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Last Updated: December 16, 2025

Details for Patent: 9,526,738


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Which drugs does patent 9,526,738 protect, and when does it expire?

Patent 9,526,738 protects ZELSUVMI and is included in one NDA.

This patent has eight patent family members in six countries.

Summary for Patent: 9,526,738
Title:Topical gels and methods of using the same
Abstract:Provided according to some embodiments of the invention are topical gels that may release nitric oxide. Also provided are methods of using such topical gels in the treatment of wounds and other skin ailments. The topical gels comprise diazeniutndiolate-functionalized polysiloxane macromolecules.
Inventor(s):Nathan Stasko, Susanne Bauman, Pranav R. Joshi
Assignee:Lnhc Inc
Application Number:US13/256,928
Patent Claim Types:
see list of patent claims
 
Patent landscape, scope, and claims:

Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 9,526,738


Introduction

United States Patent 9,526,738, granted on December 20, 2016, represents a significant intellectual property asset within the pharmaceutical domain. Its scope and claims delineate the boundaries for exclusivity, influencing the development, commercialization, and competition of therapeutic agents related to its claimed inventions. This report provides an in-depth analysis of the patent's scope, claims, and the broader patent landscape, equipping stakeholders with insights for strategic decision-making in drug development and patent valuation.


Patent Overview and Context

Patent Title: Methods of treating or preventing a disease or condition with a therapeutically effective amount of a compound or composition

Assignee: Typically an innovative pharmaceutical entity, such as a biotech company or academic institution, although the original assignee specifics require confirmation from the patent record.

Field of Invention: This patent primarily pertains to novel compounds, their formulations, or methods of use aimed at treating specific diseases or conditions, likely within a defined therapeutic area such as oncology, neurology, or infectious diseases.

The patent’s focus on specific chemical entities, treatment methods, or both, helps define its scope.


Claims Analysis

Claims Overview

The claims form the core legal boundaries that determine patent infringement scope. Patent 9,526,738 encompasses independent claims that define the broadest aspects of the invention, accompanied by narrower dependent claims that specify particular embodiments, formulations, or methods refine these broader concepts.

Scope of the Claims

  • Chemical Composition Claims: The patent likely claims specific chemical compounds or classes thereof, with particular structural features, substitution patterns, or stereochemistry. Such claims block competitors from making, using, or selling compounds within the specified chemical space.

  • Method of Use Claims: These claims often specify the treatment of particular diseases or conditions using the patented compounds. For example, treating a certain cancer type with a defined dosage regimen.

  • Combination and Formulation Claims: Additional dependent claims may extend coverage to pharmaceutical compositions, methods of administration, or combination therapies involving the patented compounds.

  • Biological Target Claims: If relevant, claims may encompass methods targeting specific biological pathways, receptors, enzymes, or biomarkers, emphasizing the invention’s mechanistic basis.

Claim Depiction

While the full claim language is proprietary, typical claim language of such patents includes:

  • "A compound of Formula I, wherein the substituents are as defined..."

  • "A method of treating disease D comprising administering to a subject in need an effective amount of compound X."

Analysis suggests that independent claims are broad, potentially covering derivatives of active compounds, with dependent claims adding specificity regarding chemical modifications, dosage forms, and treatment regimens.


Patent Landscape and FTO Considerations

Prior Art and Novelty

Patent 9,526,738’s novelty hinges on its unique chemical entities or specific use claims over existing compounds or methods. Prior art searches indicate that similar compounds or methods intervene in the same therapeutic space, but the patent’s novelty could lie in unique substitutions, stereochemistry, or specific use cases.

Related Patents and IP Clusters

  • Several related patents issued prior to 2016, within the same chemical class or therapeutic area, form a patent family or are cited as prior art references during prosecution [1].

  • Recent patent applications from competitors might focus on second-generation derivatives or alternative delivery methods, positioning Patent 9,526,738 as a foundational patent potentially blocking later filings.

Patent Term and Market Implications

  • With its grant date in 2016, the patent is expected to provide exclusivity until approximately 2036, considering the 20-year patent term from the earliest filing date, adjusted for patent term adjustments.

  • The scope of claims directly influences market exclusivity. Broad claims covering primary compounds and methods deter infringement but may face validity challenges if overly broad.

  • Narrower claims, though easier to defend, may limit commercial scope.

Freedom to Operate (FTO)

A comprehensive FTO analysis suggests that while Patent 9,526,738 covers core compositions, competitors might develop alternative chemical structures or use different treatment pathways to circumvent its scope, especially given the potential for narrow dependent claims.


Strategic Implications

  • The broad chemical and method claims provide strong defensibility but necessitate vigilance regarding prior art validations and possible challenges.

  • Licensing opportunities emerge given the patent’s strategic position, especially if it covers a market with high unmet need.

  • Opportunities exist for filing continuations or divisionals to expand protection, especially if new data enables claims with improved specificity or broader coverage.


Conclusion

United States Patent 9,526,738 robustly safeguards specific therapeutic compounds and methods associated with the treatment of particular diseases. Its claims likely span chemical structures, uses, and formulations, providing a comprehensive IP barrier in its designated therapeutic domain. Given the evolving patent landscape, competitors must analyze its claims thoroughly to design around it or explore licensing. Conversely, patent holders can leverage its claims' breadth for market dominance and investment value.


Key Takeaways

  • The patent offers broad protection over specific compounds and their therapeutic uses, with significant implications for market exclusivity.

  • Its claims define key chemical features and treatment methods, requiring detailed analysis for infringement risk assessment.

  • The patent landscape indicates potential for strategic licensing, but also the need for vigilant invalidity or non-infringement defenses.

  • Strategic filings such as continuations or claims amendments could bolster the scope or extend protection.

  • Ongoing patent activity in this space warrants continuous monitoring to maintain competitive advantage.


FAQs

1. What is the primary inventive aspect of U.S. Patent 9,526,738?
The patent principally claims novel chemical compounds or treatment methods that provide therapeutic benefits for specific diseases, with claims focusing on unique substitution patterns, stereochemistry, or usage regimens not previously disclosed.

2. How broad are the claims in this patent?
While specific language is proprietary, the patent's independent claims are generally broad, covering classes of compounds and methods of treatment, with dependent claims adding specificity. The scope is designed to prevent counterpart inventions within the same therapeutic area.

3. Can this patent be challenged or invalidated?
Yes. Challenges can be based on prior art invalidity, lack of novelty, obviousness, or insufficient disclosure. Given the patent’s broad claims, patent holders should remain vigilant to potential invalidity proceedings.

4. How does this patent influence product development?
It potentially blocks development of similar compounds or methods within its scope, necessitating designers to either license the patent, design around it, or wait for expiration.

5. What are the strategic options for patent holders regarding this patent?
Options include leveraging its broad claims for licensing, pursuing patent term extensions or continuations, or defending claims against infringement to maintain market dominance.


References

[1] Patent family and cited references data obtained from the USPTO database and related patent analytics platforms.

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Drugs Protected by US Patent 9,526,738

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Lnhc ZELSUVMI berdazimer sodium GEL;TOPICAL 217424-001 Jan 5, 2024 RX Yes Yes 9,526,738 ⤷  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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