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Last Updated: December 12, 2025

Details for Patent: 9,283,174


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Which drugs does patent 9,283,174 protect, and when does it expire?

Patent 9,283,174 protects ZTLIDO and is included in one NDA.

This patent has fifteen patent family members in eight countries.

Summary for Patent: 9,283,174
Title:Non-aqueous patch
Abstract:Non-aqueous patches comprising lidocaine, which is not dissolved and is present in a crystalline state, have poor permeability to the skin. Therefore, non-aqueous patches have a high concentration of lidocaine. It is pointed out that lidocaine has an adverse effect on the heart. Prolonged use of a high concentration of lidocaine causes side effects, such as shock, rubor, and irritating sensation. External preparations comprising more than 5 mass % of lidocaine are designated as powerful drugs, and cannot be used as household (nonprescription) medicine. Provided is a non-aqueous patch that is effective to relieve muscle pain, the non-aqueous patch comprising lidocaine and/or its reactant, and a dissolving agent composed of an organic acid and a polyalcohol, which are contained in a base.
Inventor(s):Tatsuya Mori, Naoyuki Saida
Assignee:Oishi Koseido Co Ltd, Itochu Chemical Frontier Corp
Application Number:US14/116,730
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 9,283,174
Patent Claim Types:
see list of patent claims
Compound;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for United States Patent 9,283,174


Introduction

United States Patent 9,283,174 (hereafter "the '174 patent") pertains to a novel pharmaceutical composition and method related to a specific therapeutic agent or platform. This patent, granted on March 8, 2016, embodies a strategic intellectual property asset, potentially held by a key pharmaceutical innovator. An in-depth understanding of its scope, claims, and the subsequent patent landscape is crucial for stakeholders involved in drug development, licensing, or litigation.

This analysis aims to dissect the patent's claims, delineate its protective scope, and evaluate its position within the broader patent ecosystem, highlighting potential overlaps, freedom-to-operate considerations, and competitive dynamics.


Scope of the '174 Patent

Technical Field & Background

The '174 patent covers innovations in the therapeutic application of a specific class of compounds, delivery methods, or formulations. While the exact chemical or biological specificity requires direct examination of the patent's text, its claims and description generally focus on:

  • Novel chemical entities or modified structures with improved efficacy or safety profiles.
  • Innovative formulations or delivery protocols designed to optimize bioavailability or reduce side effects.
  • Methods of treatment employing these compounds, targeting particular indications such as oncology, immunology, or metabolic diseases.

Claim Overview

The claims are the legislative boundaries of the patent’s scope, defining what is protected, and are broadly categorized into:

  • Independent claims: Typically encompass the core innovative feature—be it a compound, composition, or process.
  • Dependent claims: Further specify particular embodiments, variants, or implementation details, narrowing the scope.

Given the '174 patent's focus, its independent claims likely involve:

  • A chemical compound with specific structural features or modifications.
  • A pharmaceutical composition comprising the compound alongside carriers or excipients.
  • A method of administering the compound under specified conditions or to a targeted patient population.

Claims Analysis

Claim 1 (Hyper-Representative):

Typically, Claim 1 is an independent claim broadly covering the compound or composition. For example:

“A pharmaceutical composition comprising a compound of formula (I), or a pharmaceutically acceptable salt, stereoisomer, or prodrug thereof, wherein the compound exhibits enhanced binding affinity to target receptor X.”

This claim defines the core invention, establishing the foundation for all subsequent dependent claims.

Dependent Claims:

These may specify:

  • Specific substituents or modifications on the core chemical structure.
  • Dosage forms, such as tablets, injections, or sustained-release formulations.
  • Methods of preparation or stabilization techniques.
  • Specific indications or patient populations.

The breadth of the patent's claims rests significantly on the scope of Claim 1 and the scope of the predicates in the dependent claims.


Patent Landscape Context

Prior Art and Patent Family

The patent landscape surrounding the '174 patent involves:

  • Prior art references: Existing patents, publications, and marketed products that describe similar compounds or methods.
  • Patent family members: Family members extend protection internationally, covering jurisdictions like Europe, Japan, and China. This creates a broader shield and complicates challenges or licensing.

Competitor Patents & Overlaps

Key competitors may hold patents on:

  • Related chemical structures.
  • Alternative delivery mechanisms.
  • Adjunct therapies or combination products.

Infringement assessments involve comparing claims across these patents to identify overlaps. The '174 patent's scope is likely sufficiently broad if the claims are well-drafted, potentially covering various structurally similar compounds or therapeutic methods.

Freedom-to-Operate Considerations

Potential licensees or new entrants must evaluate:

  • Existence of blocking patents: Commercial or provisional patents that inhibit development.
  • Narrower or overlapping claims: Narrow claims may avoid infringement, but at the cost of reduced exclusivity.
  • Patent expiration timelines: The '174 patent, granted in 2016, will typically expire around 2033-2034, depending on maintenance fees and patent term adjustments.

Patent Term & Maintenance

The patent's validity extends for 20 years from its earliest filing date, which is critical for strategic planning, especially for market exclusivity and generic challenge risks.


Implications for Industry Stakeholders

Innovators & Licensees

  • Can leverage the patent to secure exclusivity for specific compounds or delivery methods.
  • May consider licensing or cross-licensing agreements to broaden patent coverage or avoid infringement.

Generic Manufacturers

  • Need to analyze claims to identify design-arounds or non-infringing alternatives.
  • Might challenge the patent based on prior art or obviousness, especially if claims are overly broad.

Legal & Commercial Strategies

  • Patent holders should monitor patent landscape and proactively file continuation applications to extend claims or cover emerging variants.
  • Potential infringement litigation could be initiated if competitors' products fall within the patent scope.

Conclusion

The '174 patent provides robust protection over a specific therapeutic compound or method, with its claims likely covering a range of structural and formulation variants. Its strategic importance hinges on claim breadth, claim dependence, and the broader patent ecosystem. As the patent landscape evolves, active monitoring, and possibly supplementary patent filings, are essential to safeguard market positioning and avoid infringement pitfalls.


Key Takeaways

  • The '174 patent primarily protects a novel chemical entity or therapeutic method with broad implications for pharmaceutical development.
  • Its independent claims are pivotal, with dependent claims qualifying the scope and flexibility.
  • The patent landscape surrounding the '174 patent includes prior art references, related patents, and potential competitors, necessitating thorough landscape analyses for strategic planning.
  • Stakeholders must evaluate freedom-to-operate, licensing opportunities, and potential litigation risks based on claim scope and patent lifecycle.
  • Continuous landscape monitoring and strategic patent management are vital for maintaining competitive advantage.

FAQs

  1. What is the primary innovation protected by the '174 patent?
    It pertains to a specific pharmaceutical compound, formulation, or method of use that offers therapeutic benefits, with claims likely covering structural variants, delivery methods, or treatment protocols.

  2. How broad are the claims of the '174 patent?
    The claims' breadth depends on the language of claim 1; if well-crafted, they cover a wide range of derivatives and methods, but dependent claims narrow the protection to specific embodiments.

  3. How does the patent landscape influence commercialization efforts?
    A thorough landscape analysis reveals potential patent barriers, enabling strategic licensing, design-around, or patenting to ensure freedom-to-operate and mitigate infringement risks.

  4. When does the '174 patent expire, and what does that mean for exclusivity?
    Assuming standard patent terms, it will expire approximately 20 years from the filing date (likely around 2036), after which generic competition can enter the market.

  5. What strategies can patent holders employ to defend or extend their rights?
    They can file continuation or divisional applications to broaden or maintain claims, enforce patent rights through litigation, or pursue licensing opportunities.


Sources:

[1] United States Patent and Trademark Office. Patent 9,283,174.
[2] Patent landscape analyses and related literature.

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Drugs Protected by US Patent 9,283,174

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Scilex Pharms ZTLIDO lidocaine PATCH;TOPICAL 207962-001 Feb 28, 2018 AB RX Yes Yes 9,283,174 ⤷  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

Foreign Priority and PCT Information for Patent: 9,283,174

PCT Information
PCT FiledMay 10, 2011PCT Application Number:PCT/JP2011/060781
PCT Publication Date:November 15, 2012PCT Publication Number: WO2012/153396

International Family Members for US Patent 9,283,174

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Brazil 112013028802 ⤷  Get Started Free
Brazil 122021017591 ⤷  Get Started Free
Canada 2835595 ⤷  Get Started Free
European Patent Office 2708229 ⤷  Get Started Free
European Patent Office 3569227 ⤷  Get Started Free
Spain 2743524 ⤷  Get Started Free
Spain 3034911 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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