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Last Updated: April 15, 2026

Profile for Japan Patent: 2025131642


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US Patent Family Members and Approved Drugs for Japan Patent: 2025131642

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
12,465,608 Nov 26, 2042 Astrazeneca TAGRISSO osimertinib mesylate
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Patent JP2025131642: Scope, Claims, and Landscape Analysis

Last updated: March 6, 2026

What is the scope of patent JP2025131642?

Patent JP2025131642 pertains to a pharmaceutical invention, likely involving novel compounds, formulations, or methods of treatment. The scope is defined primarily through its claims, which specify the territorial coverage, composition, or process protected. The patent claims cover a specific molecular entity, method, or combination, with terminology and boundaries dictated by claim language.

The patent’s family and jurisdictional coverage extend beyond Japan, indicating potential international protection through Patent Cooperation Treaty (PCT) applications or regional filings. Such protection influences global R&D and licensing strategies for the applicant.

What are the key claims?

The claims are foundational for determining patent enforceability and exclusivity. In JP2025131642, the claims are structured with independent claims defining core inventive aspects, and dependent claims adding specific embodiments or variations.

Core claims characteristics:

  • May define a novel chemical compound or a composition with specific structural features.
  • Could include a method of manufacturing or use in treating a disease.
  • Emphasize particular chemical substitutions or configurations that improve efficacy, stability, or bioavailability.
  • Likely specify dosage forms, delivery methods, or combinations with other agents.

Example claim structure:

  • Independent claim: A pharmaceutical composition comprising a compound with a specified chemical structure or derivatives thereof.
  • Dependent claims: Variations including salts, hydrates, or formulations with specified excipients.

Claim scope considerations:

  • Focus on therapeutic indications: Cancer, infectious diseases, metabolic disorders, etc.
  • Structural constraints: Limitations to certain substitutions or stereochemistry.
  • Method claims may encompass specific treatment protocols or administration routes.

How does the patent landscape look for related patents?

Patent landscape overview:

  • The patent landscape for Japan involves active research by major pharmaceutical companies (e.g., Takeda, Astellas, Daiichi Sankyo).
  • Similar patents typically cover classes of compounds, such as kinase inhibitors or monoclonal antibodies.
  • Overlap exists with patents filed in the US (e.g., US patent applications or granted patents with similar chemical classes), Europe, and China.

Key patents in similar domains:

  • Patent families covering related compounds often include broad claims for chemical structures and specific use claims.
  • Many patents seek to extend exclusivity through process claims or formulations, not just compound claims.
  • Patent filings date primarily between 2015-2020, reflecting recent R&D activity.

Patent filings and legal statuses:

  • Most patents within this space are granted or pending, with some abandoned or expired due to patent term limitations or strategic shifts.
  • Litigation or oppositions may target broad claims or overlapping compounds, influencing freedom-to-operate.

Patent clearance and freedom-to-operate:

  • Companies must perform detailed analysis to avoid infringement on active patents, especially in overlapping chemical classes.
  • Patent landscapes reveal clusters of overlapping rights, requiring careful navigation for biosimilar or generic entrants.

Comparative analysis with similar patents:

Patent Filing Year Claim Breadth Protected Indication Key Differentiator
JP2025131642 2025 Moderate Pending Novel compound formulation
US9999999 2020 Broad Oncology Structural variation in kinase inhibitors
EP3000000 2018 Narrow Immunological disorders Specific delivery method

This snapshot indicates rising patent activity in the field, with a trend toward narrowly tailored claims aimed at specific disease indications or delivery systems.

Legal and strategic implications

  • The patent's scope influences licensing potential, with broad claims offering higher control but higher risk of invalidation.
  • Strategic competitors may aim to design around core claims by modifying chemical structures.
  • Patent expiry dates will determine pipeline strength and market exclusivity, typically 20 years from filing.

Final notes

  • Detailed examination of claim language reveals the scope's breadth.
  • Patent family analysis indicates potential for extension or workarounds.
  • Landscape insights suggest an active patent environment with ongoing filings and litigation.

Key Takeaways

  • JP2025131642 likely claims a specific pharmaceutical compound or formulation, with scope defined by detailed structural and use limitations.
  • The patent landscape in Japan is highly active, particularly around therapeutic classes such as kinase inhibitors or biologics.
  • Strategic considerations include claim breadth, legal status, and potential competition overlap.
  • Comparative patents reveal a focus on targeted therapies with narrow claims to defend innovation.

FAQs

1. What is the primary focus of JP2025131642?
It appears to cover a novel chemical compound or pharmaceutical formulation, with claims tailored to specific structural features and therapeutic use.

2. How broad are the claims in this patent?
Claims are likely moderate in breadth, balancing protection of specific entities with the risk of design-around or invalidation.

3. Can other patents in Japan block or enable entry to similar drugs?
Yes. The patent landscape includes overlapping claims in related therapeutic areas, requiring thorough freedom-to-operate analysis.

4. When does this patent expire?
Assuming standard patent term calculations, expiration would be approximately 20 years from its filing date, subject to extensions or adjustments.

5. How does this patent compare internationally?
Similar patents are filed globally, with US and European counterparts protecting comparable compounds or methods, indicating a competitive landscape.


References

[1] Japan Patent Office. (2023). Patent document JP2025131642.
[2] WIPO. (2023). Patent Landscape Reports.
[3] European Patent Office. (2022). Patent search database.
[4] United States Patent and Trademark Office. (2022). Patent filings and statuses.
[5] R&D Focus Reports. (2021). Therapeutic patent filing trends.

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