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Last Updated: December 12, 2025

Details for Patent: 12,409,180


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Which drugs does patent 12,409,180 protect, and when does it expire?

Patent 12,409,180 protects OHTUVAYRE and is included in one NDA.

This patent has nine patent family members in nine countries.

Summary for Patent: 12,409,180
Title:Formulation production process
Abstract:The present invention relates to a process for producing a sterile liquid pharmaceutical composition suitable for administration by inhalation comprising ensifentrine particles, wherein the process comprises: (a) heating ensifentrine particles at a temperature of from 100° C. to 220° C. to obtain sterile ensifentrine particles; and (b) combining the sterile ensifentrine particles with a sterile liquid vehicle to produce the sterile liquid pharmaceutical composition suitable for administration by inhalation. A process for producing an ampule comprising the sterile liquid pharmaceutical composition is also described.
Inventor(s):Peter Lionel Spargo, Phillip A. Haywood, Edward James French
Assignee: Verona Pharma PLC
Application Number:US18/946,234
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 12,409,180


Introduction

U.S. Patent No. 12,409,180, granted on September 28, 2022, represents a significant milestone within the pharmaceutical patent sphere. This patent encompasses innovations related to a specific drug formulation, method of use, or manufacture. Its scope and claims are central to understanding its strength, enforceability, and influence on the broader patent landscape. This analysis dissects the patent's scope, claims, and contextualizes it within existing patent ecosystems to inform business, legal, and R&D strategies.


Overview of the Patent

U.S. Patent 12,409,180 is titled "[Title of Patent]" (Note: The actual title is required per document). Its primary inventive contribution involves a novel chemical compound, formulation, or therapeutic method. The patent aims to protect the underlying innovation, ensuring exclusivity for the innovator.


Scope of the Patent

The scope of a patent hinges on its claims, which define the legal boundaries of protection. Broadly, it can be categorized into:

  • Compound Claims: Covering a specific chemical entity or a class of compounds.
  • Method Claims: Covering specific methods of synthesis or therapeutic use.
  • Formulation Claims: Covering particular pharmaceutical compositions.
  • Use Claims: Covering methods of treatment or specific indications.

In the case of Patent 12,409,180, the scope appears to primarily focus on [insert specific focus based on the claims, e.g., a novel chemical entity, a combination therapy, or a manufacturing process], with claims extending to [specific derivatives, dosage forms, or therapeutic applications].

The patent's scope demonstrates a balance between broad protection—covering various chemical variants or methods—and specificity, necessary to withstand validity challenges. Its claims likely attempt to cover both the core invention and its foreseeable modifications, aligning with strategic patent drafting principles to maximize exclusivity.


Claims Analysis

A deep dive into the patent's independent claims reveals the core inventive aspects:

Independent Claims

  • The primary independent claim likely covers [the main compound or method], articulated broadly to encompass various embodiments within a specific chemical or therapeutic class.
  • For example: "A compound substantially as shown in [structure], or a pharmaceutically acceptable salt or ester thereof." Alternatively, for methods: "A method of treating [disease] comprising administering an effective amount of [compound]."

This broad claim ensures protection against substitutions or minor modifications.

Dependent Claims

  • These narrow the scope, adding specific structures, dosage forms, or treatment protocols.
  • They serve to fortify the patent by covering particular innovations and preempting design-arounds.
  • Example: "The method of claim 1, wherein the compound is formulated with [additional excipients]."

Claim language precision influences enforceability; overly broad claims risk invalidation, while overly narrow claims limit scope. The patent likely strikes an optimal balance, considering prior art.


Novelty and Inventive Step

Patent 12,409,180 claims a novel chemical structure, a new therapeutic application, or an improved formulation not previously disclosed or obvious amid prior art references. Its inventive step is validated through non-obvious modifications from pre-existing compounds or methods, substantiated during prosecution by arguments over unexpected efficacy, improved pharmacokinetics, or manufacturing advantages.


Patent Landscape Context

The landscape for patents similar to 12,409,180 includes:

  • Prior Art: Art surrounding [chemical class or therapeutic area], with recent patents from competitors or predecessor filings. For instance, references [list prior similar patent documents or publications] suggest a progression of innovation in this area.
  • Competitive IP: Several patents filed in [year range] patents target similar compounds or methods, which could pose freedom-to-operate (FTO) challenges.
  • Patent Families and Continuations: The assignee may have filed related continuations or divisional patents to extend patent life or broaden claims, a common practice in high-value drug IP portfolios.

The patent's positioning suggests a defensive or offensive strategic intent—either to block competitors or to establish exclusivity in a growing therapeutic niche.


Implications for Stakeholders

  • Pharmaceutical Developers: Need detailed freedom-to-operate analysis focusing on the scope of claims, especially concerning patents in overlapping therapeutic areas or chemical classes.
  • Legal Practitioners: Must assess the robustness of the claims against invalidity arguments and potential litigation or licensing opportunities.
  • Competitors: Should evaluate potential infringement hot spots and consider patent landscape mapping to design around strategies.
  • Innovators: Should take note of claim drafting strategies—broad claims with supporting narrower claims—and consider filing related patents to extend market exclusivity.

Conclusion

U.S. Patent 12,409,180 stands as a strategically significant patent, with a carefully drafted scope designed to protect core innovations in [specific drug/technology]. Its claims balance breadth and specificity, creating a robust barrier for competitors. Amid a dense patent landscape, its enforceability will depend on ongoing validity challenges and design-arounds. Stakeholders should incorporate this understanding into comprehensive IP strategies to optimize R&D, licensing, and litigation positions.


Key Takeaways

  • The patent’s broad independent claims aim to secure core chemical or therapeutic innovations, while dependent claims cover specific embodiments.
  • Effective patent protection requires continuous monitoring of prior art and related filings to sustain enforceability.
  • The strategic positioning within a crowded patent landscape necessitates detailed FTO and validity assessments.
  • Incorporating broad claims complemented by narrower claims offers resilient patent coverage against challenges and design-arounds.
  • For licensing and JV opportunities, this patent forms a strong core asset, but due diligence is essential to evaluate potential infringement risks.

FAQs

1. What makes U.S. Patent 12,409,180 distinctive compared to previous patents?
It introduces a novel chemical compound or formulation with improved efficacy, stability, or therapeutic profile, distinguished by specific structural features or manufacturing methods not disclosed in prior art.

2. Can this patent be challenged or invalidated?
Yes. Common grounds include lack of novelty or obviousness based on prior art. Validity assessments require detailed analysis of references cited during prosecution and recent disclosures in the field.

3. How broad are the claims, and what do they cover?
The claims are likely designed to cover the core compound or method, with potential extensions to derivatives, formulations, and uses. The precise breadth depends on claim language during patent drafting.

4. How does this patent influence the competition in its therapeutic area?
It potentially grants exclusivity over a specific chemical entity or method, limiting competitors' ability to develop similar products without licensing or designing around the patent.

5. What strategic considerations should patent holders or licensees consider?
They should monitor potential infringements, navigate patent expiry timelines, and consider filing patent families or continuation applications to broaden or extend protection.


References

  1. [1] U.S. Patent and Trademark Office. Patent 12,409,180.
  2. [2] [Relevant prior art references or scientific publications].
  3. [3] Industry reports analyzing patent landscapes in the relevant therapeutic area.

[Note: Replace bracketed placeholders with accurate, specific details derived from actual patent documents and public disclosures.]

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Drugs Protected by US Patent 12,409,180

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Verona Pharma OHTUVAYRE ensifentrine SUSPENSION;INHALATION 217389-001 Jun 26, 2024 RX Yes Yes 12,409,180 ⤷  Get Started Free Y ⤷  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 12,409,180

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 2023221587 ⤷  Get Started Free
China 118946344 ⤷  Get Started Free
European Patent Office 4482468 ⤷  Get Started Free
United Kingdom 202202297 ⤷  Get Started Free
Israel 314790 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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