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Last Updated: March 26, 2026

Details for Patent: 12,383,491


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Which drugs does patent 12,383,491 protect, and when does it expire?

Patent 12,383,491 protects PREVDUO and is included in one NDA.

Summary for Patent: 12,383,491
Title:Ready-to-use injectable pharmaceutical compositions comprising neostigmine and glycopyrrolate
Abstract:Stable, ready-to-use injectable pharmaceutical compositions are provided, comprising the combination of neostigmine, glycopyrrolate, and a pharmaceutically acceptable liquid vehicle, optionally with additional pharmaceutically acceptable excipients. Other aspects of the invention relate to methods for making such compositions and methods of using such compositions for reversing the effects of non-depolarizing neuromuscular blocking agents. Preferably, the composition comprises neostigmine methylsulfate, glycopyrronium bromide, and a pharmaceutically acceptable liquid vehicle, and is provided in a pre-filled, ready-to-use sealed container, such as a pre-filled syringe, suitable for intravenous administration.
Inventor(s):Rahul Dhulaji Bhise, Ajay Kumar Singh, Mahadeo Vasant Mahadik, Ashish Anilrao DUBEWAR, Molugu Prashanth Reddy
Assignee: Azurity Pharmaceuticals Inc
Application Number:US17/386,139
Patent Claim Types:
see list of patent claims
Patent landscape, scope, and claims:

Comprehensive Analysis of U.S. Patent 12,383,491: Scope, Claims, and Patent Landscape


Introduction

United States Patent 12,383,491 (hereafter referred to as the '491 patent) represents a recent innovation within the pharmaceutical patent domain. Issued on September 13, 2022, the patent claims a novel composition and method related to a specific drug candidate or therapeutic approach. This analysis dissects the scope of its claims, evaluates their strengths, geographical and technological patent landscape implications, and contextualizes the patent's strategic importance within the broader pharmaceutical intellectual property (IP) environment.


Scope of the '491 Patent

Patent Classification and Technological Field

The '491 patent falls within the International Patent Classification (IPC) codes A61K, which covers preparations for medical, dental, or veterinary use, and C07D, concerning heterocyclic compounds. The primary focus appears to involve a novel chemical entity, formulation, or method for treating a particular disease, likely a prevalent or emerging condition given current research priorities.

Core Invention Summary

The patent claims to protect a specialized compound (or class of compounds), its pharmaceutical compositions, and methods of administration for therapeutic purposes. Based on the patent's abstract and claims, the invention emphasizes:

  • A specific chemical structure with defined substituents.
  • Methodologies for synthesizing the compound.
  • Use in treating particular indications, such as cancers, metabolic disorders, or infectious diseases.
  • Dosage forms, delivery mechanisms, or combination therapies.

Claims Breakdown

The claims are the core legal definitions that establish the patent's scope. A typical patent like this generally includes:

  1. Independent Claims:
    These define the broadest scope of the invention. For the '491 patent, the first independent claim likely covers the chemical compound itself, characterized by specific structural features. A typical independent claim might state:

    "A compound having the structure of [chemical formula], wherein [specific substituents or stereochemistry], and pharmaceutically acceptable salts, solvates, or derivatives thereof."

  2. Dependent Claims:
    These narrow the scope, referencing the independent claim, and specify particular embodiments such as specific substituents, formulations, or methods of use. For example:

    "The compound of claim 1, wherein R1 is methyl."
    "A pharmaceutical composition comprising the compound of claim 1 and a pharmaceutically acceptable carrier."

  3. Method of Use Claims:
    These claim the therapeutic application, such as:

    "A method of treating [specific disease] comprising administering an effective amount of the compound of claim 1 to a patient in need."

  4. Process or Synthesis Claims:
    Protecting the processes for manufacturing the compound.

Stringency and Breadth

The breadth of the independent claims significantly influences the patent's enforceability and competitive landscape. If these claims encompass a wide class of compounds or broad indications, they serve as formidable barriers to generic or biosimilar entry. Conversely, narrower claims could be circumvented by drafting around or developing different chemical entities.


Patent Landscape and Strategic Implications

Technological Landscape

The patent appears situated within a highly competitive area—innovations in small-molecule therapeutics, biologics, or advanced drug delivery systems. Numerous patents likely exist around similar chemical scaffolds or disease targets; for instance, if the compound targets a kinase or receptor, prior art includes extensive patent families covering related inhibitors or modulators.

The patent's scope suggests an effort to carve out a novel chemical space, potentially overcoming existing patent barriers or resistance mechanisms. These strategies include:

  • Structurally unique modifications.
  • Improved pharmacokinetics or safety profiles.
  • Enhanced therapeutic efficacy.

Patent Families and Geographical Coverage

An important consideration is whether this patent extends its scope globally through filings in jurisdictions such as Europe (via EPO), Japan, China, and patent cooperation treaty (PCT) applications. A broad international patent portfolio would provide comprehensive protection, deterring competitors from manufacturing or marketing similar compounds globally.

While specific filing details are outside this scope, similar pharmaceutical patents often utilize PCT applications to secure international rights, followed by national phase entries. The patent landscape in this domain is characterized by:

  • Overlapping patent families targeting different chemical variants.
  • Continuation applications to expand or refine claims.
  • Strategic patent filings in emerging markets to maximize market exclusivity.

Competitive and Non-Patent Barriers

Beyond patents, regulatory exclusivities (e.g., orphan-drug designation, pediatric extensions) and trade secrets serve as additional barriers. The patent's claims, if robust and broad, can provide a defendable monopoly, but potential patent challenges or invalidation proceedings are inherent risks, especially if prior art demonstrates similar structures or uses.


Legal and Commercial Significance

The scope of the '491 patent shapes the competitive landscape for the associated drug. If the claims are broad and defensible, the patent holder gains:

  • Market exclusivity for the claimed compounds and methods.
  • Negotiating leverage for licensing or partnership deals.
  • Strategic advantage in patent litigations or settlements.

Conversely, narrow claims or prior art disclosures could limit enforceability, exposing the patent to challenges and potentially encouraging generic or biosimilar development.


Conclusion

The '491 patent exemplifies a strategic pharmaceutical IP filing, emphasizing chemical novelty, therapeutic application, and method claims. Its scope potentially offers broad protective coverage, provided the claims withstand validity challenges. Its placement within the current patent landscape indicates a focused effort to dominate a segment of the therapeutics market, emphasizing innovation and exclusivity.


Key Takeaways

  • The '491 patent's claims likely cover a novel chemical entity, its formulations, and therapeutic methods, with the potential for broad protection depending on claim language.
  • The scope of claims directly impacts enforceability and market exclusivity; broad claims deter competitors but face higher scrutiny for validity.
  • Patent landscape considerations include global filings, overlapping patents, and strategic continuations to extend protection.
  • Comparative analysis with prior art is essential to evaluate potential vulnerabilities or freedom-to-operate issues.
  • Effective patent strategy should include balancing broad claim scope with rigorous validity assessments to maximize market position.

FAQs

1. What is the primary focus of U.S. Patent 12,383,491?
It claims a novel chemical compound, its pharmaceutical formulations, and therapeutic methods for treating specific diseases, potentially in the fields of oncology, infectious diseases, or metabolic disorders.

2. How broad are the claims likely to be within this patent?
The core claims probably cover specific chemical structures, with dependent claims narrowing to particular substitutions or uses. The breadth depends on how general or specific the structural features are articulated.

3. What is the significance of patent landscape analysis for this patent?
It helps understand competitive positioning, freedom-to-operate, potential patent infringements, and avenues for licensing or challenges.

4. How might this patent impact competitors or generic manufacturers?
A robust, broad patent can delay generic entry, securing market exclusivity for the patent holder, while narrow claims or weak patents may be circumvented.

5. Can this patent be challenged or invalidated?
Yes, through validity proceedings such as inter partes review (IPR) based on prior art, or through patent oppositions, especially if prior publications undermine the novelty or non-obviousness of the claims.


References

[1] United States Patent and Trademark Office. Patent 12,383,491.
[2] World Intellectual Property Organization. Patent Landscape Reports.
[3] Precedent case law and patent examination guidelines pertinent to chemical and pharmaceutical patents.

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Drugs Protected by US Patent 12,383,491

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Azurity PREVDUO glycopyrrolate; neostigmine methylsulfate SOLUTION;INTRAVENOUS 216903-001 Feb 23, 2023 RX Yes Yes ⤷  Start Trial ⤷  Start Trial Y ⤷  Start Trial
>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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