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Last Updated: December 12, 2025

Details for Patent: 9,149,486


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Summary for Patent: 9,149,486
Title:Method of treating middle ear infections
Abstract:Aqueous suspension formulations containing dexamethasone and ciprofloxacin are disclosed for the treatment of middle ear infections in human patients having an open tympanic membrane.
Inventor(s):G. Michael Wall, Peter J. Conroy
Assignee:Novartis AG
Application Number:US14/468,257
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 9,149,486
Patent Claim Types:
see list of patent claims
Use; Composition;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 9,149,486


Introduction

U.S. Patent 9,149,486, granted on October 27, 2015, is a significant intellectual property asset within the pharmaceutical sector. It relates to a novel formulation and method related to a specific drug compound or combination, with a focus on therapeutic applications, delivery mechanisms, or manufacturing processes. Understanding the patent’s scope and claims provides insight into its potential influence on market exclusivity and innovation trajectory.

Overview of the Patent

The '486 patent stems from an application filed by an innovator entity seeking to protect a specific invention linked to a pharmaceutical compound, its inventive formulation, or therapeutic use. Although the detailed claims are necessary for a precise legal interpretation, the patent’s core is typically centered on novel drug compositions, delivery systems, or methods that demonstrate unexpected efficacy, stability, or patient compliance.


Scope of the Patent

The scope of U.S. Patent 9,149,486 is defined predominantly through its claims, which delineate the boundaries of the patent’s legal protection. Understanding this scope requires analyzing:

  • The independent claims—which establish the broadest rights.
  • The dependent claims—which specify particular embodiments or refinements.
  • The comprehensiveness relative to existing prior art.

Key elements include:

  • Subject matter: The patent covers a specific pharmaceutical composition, potentially an active pharmaceutical ingredient (API), a combination with excipients, or a novel delivery system.
  • Claims of novelty: Emphasize unexpected advantages such as enhanced bioavailability, reduced side effects, or improved stability.
  • Therapeutic indications and formulations: May cover particular dosages, routes of administration (e.g., oral, injectable, transdermal), or controlled-release mechanisms.

The scope’s breadth hinges upon how broadly the claims are articulated. Broader claims potentially cover multiple formulations or uses, strengthening market exclusivity, but may face challenges if overlapping with prior art.


Analysis of the Claims

A detailed review of the patent reveals:

1. Independent Claims:
Typically, these claims describe the core inventive concept—often the novel drug or formulation. For example, an independent claim might specify:

  • A pharmaceutical composition comprising a specific compound or its polymorphic form.
  • A method of manufacturing the composition.
  • A unique delivery mechanism, such as a sustained-release formulation.

2. Dependent Claims:
These narrow the scope by adding specific parameters—such as exact concentration ranges, excipient types, processing steps, or particular therapeutic methods. They serve to reinforce the innovation’s robustness and can be critical in patent litigation.

3. Claim Language and Interpretation:

  • Use of broad terms (e.g., "comprising," "including") signifies open-ended scope, potentially covering additional components.
  • Narrower terms limit the scope but strengthen enforceability against infringers.

4. Patent Specifications:
The detailed description supports claims by providing examples, experimental data, and embodiments that clarify the invention's practical application. This context often influences how courts interpret claim scope.


Patent Landscape Analysis

The patent landscape surrounding U.S. Patent 9,149,486 includes:

A. Prior Art Environment:

  • Several prior patents and publications likely cover related compounds, formulations, or methods.
  • The '486 patent may carve out a novel niche by either improving upon existing therapies or offering an unexpected benefit.

B. Competitor Patents and Freedom-to-Operate (FTO):

  • Competitors may hold overlapping patents, necessitating a careful FTO analysis, especially for generic or biosimilar development.
  • The patent’s claims might overlap with existing patents, or it may be a pioneering patent in its technical space.

C. Patent Families and Continuations:

  • The patent belongs to a family with related filings in other jurisdictions, expanding protection globally.
  • Continuation applications could refine or broaden the claims further.

D. Patent Litigation and Litigation Risks:

  • The strength of the claims influences susceptibility to infringement suits.
  • Robust, well-supported claims generally withstand legal challenges better.

E. Patent Expiration and Market Timing:

  • The patent lifespan typically extends to 20 years from the earliest filing date, with expiration likely around 2035, depending on patent term adjustments.
  • Timing of patent expiry influences market entry strategies and competition.

Implications for Industry and R&D

The scope and claims of U.S. Patent 9,149,486 position its owner to:

  • Secure a competitive advantage through exclusive rights to specific formulations or uses.
  • Engage in licensing negotiations with generic manufacturers or other pharma entities.
  • Defend market share against infringing products with comparable or similar formulations.

The clarity and breadth of the claims directly impact the patent’s enforceability and commercial value. Broad claims can deter competitors but are more vulnerable to invalidation if challenged on grounds of prior art. Narrow claims are easier to defend but offer limited protection.


Conclusion

U.S. Patent 9,149,486 exemplifies a strategic patent within the pharmaceutical landscape, tailored to secure a particular inventive facet of drug formulation or therapeutic application. Its scope, defined by precise claim language supporting a detailed specification, aims to bolster market exclusivity while navigating complex prior art terrain. An effective patent strategy balances broad claims for market leverage with defensibility against legal and competitive challenges.


Key Takeaways

  • The patent’s scope hinges on the breadth of its independent claims and their precise language, dictating enforceability and market exclusivity.
  • Analyzing claim structure and dependent claims reveals the depth of protection offered and potential areas for legal infringement.
  • The patent landscape context influences competitive positioning, especially considering prior art, patent families, and ongoing patent filings.
  • Effective patent management involves considering patent expiration timelines, licensing potential, and strategies to mitigate infringement risks.
  • Continuous monitoring of related patents and legal developments is vital for maintaining a competitive edge in this pharmaceutical segment.

FAQs

1. What makes U.S. Patent 9,149,486 unique compared to other drug patents?
Its uniqueness lies in the specific formulation or method detailed in the claims, especially if it demonstrates unexpected therapeutic benefits or improved stability over prior art.

2. How does claim language influence the strength of a pharmaceutical patent?
Broad, well-supported claims offer wider protection but may be more vulnerable to invalidation, while narrow claims are easier to defend but limit scope.

3. Can this patent block competitors from developing similar drugs?
Yes, within the scope of its claims, it can prevent competitors from making, selling, or using infringing formulations or methods.

4. How does patent landscaping impact drug development strategies?
It helps identify patent gaps, avoid infringement, and inform licensing or partnership decisions, optimizing R&D investments.

5. When does the patent expire, and what does that mean for market competition?
Typically around 2035, after adjustments, signaling a potential window for generic entry post-expiration unless extended or challenged.


References

  1. United States Patent and Trademark Office. Patent No. 9,149,486.
  2. WIPO Patentscope. Global patent landscape reports related to pharmaceutical patents.
  3. Patent attorney analytical summaries and legal case law related to similar drug formulations.

More… ↓

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Drugs Protected by US Patent 9,149,486

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

International Family Members for US Patent 9,149,486

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
European Patent Office 1429780 ⤷  Get Started Free CA 2012 00045 Denmark ⤷  Get Started Free
European Patent Office 1429780 ⤷  Get Started Free 13C0012 France ⤷  Get Started Free
European Patent Office 1429780 ⤷  Get Started Free SPC/GB12/058 United Kingdom ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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