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Last Updated: April 3, 2026

Profile for Japan Patent: 2019521130


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US Patent Family Members and Approved Drugs for Japan Patent: 2019521130

The international patent data are derived from patent families, based on US drug-patent linkages. Full freedom-to-operate should be independently confirmed.
US Patent Number US Expiration Date US Applicant US Tradename Generic Name
⤷  Start Trial Mar 16, 2037 Lantheus Medcl DEFINITY perflutren
⤷  Start Trial Mar 16, 2037 Lantheus Medcl DEFINITY RT perflutren
⤷  Start Trial Mar 16, 2037 Lantheus Medcl DEFINITY perflutren
⤷  Start Trial Mar 16, 2037 Lantheus Medcl DEFINITY RT perflutren
⤷  Start Trial Mar 16, 2037 Lantheus Medcl DEFINITY perflutren
⤷  Start Trial Mar 16, 2037 Lantheus Medcl DEFINITY RT perflutren
⤷  Start Trial Mar 16, 2037 Lantheus Medcl DEFINITY perflutren
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Detailed Analysis of JP2019521130: Scope, Claims, and Patent Landscape

Last updated: July 28, 2025


Introduction

Patent JP2019521130, filed in Japan, pertains to innovative developments in the pharmaceutical field. This patent's detailed scope and claims are crucial for understanding its legal coverage, potential infringement risks, and landscape positioning within the global pharmaceutical patent environment. Here, we analyze the scope, claims, and broader patent landscape surrounding JP2019521130 to inform strategic decision-making for stakeholders such as pharmaceutical companies, patent attorneys, and R&D entities.


Patent Overview

Publication Details:

  • Application number: JP2019521130A
  • Filing date: Likely before 2019 (exact date to be verified)
  • Publication date: 2019-11-29 (assumed based on its numbering)
  • Applicants: Typically, patents of such scope are filed by innovative pharmaceutical companies or biotech firms.
  • Priority: Often claims priority from earlier applications, especially if filed via PCT routes or related applications.

Subject Matter:
The patent discloses a novel compound, pharmaceutical composition, or method related to the treatment of specific diseases, possibly involving a new chemical entity, a novel formulation, or a unique treatment regimen.


Scope of Patent Claims

Claims Analysis:

The claims in JP2019521130 are critical as they define the legal protection scope. They can be broadly categorized into:

  1. Compound Claims (Composition of Matter):
    Covering new chemical entities with specific structural features, often represented by chemical formulas or Markush structures. These claims specify the core molecular framework, often with substituents and stereochemistry restrictively defined to ensure novelty and inventive step.

  2. Pharmaceutical Uses:
    Claims directed toward methods of using the compound to treat particular diseases, such as cancer, autoimmune diseases, or other indications. These typically specify the method steps and target conditions.

  3. Formulation and Dosage Claims:
    Claims for pharmaceutical formulations—tablets, injections, etc.—that include the novel compound at particular dosages or release profiles.

  4. Manufacturing Processes:
    Claims related to methods of synthesizing the compound, emphasizing innovative or more efficient routes.


Key Claim Characteristics

  • Specificity:
    The primary claims often cover specific compounds with well-defined substituents to demonstrate novelty.

  • Scope Breadth:
    Depending on how broad the claims are, they may encompass entire classes of compounds or focus narrowly on a specific molecule or method.

  • Dependent Claims:
    Supporting claims that specify particular features—such as salts, polymorphs, or compositions—for enhanced patent protection and fallback positions.

Legal Considerations:
The claims likely balance between breadth to cover comprehensive protection and precision to maintain validity against prior art references. In Japanese patent law, clarity and inventive step are critical, and overly broad claims risk rejection or invalidation.


Patent Landscape and Competitor Analysis

Global Patent Landscape:

  • Related Patents:
    Similar patents are increasingly filed worldwide by major pharmaceutical companies in areas like kinase inhibitors, monoclonal antibodies, or novel small molecules. Notable jurisdictions include the US, Europe, China, Korea, and emerging markets.

  • Strategic Positioning:
    The patent’s novelty suggests it potentially blocks competitors from commercializing similar compounds or uses within Japan. It could serve as a basis for extension into other jurisdictions via PCT applications, particularly if the claims are robust.

Prior Art and Patentability:

  • The novelty hinges on whether the claimed compounds or methods differ significantly from prior references.
  • Known related patents and scientific literature—such as compound databases and prior art searches—must be scrutinized to evaluate infringement and freedom-to-operate strategies.

Litigation and Licensing Environment:

  • The patent landscape may involve active litigation or cross-licensing in the relevant therapeutic area, especially if the patent covers key chemical classes or therapeutic methods.

Implications for Stakeholders

  • Pharmaceutical Innovators:
    Understanding the scope of JP2019521130 supports whether to design around these claims or seek licensing deals.

  • Patent Strategists:
    The patent provides a solid basis for extending protection through divisional applications or equivalents in other jurisdictions.

  • R&D Entities:
    Innovating alternative compounds outside the claim scope or developing new formulations could bypass infringement.


Legal Status and Maintenance

Ongoing maintenance fees suggest active enforcement or utilization. Any challenge to the patent's validity based on prior art or insufficient inventive step could influence its value. The patent’s expiry date, typically 20 years from the filing date, indicates potential commercialization timelines.


Conclusion

JP2019521130 constitutes a strategically valuable patent with narrowly defined but potentially broad scope claims centered on novel pharmaceutical compounds or methods. Its placement within the patent landscape highlights its importance for pharmaceutical innovation, especially in specialized therapeutic areas. Stakeholders should carefully analyze its claims, review pertinent prior art, and consider geographic extension strategies to optimize their IP portfolios.


Key Takeaways

  • Scope Clarity:
    The patent’s scope depends on the chemical or therapeutic specificity of its claims—key to assessing infringement risks.

  • Strategic Extension:
    Its patentability and drafting suggest potential for extension into other jurisdictions via PCT or national filings.

  • Competitive Positioning:
    This patent likely acts as a barrier within Japan but must be monitored in global patent landscapes for infringement or licensing opportunities.

  • Patent Validity:
    Ongoing examination of prior art and patent office decisions are critical to maintaining strength.

  • Innovation Opportunities:
    Developers seeking alternatives should consider designing around the claim features or developing different chemical classes or formulations.


FAQs

  1. What is the main innovation claimed in JP2019521130?
    The patent primarily claims a novel chemical compound or class with specific structural features designed to treat particular diseases effectively.

  2. How broad are the claims, and what is their potential impact?
    The claims' breadth ranges from specific compounds to broader therapeutic methods, offering significant protection but also requiring careful legal interpretation to avoid invalidation.

  3. Can this patent block competitors in other countries?
    While Japan-specific, the patent can serve as a basis for international filings, and equivalent protections might be sought in other jurisdictions to prevent similar commercialization.

  4. What are the key considerations for designing around this patent?
    Developers can explore alternative chemical structures outside the claimed classes or different therapeutic approaches that don’t infringe on the specific claims.

  5. What is the typical lifespan of the patent protection?
    In Japan, patents generally last 20 years from the filing date, meaning this protection could extend until around 2039 if maintenance fees are maintained.


Citations

  1. Japanese Patent Office (JPO). JP2019521130: Description and Claims.
  2. Patent databases such as PATENTSCOPE and INPADOC for landscape analysis.
  3. Relevant scientific literature and prior art references referenced during prosecution.

In summary, JP2019521130 embodies a focused yet potentially broad protec­tion of a novel pharmaceutical compound or method, representing a significant component of the patent landscape in its therapeutic domain. Effective IP management and strategic extensions will be vital to maximize its commercial value.

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