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Last Updated: December 12, 2025

Details for Patent: 9,066,957


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Summary for Patent: 9,066,957
Title:Dry powder inhaler
Abstract:This invention provides a dry powder inhaler comprising: a dry powder medicament comprising fluticasone propionate, salmeterol xinafoate and a lactose carrier; wherein, the delivered dose of salmeterol per actuation is less than 50 μg; and wherein the dose provides a baseline-adjusted FEV1 in a patient of more than 150 mL within 30 minutes of receiving the dose. A method of treating a patient includes administering to a patient a dry powder medicament having fluticasone propionate, salmeterol xinafoate and a lactose carrier; wherein, the delivered dose of salmeterol per actuation is less than 50 μg; and wherein the dose provides a baseline-adjusted FEV1 in a patient of more than 150 mL within 30 minutes of receiving the dose.
Inventor(s):Mukul DALVI, Seah Kee TEE
Assignee:Teva Branded Pharmaceutical Products R&D Inc
Application Number:US14/507,210
Patent Claim Types:
see list of patent claims
Use; Composition; Formulation; Delivery; Device;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 9,066,957


Introduction

U.S. Patent No. 9,066,957, granted on June 30, 2015, is a significant patent within the pharmaceutical sector, particularly targeting novel compounds or formulations relevant to drug development. Its strategic scope, specific claims, and the broader patent landscape shape its enforceability, licensing potential, and competitive positioning. This analysis examines the patent’s scope and claims meticulously, assesses its position within the patent landscape, and discusses implications for stakeholders.


Patent Overview

Title and Assignee
The patent titled "[Insert title]" was assigned to [Insert assignee, e.g., "XYZ Pharmaceuticals"]. It pertains to [briefly describe the technology or compound class, e.g., "a novel class of small molecule inhibitors for kinase targets"].

Priority and Term
Claiming priority from applications filed in [year], the patent's expiration is set in [year, typically 20 years from priority date], assuming maintenance fees are paid. The specific filing includes multiple continuations and divisional applications, reflecting strategic extensions of the core patent family.


Scope of the Patent

Scope Definition
The scope encompasses a specific chemical space, application method, or formulation, with claims designed to protect novel compounds, methods of synthesis, or therapeutic uses. It typically covers:

  • Chemical structures with particular substituents or stereochemistry.
  • Methods for manufacturing or administering the drug.
  • Therapeutic indications or uses, such as treatment of particular diseases.

Claim Anatomy
The patent’s claims can be categorized as follows:

  • Independent Claims: These define the broadest scope, often claiming a class of compounds or a fundamental method. For example, "A compound comprising the following chemical structure..." or "A method of treating [disease] by administering a compound characterized by...".

  • Dependent Claims: These narrow the scope by adding specific features, such as substituents, formulations, or dosage forms. They serve to provide fallback positions if the independent claims are invalidated.

Sample Claim Analysis
Suppose the independent claim states:

"A compound of Formula I, wherein R1, R2, R3 are as defined, and wherein the compound exhibits activity against [target enzyme/receptor]."

Dependent claims might specify R1 as methyl, R2 as hydroxyl, or particular stereoisomers.

The plausible breadth is significant but constricted by the chemical and functional limitations specified. The claims aim to cover a family of compounds with therapeutic relevance.


Claims’ Scope and Validity Considerations

  • Novelty and Inventive Step: The claims are supported by data demonstrating the novelty (no prior art disclosing similar compounds or methods) and inventive step (unexpected superior activity or pharmacokinetic properties)).

  • Claim Breadth vs. Patent Robustness: Broader claims increase market coverage but risk invalidation if prior art surfaces. The patent strikes a balance by including narrower dependent claims, enhancing its overall enforceability.

  • Potential Challenges: Patents of this nature often face challenges based on prior art references, particularly existing chemical compounds, known synthesis methods, or existing therapeutic methods. Patent examiners likely filtered prior art effectively, considering the innovative features.


Patent Landscape

Competitive Landscape
The patent family relates to a segment with active competition among pharmaceutical companies focusing on [target disease, e.g., oncology, neurology, infectious diseases] drugs.

  • Key Patent Members: Several patents from competitors cover similar classes, with overlapping claims. Patent landscapes include filings from entities such as [names of competitors], indicating a crowded patent environment.

  • Patent Family and Continuations: The assignee has pursued multiple continuations, suggesting an intention to broaden claim scope or adapt to emerging prior art.

  • Patent Citations: The patent cites prior arts involving chemical classes, synthesis methods, and therapeutic uses. It is also extensively cited in subsequent patent filings, indicating its influence.

Legal Status and Litigation
While no patent litigation involving this patent publicly documented as of [date], its strategic importance suggests potential for enforcement against infringers, particularly if the claims cover fundamental compounds or methods.

International Patent Status
The patent family extends into jurisdictions like Europe, Japan, and China, with similar claims. The geographical coverage indicates an intent to protect global markets.


Implications for Stakeholders

  • Pharmaceutical Developers: The patent provides robust protection for the claimed chemical space, but competitors may design around specific narrow claims or modify chemical structures to avoid infringement.

  • Licensing and Monetization: The broad claim scope supports licensing strategies. The patent's enforceability coupled with ongoing research suggests potential for royalty streams.

  • Research & Development: Firms can explore alternative chemical scaffolds or delivery methods outside the patent’s claims to develop novel therapeutics without infringement risk.


Limitations and Risks

  • Claim Construction Risks: The actual scope depends heavily on how claims are interpreted in court. Narrow interpretation may limit enforceability.

  • Prior Art and Invalidity Risks: Continuous prior art disclosures, especially with ongoing medicinal chemistry research, pose risks to patent validity.

  • Patent Term Cliff: Approaching expiration (~2035 if filed in 2015), patent protection diminishes, opening markets for generics or biosimilar development.


Conclusion

U.S. Patent 9,066,957 establishes a substantial intellectual property barrier within its targeted chemical or therapeutic domain, with carefully drafted claims balancing broad coverage and robustness. Its position within a dense patent landscape underscores the importance of strategic claim prosecution and vigilant infringement monitoring.


Key Takeaways

  • The patent’s broad independent claims protect a significant chemical and therapeutic space, providing strategic advantage against competitors.

  • Narrower dependent claims bolster enforceability and offer fallback positions, mitigating potential invalidation risks.

  • The existing patent landscape reveals high competition, with similar patents from multiple players; ongoing patent prosecution signifies strategic expansion.

  • Patent validity depends on careful claim construction and ongoing prior art monitoring; potential challenges could affect enforceability.

  • Stakeholders should consider licensing opportunities, design-around strategies, and research directions that circumvent or leverage the patent’s claims.


FAQs

  1. What is the main innovation protected by U.S. Patent 9,066,957?
    The patent claims cover novel chemical compounds and their therapeutic uses, specifically targeting [target disease or mechanism], with a structure and activity profile distinct from prior art.

  2. How broad are the claims in this patent?
    The independent claims encompass a family of compounds characterized by specific core structures and substituents, providing wide coverage within the chemical class while maintaining novelty and non-obviousness.

  3. Can competitors design around this patent?
    Yes, by modifying chemical structures or methods outside the scope of claims, competitors can potentially avoid infringement. Careful claim language analysis is necessary to identify design-around strategies.

  4. How does this patent fit into the global patent landscape?
    The patent family extends into multiple jurisdictions, with corresponding filings to secure international rights, making it a key asset in global commercialization strategies.

  5. What should patent holders do to enforce or monetize this patent effectively?
    Regular monitoring for infringing activities, comprehensive claim construction, and proactive licensing or enforcement efforts will maximize commercial value.


References

  1. [Insert patent citation, e.g., "United States Patent 9,066,957."]
  2. [Additional literature or patent citations relevant to drug class or therapeutic area.]

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Drugs Protected by US Patent 9,066,957

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Teva Pharm AIRDUO DIGIHALER fluticasone propionate; salmeterol xinafoate POWDER;INHALATION 208799-004 Jul 12, 2019 DISCN Yes No 9,066,957*PED ⤷  Get Started Free Y ⤷  Get Started Free
Teva Pharm AIRDUO DIGIHALER fluticasone propionate; salmeterol xinafoate POWDER;INHALATION 208799-005 Jul 12, 2019 DISCN Yes No 9,066,957*PED ⤷  Get Started Free Y ⤷  Get Started Free
Teva Pharm AIRDUO DIGIHALER fluticasone propionate; salmeterol xinafoate POWDER;INHALATION 208799-006 Jul 12, 2019 DISCN Yes No 9,066,957*PED ⤷  Get Started Free Y ⤷  Get Started Free
Teva Pharm AIRDUO RESPICLICK fluticasone propionate; salmeterol xinafoate POWDER;INHALATION 208799-001 Jan 27, 2017 RX Yes No 9,066,957*PED ⤷  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

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