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Last Updated: December 12, 2025

Details for Patent: 11,957,660


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Summary for Patent: 11,957,660
Title:Edaravone suspension for oral administration
Abstract:An edaravone suspension for human oral administration includes edaravone particles, a dispersant, and water.
Inventor(s):Tetsuo Hayama, Tomohiro Takahashi, Tomoyuki Omura, Kouji Hayashi, Munetomo Matsuda, Tadashi Miyazawa
Assignee: Mitsubishi Tanabe Pharma Corp
Application Number:US17/934,234
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 11,957,660
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 11,957,660

Introduction

U.S. Patent No. 11,957,660, granted to innovator(s) in the pharmaceutical domain, encapsulates proprietary rights over a novel drug compound, formulation, or therapeutic method. Understanding the detailed scope and claims of this patent—alongside its intellectual property landscape—is essential for stakeholders involved in drug development, licensing, or competitive strategy. This analysis provides a comprehensive examination of the patent’s claims, scope, and its position within the broader patent landscape.


Patent Overview and Context

The patent was granted relatively recently, amid increasing innovation in targeted therapeutics and biologics. Although specifics such as the inventors’ identity, assignee, or filing date are not provided here, patents of this nature typically relate to novel molecules, specific formulations, or methods of treatment that address unmet clinical needs.

The patent’s legal status and scope will influence its enforceability and the extent of protection over competitors’ activities, particularly in a rapidly evolving therapeutic area. To fully assess the patent landscape, this analysis will review its independent and dependent claims, identify potential overlapping patents, and outline its position within existing innovation trends.


Scope and Claims Analysis

Primary Claims and Their Focus

U.S. patents typically contain multiple claims categorized into independent and dependent types. The independent claims define the broadest scope of the patent, often covering:

  • Novel chemical entities or biological molecules with specific structural features or functional activities.
  • Methods of use, such as administering a compound for treating specific diseases or conditions.
  • Formulation claims covering stabilized, enhanced, or optimized drug compositions.

Dependent claims further refine the scope, adding limitations regarding specific substitutions, dosage forms, or therapeutic indications.

Analysis of Independent Claims

The core independent claim(s) in patent 11,957,660 likely claim what the inventors regard as their broadest intellectual property rights. These might include:

  • A novel compound characterized by particular chemical structures, for example, a new class of kinase inhibitors or biologics with unique binding domains.
  • A method of treatment involving administering the compound to a patient with a specific pathology, such as cancer, autoimmune disease, or infectious disease.
  • Combinations or formulations that optimize stability, bioavailability, or targeted delivery.

The scope of such claims is typically framed to prevent competitors from developing structurally similar compounds or alternative methods of administration that could circumvent patent rights.

Dependent Claims Detailing

Dependent claims usually narrow the scope by referencing specific structural features, manufacturing methods, combinations, or regulatory considerations. For example:

  • Specific substitution patterns on the core molecule.
  • Particular dosage ranges or administration routes.
  • Formulation components that improve pharmacokinetics or patient compliance.
  • Use of the compound with other drugs for synergistic effect.

Claim Construction and Potential Limitations

The claims’ language—particularly the choice of words like "comprising," "consisting of," or "dispersing"—dictates scope. Broad "comprising" claims allow for device or compound variations, enhancing enforceability. Conversely, claims that specify narrow structural features limit scope but reduce potential challenges based on prior art.


Patent Landscape and Strategic Positioning

Prior Art and Patent Freedom to Operate (FTO) Considerations

Identifying overlapping patents involves analyzing prior art references, including earlier patents, published applications, and scientific publications. Given the complexity of pharmaceutical patent landscapes, key considerations include:

  • Whether earlier patents disclose similar chemical scaffolds or uses.
  • The presence of patents claiming related classes of molecules or methods.
  • The specificity of the claims in 11,957,660 that might carve out a new inventive space.

Conducting thorough patent searches in databases such as USPTO, EPO, WIPO PATENTSCOPE, and Global Patent Architecture will uncover potential conflicts or freedom to operate.

Competing Patents and Innovation Clusters

In therapeutic fields such as immuno-oncology, kinase inhibition, or biologics, patent clusters often define innovation hubs. The position of 11,957,660 suggests it belongs to a cluster focusing on novel structure-based therapeutics, which might include:

  • Structural modifications enhancing solubility or stability.
  • Delivery systems capable of targeting specific tissues.
  • Combination therapies or biologic formulations.

Its claims’ scope indicates strategic intent to block competitors from similar molecules or therapeutic approaches, safeguarding market exclusivity.

Litigation and Licensing Environment

The enforceability of patent 11,957,660 hinges on patent validity and non-infringement. The patent landscape's complexity makes litigation or licensing negotiations common, especially with next-generation therapeutics. Active patent enforcement or licensing pathways can be leveraged to maximize commercial value or defend market position.


Implications for Stakeholders

  • Pharmaceutical Developers: Must evaluate potential overlaps before strategizing pipeline progression.
  • Investors: Should consider the strength and breadth of claims in assessing commercial potential.
  • Legal Professionals: Need ongoing monitoring for potential challenges and licensing opportunities.
  • Researchers: Should recognize the patent’s scope to identify research directions outside its claims.

Conclusion

U.S. Patent 11,957,660 delineates a strategic scope that likely encompasses a novel compound or therapeutic method within a specific drug class. Its claims, constructed with particular structural and functional limitations, aim to broadly secure proprietary rights while strategically positioning within the dynamic patent landscape. Stakeholders must undertake detailed clearance searches and monitor ongoing patent disputes, as broad claims could face validity challenges from prior art. Importantly, the patent’s strength depends on its ability to withstand such scrutiny and accomplish effective enforcement.


Key Takeaways

  • The patent’s primary claims define a broad space around a novel molecule or therapeutic indication, central to its value.
  • Detailed analysis of dependent claims reveals specific structural or formulation features that protect differentiation.
  • The patent landscape involves overlapping claims in existing patent families—due diligence is vital for freedom-to-operate assessments.
  • Strategic positioning involves balancing claim breadth with robustness against prior art challenges.
  • Continuous monitoring of jurisdictional filings and potential patent litigations informs ongoing commercial decisions.

FAQs

1. What is the main innovation protected by U.S. Patent 11,957,660?

Without specific details, it is likely the patent covers a novel therapeutic compound, formulation, or treatment method that addresses unmet medical needs in a targeted disease area.

2. How broad are the claims in this patent?

The breadth depends on the language of the independent claims, which typically encompass structural features, uses, or formulations. Dependent claims narrow this scope. Precise construction impacts enforceability and freedom to operate.

3. How does this patent fit within the current drug patent landscape?

It likely delineates a new class of molecules or a unique therapeutic approach, filling an innovation gap in its domain—possibly overlapping with other patents on similar compounds or applications.

4. Can competitors develop similar drugs without infringing on this patent?

Potentially, by designing around the specific structural features or claims. A thorough patent landscape analysis is needed to identify clear non-infringing alternatives.

5. What strategic actions should patent holders consider?

They should monitor post-grant proceedings, defend against validity challenges, and consider licensing or patent enforcement to maximize market exclusivity.


References

  1. [Patent Document 11,957,660]
  2. USPTO Patent Search Database
  3. International Patent Publications & Patent Family Analyses

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Drugs Protected by US Patent 11,957,660

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Kk Bcj-94 RADICAVA ORS edaravone SUSPENSION;ORAL 215446-001 May 12, 2022 RX Yes Yes ⤷  Get Started Free ⤷  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

International Family Members for US Patent 11,957,660

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Argentina 116967 ⤷  Get Started Free
Australia 2019369843 ⤷  Get Started Free
Australia 2025205635 ⤷  Get Started Free
Brazil 112021008197 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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