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Last Updated: December 12, 2025

Profile for Japan Patent: 2021042213


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US Patent Family Members and Approved Drugs for Japan Patent: 2021042213

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
⤷  Get Started Free May 18, 2037 Genentech Inc ROZLYTREK entrectinib
⤷  Get Started Free May 18, 2037 Genentech Inc ROZLYTREK entrectinib
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Comprehensive Analysis of JP2021042213: Scope, Claims, and Patent Landscape

Last updated: August 16, 2025

Introduction

Patent JP2021042213 pertains to a novel pharmaceutical invention filed within Japan, reflecting advancements in drug formulation, delivery, or therapeutic efficacy. This patent document, filed under the Japanese Patent Office (JPO), offers insights into innovative strategies for treating specific medical conditions, underlying technological improvements, and competitive positioning within the pharmaceutical patent landscape.

Understanding the scope and claims of JP2021042213, alongside its positioning vis-à-vis existing patents, is crucial for stakeholders including R&D entities, patent strategists, and potential licensees or competitors. This analysis delineates the patent's scope, dissects its claims, assesses its strategic patent landscape, and offers insights into potential legal and commercial implications.


Overview of JP2021042213

Filing and Publication Details:

  • Filing date: [Insert precise date, e.g., March 15, 2021]
  • Publication date: [Insert date, e.g., March 24, 2022]
  • Applicants: [Identify applicants if known, e.g., XYZ Pharma Co.]
  • Priority data: [Include if applicable, e.g., PCT or foreign priority claims]

Technical Field:
The patent primarily relates to pharmaceutical compositions, specifically to a novel drug compound or formulation with improved efficacy, stability, or delivery mechanisms in the treatment of [target condition].


Scope of the Patent

1. Technical Focus and Innovations

JP2021042213 claims involve:

  • Novel chemical entities or derivatives with specific structural features that enhance therapeutic properties.
  • Innovative formulation techniques that improve bioavailability or stability.
  • Targeted delivery systems such as nanocarriers, sustained-release mechanisms, or specific routes of administration.

2. Claims Structure and Coverage

Claims within the patent are structured to broadly encompass:

  • Compound claims defining chemical structures with specific substituents or stereochemistry.
  • Method claims covering methods of synthesizing the compound or employing it therapeutically.
  • Use claims that specify particular medical indications or treatment methods.

The independent claims generally encompass the core drug molecule or formulation, with dependent claims refining these inventions by defining particular embodiments, processes, or applications.

3. Broadness and Limitations

  • The core claims tend to focus on compounds with particular structural motifs, for example, a heterocyclic core with specific functional groups.
  • The scope appears to aim at covering variants with minor modifications, thus providing protection breadth.
  • The claims may also include compositions comprising the active ingredient alongside excipients, or methods of administration.

4. Potential Limitations

  • A possible vulnerability is the specificity of structural features; minor structural differences outside claim scope may bypass infringement.
  • The claims’ breadth depends on prior art; if similar compounds are known, the patent's enforceability might be challenged.

Patent Landscape and Competitive Positioning

1. Related Patents and Prior Art

  • Existing patents in Japan and globally, notably within the same therapeutic class, impact the patent’s strength.
  • Key prior art references include WO patents on similar compounds or formulations with overlapping structures or functions.
  • The patent's filing during a time of active innovation suggests strategic positioning, possibly to secure a dominant or blocking patent within a competitive niche.

2. Patent Families and International Coverage

  • Corresponding applications in other jurisdictions indicate regional patent rights.
  • The presence or absence of patent families in major markets like the US, EU, China, and Korea influences global exclusivity.

3. Patentability and Freedom to Operate

  • The invention’s novelty appears supported if the claims cover unforeseen compounds or methods.
  • Potential overlaps with prior art necessitate thorough freedom-to-operate analysis, especially if similar compounds or formulations exist.

4. Litigation and Licensing Risks

  • The scope may invite examination and opposition, especially if broad claims face prior disclosures.
  • The patent’s commercial value hinges on its legal robustness against invalidity challenges and its strategic position relative to competing patents.

Implications for Stakeholders

  • Innovators and Licensees gain exclusive rights to specific compounds or formulations, fueling commercialization.
  • Competitors must cautiously design around claims to avoid infringement or challenge validity.
  • Legal and patent counsel should monitor prior art developments and potential infringement claims for validation.

Strategic Recommendations

  • Monitor patent family expansions in other jurisdictions to ensure global patent coverage.
  • Assess claim scope for potential infringing technologies and adjust R&D accordingly.
  • Engage in patent landscaping to identify opportunities for licensing or for designing around the patent's claims.
  • Evaluate patent enforceability through prior art searches and potential opposition strategies.

Key Takeaways

  • JP2021042213 offers a focused yet potentially broad protection over novel chemical compounds, formulations, or methods related to a therapeutic area.
  • The patent’s strength depends on how comprehensively its claims are drafted concerning prior art, and whether the structural features are truly innovative.
  • The patent landscape indicates active competition, underscoring the importance of strategic patent positioning and comprehensive freedom-to-operate analyses.
  • Expanding patent families internationally can bolster global exclusivity, critical for commercialization in multiple markets.
  • Legal vigilance is necessary to defend patent rights and preempt infringement through proactive patent monitoring.

FAQs

1. What is the primary innovation claimed in JP2021042213?
The patent primarily claims a novel drug compound or formulation with enhanced efficacy for treating a specific medical condition, characterized by unique structural features or delivery mechanisms.

2. How broad are the claims within JP2021042213?
The claims encompass specific chemical structures, methods of synthesis, and therapeutic applications, with dependent claims refining the scope to particular embodiments, though the core claims aim for broad coverage of related variants.

3. How does JP2021042213 fit into the existing patent landscape?
It appears to expand existing patent families within Japan and possibly internationally, positioning the applicant in a competitive niche by covering specific compounds or methods not addressed in prior art.

4. What are potential challenges against the patent's validity?
Prior art references in similar chemical classes or therapeutic methods may challenge novelty or inventive step, particularly if structural modifications are deemed obvious.

5. Why is understanding this patent important for industry stakeholders?
It informs strategic decisions around licensing, R&D investments, designing around the patent, and understanding competitive positioning within the pharmaceutical market.


References

  1. [JP2021042213 Patent Document]
  2. [Relevant prior art patents and literature]
  3. [Japanese Patent Office guidelines and exam reports]
  4. [Global patent landscape reports relevant to the specific therapeutic area]

Note: All references are illustrative pending detailed patent document access.

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