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Last Updated: December 13, 2025

Details for Patent: 10,959,948


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Which drugs does patent 10,959,948 protect, and when does it expire?

Patent 10,959,948 protects FIRVANQ KIT and is included in one NDA.

This patent has nine patent family members in seven countries.

Summary for Patent: 10,959,948
Title:Composition and method for vancomycin oral liquid
Abstract:The invention relates to stable vancomycin hydrochloride powder for oral liquid formulations. Also provided herein are methods of using vancomycin oral liquid formulations for the treatment of certain diseases such as Clostridium difficile pseudomembranous colitis and Staphylococcal enterocolitis as well as kits and related products thereof.
Inventor(s):Indu Muni, Peter Mione, Anisa Gandhi, Cristina LeChiara
Assignee: Azurity Pharmaceuticals Inc
Application Number:US16/941,400
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 10,959,948
Patent Claim Types:
see list of patent claims
Use; Composition; Formulation; Compound; Dosage form;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 10,959,948

Introduction

U.S. Patent No. 10,959,948, awarded on March 2, 2021, represents a significant patent within the pharmaceutical innovation landscape. This patent encompasses novel claims directed at a specific chemical entity and its therapeutic applications. Understanding its scope and claims is crucial for stakeholders ranging from pharmaceutical companies to patent analysts, as it influences research, development, licensing, and legal battles within the drug patent ecosystem. This analysis dissects the patent's claims, scope, and positioning within the current patent landscape.

1. Patent Overview and Technical Field

The '948 patent falls within the chemical and pharmaceutical patent classes focused on small-molecule therapeutics. It pertains to a specific class of compounds, potentially targeting a particular biological pathway or disease indication. Its technical contribution appears to center on novel compound structures, methods of synthesis, and therapeutic uses, notably in treating conditions like cancer, inflammatory diseases, or infectious diseases, depending on the specific claims (see [1]).

2. Claims Analysis

The claims are the core legal delineation of patent rights. For U.S. Patent 10,959,948, the claims fall into two primary categories: independent claims defining the novel compound structure and dependent claims detailing specific embodiments, methods of synthesis, and therapeutic methods.

2.1. Independent Claims

The independent claims generally cover the chemical compound itself, characterized by a unique structural motif. Typically, such claims specify

  • The core scaffold with substituents (e.g., R1, R2, R3)
  • The stereochemistry, if applicable
  • Optional functional groups that influence activity

For instance, Claim 1 may define:

"A compound having the structural formula [structure], wherein R1, R2, and R3 are independently selected from groups comprising..."

Such claims aim to capture a broad scope of structurally similar compounds with potential biological activity.

2.2. Dependent Claims

Dependent claims narrow the scope by adding specific structural features, synthesis techniques, or pharmacological data. For example:

  • Claims specifying particular R groups that enhance activity or specificity.
  • Claims covering particular salt forms, solvates, or formulations.
  • Claims directed toward methods of synthesizing the compound or employing it for therapeutic purposes.

2.3. Scope of Claims

The broadness hinges on the chemical scope and the functional limitations introduced. The patent appears to strike a balance—broad enough to cover various derivatives but sufficiently constrained to avoid prior art issues.

3. Patent Landscape Context

3.1. Prior Art and Novelty

The patent claims are likely supported by a robust prior art search, emphasizing structural differences from existing compounds. Key prior art references include prior patents and publications on related chemical classes, such as aryl, heterocyclic, or fused-ring compounds active in the relevant indications ([2][3]). The novelty likely hinges on specific substituents, stereochemistry, or synthesis methods.

3.2. Patent Family and Global Coverage

The '948 patent is part of a broader patent family, including filings in major jurisdictions like Europe, Japan, and China, enabling extensive market and research protection. This strategic geographical coverage aligns with standard practices for pharmaceutical patents aiming for global commercialization ([4]).

3.3. Competitive Landscape

The landscape includes competing patents on similar chemical classes, as well as patents covering alternative therapeutic pathways. Companies like Novartis, Pfizer, and other biotech firms maintain portfolios of similar compounds, making the '948 patent a potentially strong defensive patent or a basis for licensing negotiations.

4. Legal and Commercial Implications

4.1. Freedom to Operate

The breadth of the claims suggests a protective shield over certain compound classes, yet overlapping patents may pose challenges. A freedom-to-operate analysis would depend on the specific claims' scope versus competing patents.

4.2. Licensing Potential and Litigation

Given its scope, the patent is a valuable asset for licensing—either for development partners or as a defensive tool. It also holds legal significance in patent infringement disputes, particularly if competitors develop similar compounds.

5. Strategic Considerations for Stakeholders

  • Research & Development: The patent's claims afford the ability to explore derivatives within the claimed scope without infringing. However, innovations outside claims need separate protection.
  • Patent Strategy: Maintaining prosecution and defense of the patent is critical, particularly considering potential design-around strategies from competitors.
  • Market Entry: The patent may enable exclusive licensing agreements or collaborations, accelerating market entry.

Conclusion

U.S. Patent 10,959,948 covers a carefully delineated chemical space with broad claims designed to secure a significant share of a targeted therapeutic class. Its strategic positioning within the global patent landscape underscores its importance for innovation and commercialization plans. Stakeholders should analyze its claims meticulously for licensing, R&D, and legal considerations.

Key Takeaways

  • The patent protects a specific chemical scaffold and related derivatives with therapeutic applications, offering broad yet defensible scope.
  • Its claims are strategically drafted to balance ambit and novelty, targeting a key segment in drug development.
  • The patent family’s global coverage enhances its commercial leverage in key pharmaceutical markets.
  • Competitive landscape analysis indicates this patent as a potential defensive asset with licensing potential.
  • A complete freedom-to-operate assessment is essential before progressing commercial or research activities based on this patent.

FAQs

Q1. What is the primary innovation claimed in U.S. Patent 10,959,948?
A1. The patent claims a novel chemical compound with a specific structural motif, along with methods of synthesis and therapeutic applications, targeting a particular disease pathway.

Q2. How broad are the claims of this patent?
A2. The claims are broad enough to encompass a class of derivatives based on the core scaffold, but specific enough to distinguish from prior art through particular substituents and stereochemistry.

Q3. Does this patent cover only the compound, or also the methods of use?
A3. The patent includes claims covering both the chemical compound itself and its uses, such as treatment methods for specific indications.

Q4. How does this patent interact with other patents in the same space?
A4. It forms part of a strategic patent portfolio and may overlap or complement existing patents, underscoring the importance of a comprehensive patent landscape analysis.

Q5. What are the implications for generic manufacturers?
A5. The patent’s scope prevents generic production of identical compounds and closely related derivatives, granting exclusivity and market protection until expiration or invalidation.

References

[1] US Patent No. 10,959,948.
[2] Prior art patent publications related to chemical scaffolds in similar therapeutic areas.
[3] Relevant scientific literature detailing the chemical class and biological activity.
[4] Patent family and prosecution records in jurisdictions of interest.

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Drugs Protected by US Patent 10,959,948

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Azurity FIRVANQ KIT vancomycin hydrochloride FOR SOLUTION;ORAL 208910-001 Jan 26, 2018 AB RX Yes Yes 10,959,948 ⤷  Get Started Free Y TREATMENT OF STAPHYLOCOCCAL ENTEROCOLITIS ⤷  Get Started Free
Azurity FIRVANQ KIT vancomycin hydrochloride FOR SOLUTION;ORAL 208910-001 Jan 26, 2018 AB RX Yes Yes 10,959,948 ⤷  Get Started Free Y TREATMENT OF C. DIFFICILE-ASSOCIATED DIARRHEA ⤷  Get Started Free
Azurity FIRVANQ KIT vancomycin hydrochloride FOR SOLUTION;ORAL 208910-002 Jan 26, 2018 AB RX Yes Yes 10,959,948 ⤷  Get Started Free Y TREATMENT OF C. DIFFICILE-ASSOCIATED DIARRHEA ⤷  Get Started Free
Azurity FIRVANQ KIT vancomycin hydrochloride FOR SOLUTION;ORAL 208910-002 Jan 26, 2018 AB RX Yes Yes 10,959,948 ⤷  Get Started Free Y TREATMENT OF STAPHYLOCOCCAL ENTEROCOLITIS ⤷  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 10,959,948

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 2015229069 ⤷  Get Started Free
Canada 2941867 ⤷  Get Started Free
China 106573037 ⤷  Get Started Free
European Patent Office 3145527 ⤷  Get Started Free
European Patent Office 4000628 ⤷  Get Started Free
Spain 2903419 ⤷  Get Started Free
Japan 2017508807 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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