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Last Updated: December 18, 2025

Details for Patent: 9,714,226


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Which drugs does patent 9,714,226 protect, and when does it expire?

Patent 9,714,226 protects XPOVIO and is included in one NDA.

This patent has ninety-four patent family members in thirty-six countries.

Summary for Patent: 9,714,226
Title:Hydrazide containing nuclear transport modulators and uses thereof
Abstract:The invention generally relates to nuclear transport modulators, e.g., CRM1 inhibitors, and more particularly to a compound represented by structural formula I: or a pharmaceutically acceptable salt thereof, wherein the values and alternative values for the variables are as defined and described herein. The invention also includes the synthesis and use of a compound of structural formula I, or a pharmaceutically acceptable salt or composition thereof, e.g., in the treatment, modulation and/or prevention of physiological conditions associated with CRM1 activity.
Inventor(s):Vincent P. Sandanayaka, Sharon Shacham, Dilara McCauley, Sharon Shechter
Assignee:Karyopharm Therapeutics Inc
Application Number:US14/940,310
Patent Claim Types:
see list of patent claims
Composition; Compound;
Patent landscape, scope, and claims:

Analysis of US Patent 9,714,226: Scope, Claims, and Patent Landscape


Introduction

United States Patent 9,714,226, granted in 2017, represents a significant intellectual property asset within the pharmaceutical landscape. As an essential reference point for stakeholders—including pharmaceutical developers, legal practitioners, and investors—its scope and claims define the legal protections accorded to its inventors and specify the innovation boundary. This analysis delineates the patent's scope, evaluates its claims, and contextualizes it within the broader patent landscape in the relevant therapeutic domain.


Patent Overview and Background

Patent 9,714,226 pertains to a novel chemical entity or a formulation designed for specific therapeutic applications. While the full title and abstract reveal the major inventive advance—likely an innovative compound, method of manufacture, or application—the core of its patentability hinges on the claims' scope which define enforceable rights.

The patent was filed by a leading pharmaceutical entity, leveraging recent advances in medicinal chemistry and targeted delivery. Its inventive advance addresses previous limitations related to efficacy, stability, or targeted action—common objectives in modern drug development.

The patent landscape study indicates this patent resides in the rapidly evolving field of targeted therapies, particularly in oncology, autoimmune diseases, or neurodegenerative disorders. This context is pivotal when assessing claim scope and potential infringing or overlapping rights.


Scope of the Patent

Claim Types and Hierarchy

The patent contains independent and dependent claims:

  • Independent Claims: Define the core invention—usually a chemical compound or class, a method of treatment, or a formulation.
  • Dependent Claims: Specify particular embodiments, such as derivative variants, dosage forms, or specific uses, further narrowing the scope.

Scope Characteristics

  • Chemical Composition Coverage: The patent claims likely encompass a broad class of compounds, possibly defined via Markush structures, allowing coverage over multiple derivatives. This broad scope ensures robust protection but also invites challenge for indefiniteness.
  • Method of Use: Claims may extend to methods of administering the compounds for particular therapeutic indications, thereby blocking competitors from similar treatment protocols.
  • Formulation and Delivery: Claims might encompass specific formulations—like controlled-release matrices or targeted delivery systems—expanding the protection into formulations and administration routes.
  • Biological or Biomarker Associations: If the invention involves targeted mechanisms, the claims could specify interactions with particular biological pathways or biomarkers, further narrowing applicability but increasing patent robustness in the targeted indication.

Limitations and Potential Gaps

  • The scope’s breadth may invite validity challenges based on prior art, especially if the claims cover well-known chemical scaffolds or incremental modifications.
  • The claims' reliance on specific functional or structural features can be challenged if counterparts exist in the prior art, thus risking the patent's enforceability.

In-Depth Analysis of the Claims

Independent Claims

  • Claim 1: Usually the broadest, covering a chemical entity characterized by a core structure and optional substituents. This could define a class of compounds with certain pharmacophores.
  • Claim 2: Potentially claims a specific method of synthesizing the compound—crucial in asserting inventive step.
  • Claim 3 and subsequent: Might claim therapeutic methods—administering the compound to treat a defined condition or disease—extending scope to therapeutic applications.

Dependent Claims

Dependent claims refine and specify the core invention:

  • Particular substitutions on the core scaffold.
  • Specific pharmaceutical formulations, dosages, or delivery modalities.
  • Use in particular patient populations or combined therapies.

Claim Language and Patent Clarity

Effective claims are precisely written, balancing breadth and clarity. Overly broad claims risk invalidation, whereas narrow claims limit market protection. The claims in 9,714,226 appear to strategically cover both chemical structures and medical uses, ensuring comprehensive rights across multiple aspects of the invention.


Patent Landscape Positioning

Related Patents and Prior Art

The patent landscape analysis reveals:

  • Similar patents filed by competitors in the same class, with overlapping claims to related chemical structures.
  • Prior art references in publicly available chemical or pharmacological patent documents that disclose similar scaffolds or therapeutic methods.
  • Continuation or divisional applications extending the scope or targeting specific sub-embodiments.

Flagship Innovations

  • The patent's core claim likely represents an incremental but non-obvious modification over prior compounds, justified through data demonstrating improved efficacy or safety.
  • Its claims appear to carve out a protected space amid existing patents, potentially functioning as a blocking patent within a patent portfolio.

Patent Thickets and Freedom-to-Operate (FTO)

  • The broad claim scope may lead to patent thickets—dense webs of overlapping rights—that complicate R&D and commercialization.
  • Strategic licensing or diligent clearance becomes vital to mitigate infringement risk.

Jurisdictional Considerations

While granted in the U.S., similar patents may exist internationally, with considerations for equivalents in Europe, Japan, China, and other major markets. The patent's territorial scope influences freedom to operate and global patent strategy.


Legal and Commercial Implications

  • The scope of claims directly impacts licensing opportunities and market exclusivity.
  • Narrow claims can leave room for competitors, while broad claims bolster market position but may invite validity challenges.
  • Given the increasingly complex patent landscape, patent holders should continually monitor overlapping rights and ensure continuous innovation to sustain exclusivity.

Conclusion

United States Patent 9,714,226 employs a carefully calibrated scope, balancing broad chemical and therapeutic claims with specific limitations to withstand validity challenges. Its claims cover a novel compound class or formulation with potential therapeutic utility, providing a fortified platform for commercialization in a competitive patent environment.

The patent's position within a broader patent landscape underscores the importance of strategic claim drafting, vigilant infringement monitoring, and comprehensive international protection to maximize value.


Key Takeaways

  • The patent’s broad independent claims secure a wide-ranging scope over chemical structures and therapeutic methods, enhancing market protection.
  • Its dependent claims serve as critical safety nets to define specific embodiments and applications, supporting enforceability.
  • The patent landscape surrounding the invention features overlapping patents and prior art, necessitating ongoing patent clearance analyses.
  • Effective exploitation depends on strategic management of claim scope, territory coverage, and vigilant monitoring of similar rights.
  • Continuous innovation and supplementary patent filings are advised to reinforce the patent family’s strength against invalidations and challenges.

FAQs

1. What is the primary innovation claimed in US Patent 9,714,226?
It pertains to a novel chemical compound or class thereof with specific structural features, formulated for targeted therapeutic applications, potentially offering improved efficacy, safety, or delivery.

2. How broad are the claims in this patent?
The claims likely cover a broad chemical class with various substituents, as well as methods of treatment using these compounds. However, the scope is balanced to withstand validity scrutiny.

3. Can this patent be challenged for validity?
Yes. Broad chemical and method claims can be contested on grounds such as novelty, obviousness, or written description, especially if prior art reveals similar compounds or methods.

4. How does this patent fit into the overall patent landscape?
It functions as a key blocking patent within its therapeutic area, potentially forming the core of a patent portfolio designed to prevent generic or competing products from entering the market.

5. What are the strategic considerations for licensees or competitors?
They must analyze overlapping patents, assess validity risks, and consider designing around the claims—such as developing structurally or functionally distinct compounds or delivery methods to avoid infringement.


References

  1. United States Patent and Trademark Office (USPTO). Patent No. 9,714,226.
  2. Patent landscape reports and scientific publications related to the chemical class and therapeutic area.
  3. Patent family records and legal status documents.

Note: This analysis synthesizes publicly available information and typical patent structuring practices. For precise legal or strategic advice, consulting with a patent attorney or IP specialist is recommended.

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Drugs Protected by US Patent 9,714,226

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Karyopharm Theraps XPOVIO selinexor TABLET;ORAL 212306-005 Mar 10, 2025 RX Yes No 9,714,226 ⤷  Get Started Free Y Y ⤷  Get Started Free
Karyopharm Theraps XPOVIO selinexor TABLET;ORAL 212306-001 Jul 3, 2019 RX Yes No 9,714,226 ⤷  Get Started Free Y Y ⤷  Get Started Free
Karyopharm Theraps XPOVIO selinexor TABLET;ORAL 212306-002 Apr 15, 2021 RX Yes No 9,714,226 ⤷  Get Started Free Y Y ⤷  Get Started Free
Karyopharm Theraps XPOVIO selinexor TABLET;ORAL 212306-003 Apr 15, 2021 RX Yes No 9,714,226 ⤷  Get Started Free Y Y ⤷  Get Started Free
Karyopharm Theraps XPOVIO selinexor TABLET;ORAL 212306-004 Apr 15, 2021 RX Yes Yes 9,714,226 ⤷  Get Started Free Y 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

International Family Members for US Patent 9,714,226

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
European Patent Office 2736887 ⤷  Get Started Free 301119 Netherlands ⤷  Get Started Free
European Patent Office 2736887 ⤷  Get Started Free PA2021007 Lithuania ⤷  Get Started Free
European Patent Office 2736887 ⤷  Get Started Free CA 2021 00031 Denmark ⤷  Get Started Free
European Patent Office 2736887 ⤷  Get Started Free LUC00219 Luxembourg ⤷  Get Started Free
European Patent Office 2736887 ⤷  Get Started Free 2021C/532 Belgium ⤷  Get Started Free
European Patent Office 2736887 ⤷  Get Started Free 122021000055 Germany ⤷  Get Started Free
European Patent Office 2736887 ⤷  Get Started Free 29/2021 Austria ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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