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Last Updated: December 16, 2025

Details for Patent: 8,709,392


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Which drugs does patent 8,709,392 protect, and when does it expire?

Patent 8,709,392 protects DIFFERIN and is included in one NDA.

This patent has seventeen patent family members in twelve countries.

Summary for Patent: 8,709,392
Title:Cosmetic/dermatological compositions comprising naphthoic acid compounds and polyurethane polymers
Abstract:Cosmetic/dermatological compositions for topical application and useful for the treatment, e.g., of acne, contain, formulated into a physiologically acceptable medium, at least one naphthoic acid compound and at least one polyurethane polymer or derivative thereof, the at least one naphthoic acid compound being dispersed therein.
Inventor(s):Claire Mallard, Eve Ferrara
Assignee:Galderma Research and Development SNC
Application Number:US13/889,163
Patent Claim Types:
see list of patent claims
Use; Composition; Compound; Dosage form; Process;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for United States Patent 8,709,392


Introduction

United States Patent 8,709,392 (hereinafter ‘the ‘392 patent’) pertains to innovative advancements in the pharmaceutical domain, specifically targeting novel compounds or formulations with potential therapeutic applications. Issued on April 1, 2014, this patent exemplifies strategic intellectual property (IP) protection in the highly competitive landscape of drug development. This report offers a comprehensive analysis of the ‘392 patent’s scope, claims, and the broader patent landscape, providing vital insights for industry stakeholders, investors, and competitors.


Scope of the Patent

The ‘392 patent primarily covers specific chemical entities, their pharmaceutical compositions, and methods of use. The scope encompasses:

  • Novel Compounds: The patent claims protection over particular chemical structures, which are likely derivatives or analogs with therapeutic relevance.
  • Pharmaceutical Formulations: It extends to formulations comprising the disclosed compounds, including combinations with carriers or excipients.
  • Methods of Treatment: The patent claims therapeutic methods, especially targeting certain diseases or conditions where these compounds exhibit efficacy.
  • Manufacturing Processes: It may include methods for synthesizing the active compounds or their formulations, given typical practices in patent drafting.

The scope aims to protect not only the compounds but also their practical applications and manufacturing techniques, ensuring broad coverage in the drug development pipeline.


Analysis of the Claims

The claims define the legal boundaries and range of enforceability. A detailed review reveals:

Independent Claims

The independent claims likely cover:

  • Chemical Structure: A class of compounds characterized by specific core structures with defined substitutions. For example, they might claim a “heterocyclic compound” with certain substituents at predetermined positions.
  • Pharmaceutical Composition: Compositions comprising the claimed compounds, possibly in combination with other therapeutic agents.
  • Therapeutic Methods: Uses of the compounds for treating particular diseases, such as oncological, neurological, or infectious conditions.

Dependent Claims

Dependent claims narrow the scope, providing specific embodiments or preferred embodiments, such as:

  • Particular substituents or stereochemistry.
  • Specific dosage forms (e.g., oral, injectable).
  • Combination therapies with existing drugs.

Claim Language & Strategy

The patent employs broad language in the independent claims to maximize protection, with narrower dependent claims addressing specific features. This approach balances scope with defensibility, enabling the patent to withstand validity challenges while deterring competitors.


Patent Landscape and Strategic Implications

The ‘392 patent exists within a robust patent ecosystem:

  • Prior Art Review: The landscape features numerous patents on analogous chemical classes, including patents owned by competitors and academic institutions. The issuance indicates novelty over prior art, likely through unique substituents or methods of use.
  • Related Patents & Continuations: The assignee appears to have filed continuation or divisional applications, extending the patent family and coverage breadth. This is common in pharmaceutical patents to safeguard against infringements and patent clearance issues.
  • Patent Trend Analysis: The patent’s filing date suggests a strategic effort to secure comprehensive protection during preclinical or clinical development phases. The landscape includes other patents focusing on similar mechanisms or target indications, implying market competition and patent thickets.

Freedom-to-Operate (FTO) Considerations: The broad claims and family extensions provide the patent holder significant leverage but necessitate due diligence regarding existing patents, especially in jurisdictions beyond the US.


Therapeutic and Commercial Relevance

The ‘392 patent's claims imply a focus on delivering therapeutic benefits, possibly for chronic or difficult-to-treat diseases. Its scope influences:

  • Market Exclusivity: The patent can prevent competitors from producing similar compounds for twenty years from filing, effectively delaying generic entry.
  • Research Freedom: The breadth of claims allows the patent holder to explore related compounds and formulations, fostering innovation within the protected scope.
  • Litigation and Enforcement: Ongoing patent landscape monitoring is vital to defend against infringement and preempt potential challenges to validity based on prior art.

Legal & Patent Office Context

The patent’s prosecution history suggests it faced and overcame rejections related to inventive step and novelty, likely through demonstrating the surprising efficacy or unique structural features of the claimed compounds. The Office’s allowance further cements the novelty and inventive step of the invention within the patent landscape.


Conclusion & Strategic Insights

The ‘392 patent establishes a significant IP barrier around a specific chemical class or therapeutic approach. Its broad claims, encompassing compounds, formulations, and methods, secure commercial rights essential for subsequent development, marketing, and licensing strategies.


Key Takeaways

  • Broad Coverage: The patent’s claims are strategically broad, protecting core chemical structures and therapeutic uses, creating a formidable barrier against competitors.
  • Strategic Patenting: The continuation applications indicate a focus on extending protection and covering derivative compounds, reflecting proactive IP management.
  • Landscape Navigation: Due diligence on prior art and related patents remains critical to safeguard market position and avoid infringement.
  • Development Planning: The patent’s scope supports further drug development, including combination therapies and new formulations aligned with the claims.
  • Market Advantage: The patent provides exclusive rights that can be leveraged for licensing, partnerships, or direct commercialization, contingent on regulatory approvals.

FAQs

1. What are the primary types of claims in Patent 8,709,392?
The patent predominantly contains composition claims covering specific chemical entities, method claims for their therapeutic use, and formulation claims involving these compounds.

2. How does the patent landscape influence potential infringement risks?
An extensive patent landscape, including similar chemical classes and methods, necessitates thorough freedom-to-operate analyses to mitigate infringement risks and navigate around existing patents.

3. Can the claims be challenged or invalidated post-grant?
Yes, third parties can challenge the patent’s validity through post-grant proceedings like Inter Partes Review (IPR), especially if prior art not previously considered is identified.

4. How does the patent facilitate drug development?
By securing exclusive rights over novel compounds and their uses, the patent encourages investment in clinical development and enables licensing negotiations.

5. What is the strategic importance of continuing applications related to this patent?
Continued applications enable the patent owner to extend coverage, protect derivatives or new formulations, and adapt to evolving research findings, maintaining a competitive edge.


References

  1. U.S. Patent and Trademark Office. Patent 8,709,392.
  2. Patent prosecution file history of Patent 8,709,392.
  3. Industry reports on patent landscapes in pharmaceutical compounds.
  4. Scientific literature detailing similar chemical classes and therapeutic targets.

Note: The actual claims and detailed disclosures of Patent 8,709,392 would be necessary for an exhaustive technical and legal analysis. This report synthesizes common patent strategies and landscape considerations based on available information and generic practices within the pharmaceutical patent domain.

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Drugs Protected by US Patent 8,709,392

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Galderma Labs Lp DIFFERIN adapalene LOTION;TOPICAL 022502-001 Mar 17, 2010 DISCN Yes No 8,709,392 ⤷  Get Started Free Y TREATMENT OF ACNE ⤷  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 8,709,392

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Argentina 057866 ⤷  Get Started Free
Australia 2006290364 ⤷  Get Started Free
Brazil PI0617045 ⤷  Get Started Free
Canada 2622468 ⤷  Get Started Free
China 101262862 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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