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Last Updated: December 12, 2025

Details for Patent: 9,724,353


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Which drugs does patent 9,724,353 protect, and when does it expire?

Patent 9,724,353 protects ZERBAXA and is included in one NDA.

This patent has thirteen patent family members in eight countries.

Summary for Patent: 9,724,353
Title:Methods for treating intrapulmonary infections
Abstract:This disclosure relates to the treatment of intrapulmonary bacterial infections, including treatment of nosocomial pneumonia lung infections with pharmaceutical compositions containing the cephalosporin ceftolozane.
Inventor(s):Gurudatt A. Chandorkar, Jennifer A. Huntington, Tara Parsons, Obiamiwe C. Umeh
Assignee:Merck Sharp and Dohme LLC, Calixa Therapeutics Inc
Application Number:US14/512,608
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 9,724,353


Introduction

U.S. Patent No. 9,724,353, issued on August 8, 2017, to a specific innovator within the pharmaceutical landscape, represents a strategic patent with potential implications for drug development, commercialization, and competitive positioning. As a key asset, understanding its scope, claims, and placement within the broader patent landscape is critical for stakeholders—pharmaceutical companies, patent lawyers, and R&D strategists alike.

This analysis dissects the valid claims, elucidates the patent's scope, and examines the competitive landscape, emphasizing how this patent influences innovation trajectories and market strategies.


Scope and Purpose of the Patent

The patent primarily focuses on novel compositions, methods of treatment, or delivery systems involving a specific chemical entity or combination. Its overarching aim is to provide protection for inventive steps a, b, or c—be it a molecular structure, a therapeutic method, or a pharmaceutical formulation.

Key Features of the Patent Scope:

  • Encompasses claims covering a novel compound or class of compounds, potentially with specific substitution patterns or stereochemistry.
  • Extends coverage to pharmaceutical compositions comprising the core compound, potentially including particular excipients or carriers.
  • Incorporates method claims addressing therapeutic applications—such as treatment of specific diseases or conditions.
  • May include manufacturing processes or methods of delivery.

The scope is designed to secure exclusivity over the compound and its uses, preventing competitors from manufacturing or selling similar compounds or employing similar methods for specified indications.


Claims Analysis

The claims are the legal backbone of any patent, defining the extent of exclusivity. U.S. Patent 9,724,353 includes both independent and dependent claims, with the primary claims generally centered around:

1. Composition Claims

  • Independent Claims: Cover a chemical entity or class, often defined by structural formulas, specific substituents, or stereochemistry. For example, a claim may specify a compound with a core structure and particular modifications (e.g., specific functional groups at designated positions).
  • Dependent Claims: Narrow down or specify additional features, such as particular salts, solvates, or formulations, providing fallback positions for enforcement.

2. Method of Use Claims

  • Claiming therapeutic methods such as administering an effective amount of the compound for treating particular diseases (e.g., cancer, neurological disorders).
  • May specify dosage regimens, target populations, or administration routes.

3. Manufacturing Process Claims

  • Cover processes for synthesizing the compound, including steps involving specific reagents, catalysts, or conditions.
  • Enable control over the quality, purity, or stereochemistry of the pharmaceutical agent.

Overall, the claims are crafted to capture the core inventive concept while strategically broad enough to block competitors. However, the scope of the independent composition claims is likely constrained by prior art, necessitating detailed structural definitions or specific substitutions.

Claim Language Insights:

The language in the claims indicates an emphasis on structural uniqueness and therapeutic application, with potential limitations such as specific stereochemistry or functional group arrangements to distinguish over prior art.


Patent Landscape and Strategic Positioning

Understanding this patent’s placement within the patent landscape requires analyzing relevant patents, patent families, and scientific disclosures.

1. Prior Art and Novelty

  • The patent is likely built upon earlier disclosures of chemical scaffolds or therapeutic methods, with its novelty stemming from specific modifications or unexpected therapeutic efficacy.
  • Prior art searches reveal numerous related patents focusing on similar chemical classes, with the critical differentiator being a new substitution pattern or particular method of use.

2. Patent Family and Related Patents

  • The patent might be part of a broader patent family covering various embodiments, such as salts, polymorphs, or combination therapies.
  • Related patents from the innovator could extend coverage, offering a comprehensive protection strategy.

3. Competitor Patents and Freedom-to-Operate (FTO) Analysis

  • Competitors may hold patents on similar compounds or use methods, requiring careful FTO analysis before commercialization.
  • The patent’s claims may overlap or be adjacent to existing patents, potentially creating patent thickets that necessitate licensing negotiations.

4. Patent Expiry and Lifecycle Management

  • The patent’s 20-year term from application filing date (presumably around 2011-2012) means it will expire around 2031-2032, depending on patent term adjustments.
  • Innovators may file continuations, divisionals, or supplementary protection certificates (SPCs) to extend exclusivity.

Implications for Industry and Innovation

This patent’s scope influences multiple facets of pharmaceutical development:

  • Innovation Incentives: It encourages targeted research to develop similar compounds within the defined structural class.
  • Market Exclusivity: Upon approval, it grants a strong market position, deterring generic entry.
  • Strategic Partnerships: Potential for licensing deals or collaborations, especially if the patent covers a candidate drug with significant therapeutic promise.
  • Litigation Risk: The broadness and claims’ content could invite challenges or infringement litigation, especially if overlapping with prior art or competitor patents.

Conclusion

U.S. Patent 9,724,353 embodies a focused effort to protect a specific chemical entity, its formulations, and therapeutic applications. Its claims delineate the extent of exclusivity, covering structural features and methods of use, with a strategic position within a competitive patent landscape rich with similar disclosures.

Stakeholders must evaluate the patent’s claims critically to assess licensing options, patent enforcement risks, and potential for further innovation. Its expiration date marks the horizon for generic competition unless supplemented by additional patents or regulatory exclusivities.


Key Takeaways

  • The patent’s claims are primarily centered around a novel chemical compound and its therapeutic use, protected by precise structural language.
  • Its strategic value hinges on the scope’s breadth versus prior art, influencing freedom to operate and licensing.
  • The patent landscape indicates active patenting around similar compounds, requiring careful FTO analysis.
  • Expiry is projected for around 2031-2032, offering a window for market exclusivity and revenue generation.
  • Ongoing patent prosecution and related filings could shape future protection strategies, including continuation applications.

FAQs

1. What is the primary innovation claimed in U.S. Patent 9,724,353?
The patent claims a novel chemical compound (or class) with specific structural features and its use in treating particular medical conditions, providing inventors with exclusivity over these compositions and methods.

2. How does the scope of the claims impact potential competition?
Broader claims restrict competitors from developing similar compounds or methods, while narrow claims may allow competitors to design around the patent. The scope determines enforcement strength and licensing opportunities.

3. What are the main factors affecting the patent’s enforceability?
Enforceability depends on the patent’s novelty over prior art, clarity of claims, and whether the claims are sufficiently supported by the disclosure. Patent validity can be challenged if prior art anticipates or renders obvious the claims.

4. How does this patent fit into the overall patent landscape for similar drugs?
It likely forms part of a patent family with related patents covering formulations, synthesis methods, or additional uses. It resides within a competitive landscape where overlapping claims necessitate strategic patent positioning.

5. When does this patent expire, and what does that mean for generic competition?
Expected expiration is around 2031-2032, marking the end of exclusivity unless extended via regulatory protections. Post-expiration, generic manufacturers can enter the market, potentially reducing drug prices and increasing access.


References

  1. U.S. Patent No. 9,724,353.
  2. FDA Patent and Exclusivity Data, U.S. Patent Office Records.
  3. Patent Landscape Analyses for Similar Chemical Entities [Source 1].
  4. Patent Law and Strategy Texts, applicable to pharmaceutical patents [Source 2].
  5. Industry Reports on Patent Expirations and Biosimilar Developments [Source 3].

This comprehensive analysis empowers informed decision-making for patent strategy, R&D direction, and market planning relating to U.S. Patent 9,724,353.

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Drugs Protected by US Patent 9,724,353

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Cubist Pharms Llc ZERBAXA ceftolozane sulfate; tazobactam sodium POWDER;INTRAVENOUS 206829-001 Dec 19, 2014 RX Yes Yes 9,724,353 ⤷  Get Started Free TREATMENT OF HOSPITAL-ACQUIRED BACTERIAL PNEUMONIA ⤷  Get Started Free
Cubist Pharms Llc ZERBAXA ceftolozane sulfate; tazobactam sodium POWDER;INTRAVENOUS 206829-001 Dec 19, 2014 RX Yes Yes 9,724,353 ⤷  Get Started Free TREATMENT OF VENTILATOR-ASSOCIATED BACTERIAL PNEUMONIA ⤷  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 9,724,353

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Canada 2848012 ⤷  Get Started Free
China 103945842 ⤷  Get Started Free
Eurasian Patent Organization 028342 ⤷  Get Started Free
Eurasian Patent Organization 201490590 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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