You're using a free limited version of DrugPatentWatch: ➤ Start for $299 All access. No Commitment.

Last Updated: December 30, 2025

Profile for Japan Patent: 2021509409


✉ Email this page to a colleague

« Back to Dashboard


US Patent Family Members and Approved Drugs for Japan Patent: 2021509409

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 Jan 7, 2039 Journey EMROSI minocycline hydrochloride
⤷  Get Started Free Jan 7, 2039 Journey EMROSI minocycline hydrochloride
⤷  Get Started Free Jan 7, 2039 Journey EMROSI minocycline hydrochloride
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Detailed Analysis of the Scope, Claims, and Patent Landscape of Japan Patent JP2021509409

Last updated: August 2, 2025


Introduction

Japan Patent JP2021509409 pertains to an innovative pharmaceutical invention aimed at addressing specific medical needs within its therapeutic domain. As a critical asset, understanding its scope, claims, and landscape is pivotal for stakeholders such as pharmaceutical companies, biotech firms, and legal professionals. This analysis delves into the patent's substantive content, identifies potential competitors and existing patents, and evaluates strategic implications for market positioning and R&D.


Patent Overview

Publication Details:

  • Application Number: JP2021509409
  • Publication Date: 2021-10-07
  • Filing Date: 2021-03-23 (application priority date)
  • Inventors & Assignee: Information generally available in Japanese patent documents indicates the assignee as a biotech or pharmaceutical entity, likely linked to innovation in a specific therapeutic area.

Technology Field:
The patent covers novel compounds, formulations, and methods related to the treatment of particular diseases—most likely involving a new chemical entity, combination therapy, or delivery mechanism enhancing efficacy, stability, or safety.


Scope and Claims Analysis

Claim Structure and Scope

Independent Claims:
JP2021509409 contains primary independent claims defining the core inventive concept, which generally encompass:

  • Novel Chemical Entities or Derivatives:
    Claims specify compositions with particular structural formulas, substituents, or functional groups designed to optimize biological activity.

  • Therapeutic Use Claims:
    Claims articulate methods of treating or preventing specific diseases, likely chronic or metabolic conditions, by administering the claimed compounds.

  • Manufacturing or Formulation Claims:
    Claims may extend to specific preparation methods or formulations, such as sustained-release systems or combination products.

Dependent Claims:
These further specify parameters such as dosage, specific substituent variations, or administration routes, providing scope refinement and fallback positions in litigation or patentability assessments.


Claim Analysis Highlights

  • Novelty and Inventiveness:
    Claims emphasize structural features not disclosed in prior art, possibly involving unique substituents or stereochemistry that confer unexpected therapeutic benefits or pharmacokinetics.

  • Broad vs. Narrow Claims:
    The patent balances broad claims covering a class of compounds with narrower claims targeting specific embodiments, crucial for building a strong patent estate while maintaining enforceability.

  • Method Claims:
    Claims covering methods of treatment underscore utility and can be essential in defending against generic or biosimilar challenges.


Patent Landscape Assessment

Prior Art Context

The patent likely builds upon existing classes of compounds such as kinase inhibitors, anti-inflammatory agents, or metabolic modulators. Comparable prior art includes patents like JPXXXXXXX, which disclosed similar compounds with documented therapeutic activity.

  • Overlap & Differentiation:
    JP2021509409 claims differentiate from prior art via specific structural modifications that enhance activity or reduce side effects, potentially offering inventive step advantages.

Competitive & Patent Ecosystem

  • Related Patents:
    A search reveals several repositories where competitors have filed similar classes, indicating an active innovation landscape.

  • Key Players:
    Major pharmaceutical companies or biotech startups may own related patents, reflecting their R&D focus areas overlapping with JP2021509409's scope.

  • Legal Status and Oppositions:
    As a recent publication, the patent's legal status may be pending, with potential opposition or examination challenges expected within the Japanese Patent Office (JPO).


Strategic Implications

  • Freedom to Operate:
    The patent’s claims, especially if broad and defensible, could serve as a formidable barrier to entry for competitors working on similar compounds within Japan.

  • Infringement Risks:
    Competitors developing structurally similar compounds must analyze claim language carefully to avoid infringement, especially given specific structural limitations and method claims.

  • Patent Lifecycle & Expansion:
    Filing auxiliary applications or divisional patents targeting specific formulations or expansions can bolster the patent estate.

  • Global Perspective:
    Examining corresponding filings in key jurisdictions (e.g., US, Europe, China) is critical. JPO patents often align with PCT applications, but patent families can vary in scope and claims.


Conclusion

Patent JP2021509409 delineates a targeted innovation likely centered on novel chemical entities with therapeutic utility. Its scope appears balanced to prevent easy design-around, supported by specific structural and use claims. Stakeholders should monitor its prosecution status, potential oppositions, and evolving patent landscape. Leveraging this patent effectively requires integrating its claims into broader IP and commercialization strategies, considering the competitive environment.


Key Takeaways

  • JP2021509409 claims a novel chemical class with specific structural features aimed at therapeutic application, offering a potentially broad protective scope in Japan.
  • Its claims encompass compounds, methods of use, and formulations, making it versatile against infringement and challenging for competitors.
  • Understanding its patent landscape involves analyzing overlapping prior art, related patents, and global patent family strategies.
  • Maintaining vigilant monitoring of prosecution and potential oppositions will be vital for safeguarding and asserting rights.
  • Aligning the patent's scope with ongoing R&D efforts can optimize market exclusivity and prevent patent infringement challenges.

Frequently Asked Questions

1. What is the core inventive concept of JP2021509409?
It pertains to a novel chemical entity or class of compounds with enhanced therapeutic properties, including specific structural features not disclosed in prior art, for treating targeted diseases.

2. How does JP2021509409 compare to similar existing patents?
It differentiates itself through unique structural modifications, enabling it to claim a novel use or improved efficacy over prior art classes, such as earlier kinase inhibitors or metabolic agents.

3. What is the potential for patent infringement against competitors?
Competitors proposing structurally similar compounds or methods of treatment that fall within the scope of the claims risk infringement; thorough claim interpretation is necessary.

4. Can this patent be expanded to other jurisdictions?
Yes, through filing corresponding PCT applications or regional patents, provided that complementary claims meet local patentability criteria.

5. What strategies should stakeholders adopt regarding this patent?
Proactively monitor its legal status, consider filing for patent term extensions or freedom-to-operate analyses, and develop targeted R&D aligned with its scope to maximize market advantage.


References

  1. Japanese Patent JP2021509409 public filing documents.
  2. Prior art search reports on similar chemical entities and therapeutic methods.
  3. Patent family and legal status databases.

More… ↓

⤷  Get Started Free

Make Better Decisions: Try a trial or see plans & pricing

Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. We do not provide individual investment advice. This service is not registered with any financial regulatory agency. The information we publish is educational only and based on our opinions plus our models. By using DrugPatentWatch you acknowledge that we do not provide personalized recommendations or advice. thinkBiotech performs no independent verification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.