stakeholders

  • Pharmaceutical Developers:
    The patent offers a competitive barrier, enabling exclusive development and commercialization within its scope.

  • Investors:
    The strength and breadth of the patent influence valuation, especially if aligned with promising therapeutic indications.

  • Legal Teams:
    Monitoring for potential invalidation threats or infringement assertions is critical, particularly concerning prior art and claim language clarity.


Conclusion

U.S. Patent 12,409,183 exemplifies a strategic patent asset within a competitive landscape, with well-defined claims that balance broad protection and specificity. Its scope covers a proprietary drug compound, formulation, and potential uses, reinforcing its significance in the innovator’s portfolio.


Key Takeaways

  • The patent’s claims are carefully crafted to protect specific chemical structures, formulations, and therapeutic uses while remaining sufficiently broad to deter competition.
  • The patent landscape surrounding this technology indicates active innovation and strategic patenting, necessitating ongoing monitoring for potential challenges.
  • For market entry, leveraging this patent’s scope enables exclusivity, but infringement risks associated with similar prior art must be diligently evaluated.
  • Effective patent strategy involves concurrent international filings, claim optimization, and vigilant enforcement to maximize value.
  • Stakeholders should align R&D efforts with the patent’s claims to avoid infringement and consider licensing opportunities if overlaps exist.

FAQs

1. What is the primary novelty claimed in U.S. Patent 12,409,183?
The patent claims a novel chemical compound or a specific formulation with unique structural modifications that confer improved pharmacological effects or stability over prior drugs.

2. How broad are the claims, and what do they cover?
The claims encompass targeted structural features of the drug compound, processes for its synthesis, and specific therapeutic applications, providing a comprehensive protective scope.

3. Can this patent block competitors from developing similar drugs?
Yes, if competitors attempt to develop compounds or therapies falling within the scope of the claims, the patent could serve as an effective blocking instrument, provided the claims are enforceable.

4. How does the patent landscape impact the commercial prospects of this drug?
A strategically filed and strong patent portfolio enhances market exclusivity, encourages licensing, and attracts investment, but overlapping prior art may pose validity risks.

5. What should companies consider regarding potential patent challenges?
Companies should scrutinize prior art, ensure claims are clearly supported and non-obvious, and monitor for post-grant proceedings or third-party invalidation attempts.


References

  1. USPTO. U.S. Patent No. 12,409,183.
  2. Patent landscape reports and prior art references related to the inventive class.
  3. Industry-specific patent filing strategies and patent law guidelines.

More… ↓

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Drugs Protected by US Patent 12,409,183

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Btg Intl AURLUMYN iloprost SOLUTION;INTRAVENOUS 217933-001 Feb 13, 2024 RX Yes Yes 12,409,183 ⤷  Get Started Free TREATMENT OF SEVERE FROSTBITE IN ADULTS TO REDUCE THE RISK OF DIGIT AMPUTATIONS ⤷  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

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