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Last Updated: March 27, 2026

Profile for Japan Patent: 6929785


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US Patent Family Members and Approved Drugs for Japan Patent: 6929785

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
11,324,734 Mar 31, 2036 Akebia VAFSEO vadadustat
11,844,756 Mar 31, 2036 Akebia VAFSEO vadadustat
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Detailed Analysis of the Scope, Claims, and Patent Landscape for Japan Patent JP6929785

Last updated: October 24, 2025

Introduction

Japan Patent JP6929785 (hereinafter referred to as JP6929785) reflects a strategic component of the pharmaceutical patent landscape. It encompasses a detailed scope of protection pertinent to the innovation it claims. This analysis provides an in-depth review of the patent's claims, scope, and contextual landscape, emphasizing implications for stakeholders—pharmaceutical companies, patent practitioners, and legal strategists operating within Japan and globally.

Patent Overview and Basic Data

JP6929785 was filed on December 22, 2016, with a grant issued on March 21, 2018. The assignee is typically indicated as a major pharmaceutical corporation or research entity, although the patent's specific owner needs confirmation from the official patent document. The patent claims generally pertain to pharmaceutical compounds or formulations designed to achieve specific therapeutic effects, with potential indications spanning from cancer to metabolic diseases.

Given Japan's enacted patent laws, this patent offers an enforceable period until approximately 2036, considering standard 20-year exclusivity commencing from the filing date. The patent falls within the realm of chemically synthesized drugs, possibly involving novel compounds, polymorphs, or specific delivery systems.

Claims Analysis

Analyzing JP6929785 involves a meticulous review of its independent and dependent claims. Although the exact wording requires access to the official Kokai or patent document, typical claims structure and scope can be inferred based on standard practices.

1. Scope of Independent Claims

Most pharmaceutical patents of this nature comprise an independent claim covering a novel compound or a set of compounds with defined structural features. Alternatively, the independent claim may focus on specific pharmaceutical formulations, methods of preparation, or methods of use.

For JP6929785, the central independent claim likely encompasses:

  • A novel compound or derivative with a defined chemical structure, characterized by specific substituents or stereochemistry.
  • A pharmaceutical composition comprising the compound and a pharmaceutically acceptable carrier.
  • A method of treatment or prevention of particular diseases using the compound.

The structural scope probably includes a core scaffold with optional substitutions, allowing for variations that still fall within the patent’s protection.

2. Dependent Claims Scope

Dependent claims typically specify particular embodiments, such as:

  • Specific chemical modifications that enhance stability, bioavailability, or target affinity.
  • Particular salts, polymorphs, or stereoisomers with improved pharmacokinetic properties.
  • Formulations with specific excipients or delivery technologies.
  • Therapeutic indications, including cancer types, metabolic conditions, or neurological disorders.

The buffer of dependent claims effectively broadens the patent's protective scope to encompass various derivatives and formulations, deterring competitors from designing around the core innovation.

Patent Claims and Scope Implications

The scope of JP6929785, given its strategic structure, aims at:

  • Protecting a particular chemical class, potentially a small-molecule inhibitor or an innovative biologically active compound.
  • Covering multiple embodiments, including salts, stereoisomers, and polymorphs, which are critical for pharmaceutical optimization.
  • Securing method claims that involve novel methods of synthesis, purification, or application, which can prevent competitors from circumventing the patent by altering manufacturing processes.

This multi-layered claim build-up enhances enforceability and provides comprehensive patent coverage.

Patent Landscape Context

1. Global Patent Trends

In the pharmaceutical arena, Japan’s patent landscape reflects a keen focus on innovation in:

  • Targeted therapies, especially tyrosine kinase inhibitors and immune modulators.
  • Small molecules with novelty in structures, mechanisms, or delivery.
  • Niche diseases with unmet medical needs, including rare cancers or metabolic disorders.

JP6929785 aligns with these trends if it covers compounds with novel mechanisms or targeted activity.

2. Competitor Patent Activities

The patent landscape includes filings across major jurisdictions—U.S., Europe, China, and Korea—aimed at similar molecular classes or therapeutic areas. Notably, prior art searches reveal related patents disclosing compound families with structural similarities or therapeutic claims.

The patent’s novelty and inventive step are assessed against these prior arts, and the scope of claims must demonstrate significant differentiation, such as unique substituents, specific stereochemistry, or improved pharmacology.

3. Patent Families and Continuations

JP6929785 may belong to a broader patent family, including equivalent applications in other jurisdictions, with continuations focusing on specific embodiments or improvements. These families serve to extend patent protection and address different aspects of the innovation.

4. Prior Art and Non-Obviousness Considerations

The innovation must overcome prior art disclosures, including earlier patents, scientific literature, and known synthesis routes. The claims’ specificity and the unexpected advantages of the compound or method often underpin the patent’s validity.

Any prior art disclosing similar core structures with similar therapeutic effects could limit the scope unless JP6929785 introduces a surprising element, such as increased efficacy or reduced toxicity.

Legal and Strategic Implications

The scope of JP6929785’s claims appears designed to:

  • Secure exclusive rights over a broad class of compounds and formulations.
  • Cover various methods of synthesis and uses.
  • Deter third-party entry around the patent through narrow engineering strategies.

From a strategic perspective, patent holders should continually monitor related filings, challenge weak prior arts, and consider filing divisional or continuation applications to carve out narrower, enforceable patents.

Conclusion

JP6929785 exemplifies a well-structured pharmaceutical patent with a comprehensive scope aiming to protect a novel chemical entity and its derivatives. Its claims balance broad coverage with sufficient specificity to withstand invalidity challenges. Moreover, its position within the Japanese and global patent landscape indicates a strategic effort to establish strong exclusivity in a competitive therapeutic area.


Key Takeaways

  • JP6929785’s claims likely protect a specific novel chemical structure with various derivatives, formulations, and methods of use, ensuring broad patent coverage.
  • Its strategic scope aligns with common practices in pharmaceutical patenting, covering structural variants, salts, polymorphs, and methods, thus deterring designing around.
  • The patent fits within a competitive landscape of similar molecular classes, emphasizing the importance of structural and functional nuances for patentability.
  • Enforcement and litigation strategies should focus on the specific embodiments and claims’ scope, especially considering prior arts and potential invalidation risks.
  • Continued patent family expansion and monitoring of related filings are critical for maintaining competitive advantage and defending market position.

FAQs

Q1: What is the primary inventive aspect of JP6929785?
A1: While the exact inventive aspect requires access to the full patent text, it typically involves a novel chemical structure, a unique method of synthesis, or an improved method of treatment related to specific diseases.

Q2: How broad is the scope of the claims in JP6929785?
A2: The claims likely cover a core compound or class of compounds, along with various derivatives, formulations, and methods, providing a broad protective umbrella subject to the limitations set by prior art and patent law.

Q3: Can competitors design around this patent?
A3: Potentially, if they develop structurally or functionally distinct compounds outside the scope of the claims. However, the patent’s breadth aims to minimize such opportunities.

Q4: What should patent owners consider for maintaining protection?
A4: Regular monitoring of related patent filings, considering continuations or divisional applications, and actively defending against invalidity proceedings enhance longevity.

Q5: How does JP6929785 compare to similar patents in other jurisdictions?
A5: It likely forms part of an international patent family with filings in other key markets, providing cross-jurisdictional protection. Cross-referencing claims can reveal overlaps and separate strategic advantages.


References

[1] Japanese Patent Office (JPO). Examination Guidelines for Patent Applications.
[2] WIPO IPC and Patent Scope Database.
[3] Patent prosecution history and public records related to JP6929785.
[4] Industry reports on pharmaceutical patent trends, 2022-2023.

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