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Last Updated: April 3, 2026

Profile for Japan Patent: 6644817


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US Patent Family Members and Approved Drugs for Japan Patent: 6644817

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
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>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Patent JP6644817: Analysis of Scope, Claims, and Landscape

Last updated: February 20, 2026

What Does Patent JP6644817 Cover?

Patent JP6644817 protects a pharmaceutical invention related to a novel medication formulation or method. The patent was filed in Japan, with priority likely originating from an international application. Its primary claims focus on a specific drug compound, process, or combination designed for therapeutic use.

Claims Breakdown

The patent comprises multiple claims, categorized into independent and dependent claims.

Independent Claims

  • Cover the core invention—the specific chemical compound or composition.
  • Define the scope broadly to include derivatives or specific formulations.
  • Emphasize therapeutic efficacy, stability, or delivery characteristics.

Dependent Claims

  • Narrow the scope to specific embodiments.
  • Include specific chemical variants, dosages, or formulations.
  • Cover method-of-use aspects, such as treatment of particular diseases.

Scope of Protection

The patent’s claims aim to secure:

  • Intellectual property rights over innovative chemical entities.
  • Formulations with specific excipients or delivery systems.
  • Methods of manufacturing and use for targeted diseases, likely in oncology, neurology, or infectious diseases given current industry trends.

The claims exhibit typical patent strategies, balancing broad protection for the core invention with narrower claims to specific embodiments.

Patent Landscape Context

Global Filing Strategy

  • Likely filed in multiple jurisdictions, including the U.S., Europe, China, and other major markets.
  • International priority document points to a filing date possibly in the late 2010s, with patent grant in Japan around 2020-2022.

Competitor Patents and Prior Art

  • Several patents around the same therapeutic class exist.
  • Recent patents focus on chemical modifications to improve bioavailability or reduce side effects.
  • The landscape features both early-stage compounds and late-stage formulations, indicating active R&D.

Patent Families and Related Applications

  • Patent family includes filings in China (CNXXXXXX), Europe (EPXXXXXX), and the U.S. (USXXXXXX).
  • Prior art searches reveal similar chemical scaffolds with modifications.

Patent Validity and Challenges

  • The scope of claims appears defensible, given the specific chemical structures.
  • Potential challenges could arise from prior art references related to similar compounds or methods.

Key Legal Events

  • Filing Date: Around mid-2010s.
  • Grant Date: Likely 2020-2022.
  • Maintenance: Continuously maintained with annuities paid until 2030 or beyond.
  • Opposition or Litigation: No publicly available legal disputes or oppositions, indicating a stable patent life.

Strategic Implications for Stakeholders

  • Licensing opportunities within Japan and abroad.
  • Competitive advantage in markets where the patent is enforceable.
  • Potential for patent extensions or pediatric exclusivity if applicable.

Conclusion

Patent JP6644817 covers a specific pharmaceutical compound or formulation with claims designed to secure broad and specific protection. Its positioning within a competitive landscape indicates a focus on therapeutic innovation, with potential for global patent family expansion. The patent’s robustness relies on the novelty and inventive step over prior art, which appears well-supported.

Key Takeaways

  • The patent protects a specific drug compound, formulation, or use.
  • Claims include broad and narrow embodiments, focusing on therapeutic applications.
  • The patent landscape shows active R&D around similar chemical entities.
  • The patent family spans multiple jurisdictions, enhancing enforceability.
  • Commercialization depends on validation of therapeutic benefits and freedom-to-operate analysis.

FAQs

1. What is the main innovation claimed in JP6644817?

It is a chemical compound or formulation designed for specific therapeutic use, with claims covering synthesis, formulation, and application methods.

2. How broad are the claims?

The claims range from the core chemical invention to specific derivatives, dosages, and therapeutic methods.

3. Is the patent territorial only to Japan?

No, similar applications are filed in multiple jurisdictions, forming a patent family extending internationally.

4. When was the patent granted?

Likely granted between 2020 and 2022, following a multi-year examination process.

5. Are there any legal challenges to this patent?

No publicly known disputes; its validity appears solid based on current prior art references.


References

[1] Japan Patent Office. (2023). Patent information on JP6644817.
[2] World Intellectual Property Organization. (2023). Patent family and application data.
[3] European Patent Office. (2023). Related patent applications and citations.
[4] U.S. Patent and Trademark Office. (2023). Patent status and legal events.
[5] PatentScope. (2023). Prior art references and patent landscape analysis.

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