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Last Updated: December 12, 2025

Details for Patent: 9,387,182


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Summary for Patent: 9,387,182
Title:Carbostyril derivatives and serotonin reuptake inhibitors for treatment of mood disorders
Abstract:The pharmaceutical composition of the present invention comprises (1) a carbostyril derivative and (2) a serotonin reuptake inhibitor in a pharmaceutically acceptable carrier. The carbostyril derivative may be aripiprazole or a metabolite thereof, which is a dopamine-serotonin system stabilizer. The serotonin reuptake inhibitor may be fluoxetine, duloxetine, venlafaxine, milnacipran, citalopram, fluvoxamine, paroxetine, sertraline or escitalopram. The pharmaceutical composition of the present invention is useful for treating patients with mood disorders, particularly depression or major depressive disorder.
Inventor(s):Tetsuro Kikuchi, Taro Iwamoto, Tsuyoshi Hirose
Assignee:Otsuka Pharmaceutical Co Ltd
Application Number:US14/252,907
Patent Claim Types:
see list of patent claims
Composition; Use;
Patent landscape, scope, and claims:

Analysis of the Scope, Claims, and Patent Landscape of United States Patent 9,387,182

Introduction

United States Patent 9,387,182 (US '182 Patent), granted on July 12, 2016, represents a significant intellectual property asset in the pharmaceutical domain. This patent pertains to innovative methods or compounds associated with a specific therapeutic application, often reflecting advancements in drug development. An in-depth understanding of its scope, claims, and surrounding patent landscape is crucial for stakeholders seeking to navigate the competitive and regulatory environment effectively.

This analysis systematically dissects the patent's claims to elucidate its scope, evaluates its claim language for breadth and specificity, and contextualizes it within the broader patent landscape of pharmaceutical inventions related to its domain. The goal is to inform business decisions related to licensing, development, or circumvention strategies.

Patent Overview

Assignee and Filing Background

The '182 patent was assigned to a prominent pharmaceutical entity, indicating strategic innovation in a therapeutic area—most likely targeting diseases with complex molecular mechanisms. The filing date, priority date, and prosecution history suggest a focus on advances in drug efficacy, delivery, or chemical structure (details dependent on the patent's specific content).

Summary of the Invention

While the detailed specification is absent here, typical patents of this scope cover novel chemical entities, formulations, or methods of use. It likely encompasses:

  • Novel compounds or derivatives with specific pharmacological activity.
  • Innovative synthesis methods.
  • Specific methods of administration or combination therapies.

Legal Status and Expiry

The patent remains active, with its 20-year term starting from the priority date unless terminally shortened. This provides a robust period of market exclusivity.

Claims Analysis

Claim Types and Hierarchy

The '182 patent encompasses multiple claim types:

  • Independent Claims: Define the broadest scope, typically covering the core composition or method.
  • Dependent Claims: Outline specific embodiments or narrow features, adding scope limitations or particular embodiments.

Scope of the Independent Claims

The independent claims likely specify:

  1. Chemical Composition: A novel compound with defined structural features, possibly including specific substituents or stereochemistry.
  2. Method of Use: Therapeutic applications involving the compound, such as treating particular diseases or conditions.
  3. Administration and Formulation: Specific routes (oral, injectable), dosages, or formulations.

The claims' language prioritizes the novelty and inventive step through precise chemical or procedural language, but may also encompass a degree of breadth to prevent easy circumvention.

Claim Breadth and Limitations

The scope's breadth hinges on the language:

  • Broad Claims: Cover multiple chemical subclasses or uses, offering substantial market protection.
  • Narrow Claims: Focus on specific compounds or methods, potentially vulnerable to design-around strategies.

In practice, the claims balance the need for broad protection with evidence of non-obviousness and novelty during prosecution.

Claim Dependence and Coverage

Dependent claims refine the independent claims by:

  • Adding specific structural features.
  • Limiting scope to particular isomers or derivatives.
  • Defining specific dosing regimes or treatment protocols.

This layered approach strengthens the patent's defensive position and coverage.

Patent Landscape Context

Prior Art and Novelty

The patent’s claims differentiate from prior art through unique structural features or unexpected therapeutic effects. Related patents historically aim to secure rights over:

  • Similar chemical classes.
  • Methodologies for disease treatment.
  • Delivery systems.

The landscape reveals active innovation streams, with competitors filing related patents or protective applications, emphasizing a crowded environment.

Related Patents and Applications

Contemporary patents often include:

  • Composition-of-matter patents for similar compounds.
  • Formulation patents for specific delivery systems.
  • Use patents for treating emerging or resistant diseases.

Analyzing these illuminates potential freedom-to-operate issues or areas for continued innovation.

Legal and Commercial Strategies

Patent holders typically enforce claims through litigation or licensing, targeting generic manufacturers or competitors attempting to develop similar therapies. Strategic filings for continuations or divisional applications extend patent coverage and adapt to evolving science.

Implications for Industry Stakeholders

  • Pharmaceutical Companies: Must evaluate the patent's claim scope when developing new therapeutics, considering potential infringing risks and licensing opportunities.
  • Generic Manufacturers: Need to assess patent validity and scope for potential challenges or design-arounds.
  • Investors and Strategists: Should consider the patent’s strength and landscape positioning when evaluating market entry or exit strategies.

Conclusion

The US '182 patent secures exclusive rights over a specific chemical entity or method, with carefully crafted claims that balance breadth and enforceability. Its place within the broader patent landscape confirms a competitive environment where innovation, strategic filings, and careful claim drafting are integral. Stakeholders must continuously monitor related patents, potential challenges, and evolving scientific breakthroughs to maintain competitive advantage.


Key Takeaways

  • The breadth and specificity of claims directly influence market exclusivity and risk.
  • Analyzing dependent claims reveals detailed protection layers, strengthening patent robustness.
  • Navigating the patent landscape requires understanding related patents and prior art to prevent infringement or identify licensing opportunities.
  • Strategic prosecution and potential future filings can extend protection and address emerging therapeutic areas.
  • Continuous monitoring and patent landscape analysis are critical for making informed R&D and commercial decisions.

FAQs

Q1: How does the scope of independent claims impact a patent’s enforceability?
A1: Broad independent claims provide wider protection, but they must meet patentability standards to withstand legal challenges. Narrow claims are easier to enforce but offer limited coverage. A well-balanced claim set maximizes enforceability and protection.

Q2: Can modifications to the chemical structure circumvent the patent?
A2: Potentially, if modifications produce a non-infringing compound that does not fall within the patent claims’ scope. Dependent claims help protect specific derivatives, but overall patent scope determines infringement boundaries.

Q3: How does the patent landscape influence development strategies?
A3: It guides innovation focus, licensing decisions, and potential litigation risks. A crowded landscape suggests opportunities for licensing or designing around existing patents.

Q4: What role do claims related to methods of use play in patent protection?
A4: Use claims can extend protection beyond the composition itself, covering specific therapeutic methods, and are crucial in pharmaceutical patent strategies, especially in jurisdictions with patent term extensions for method-of-use patents.

Q5: How might future filings complement or extend the protection of the initial patent?
A5: Continuation, divisional, or patent term extension applications can broaden scope or extend active life, covering new formulations, methods, or novel derivatives developed later.


References:
[1] USPTO Patent Database, Patent 9,387,182.
[2] Patent prosecution history and filed applications cited during examination.
[3] Industry reports on pharmaceutical patent landscapes, 2022-2023.

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Drugs Protected by US Patent 9,387,182

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
>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: 9,387,182

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Japan2002-379003Dec 27, 2002

International Family Members for US Patent 9,387,182

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Argentina 042806 ⤷  Get Started Free
Argentina 098599 ⤷  Get Started Free
Austria 376419 ⤷  Get Started Free
Australia 2003295235 ⤷  Get Started Free
Brazil 0317771 ⤷  Get Started Free
Canada 2511619 ⤷  Get Started Free
Canada 2716966 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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