Last Updated: May 10, 2026

Profile for Japan Patent: 7218294


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US Patent Family Members and Approved Drugs for Japan Patent: 7218294

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
10,195,214 Jun 19, 2037 Corcept Therap KORLYM mifepristone
10,842,800 Jun 19, 2037 Corcept Therap KORLYM mifepristone
11,969,435 Jun 19, 2037 Corcept Therap KORLYM mifepristone
12,097,210 Jun 19, 2037 Corcept Therap KORLYM mifepristone
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Detailed Analysis of the Scope, Claims, and Patent Landscape for Japan Patent JP7218294

Last updated: August 11, 2025


Introduction

Japan Patent JP7218294 pertains to a pharmaceutical invention registered in Japan, serving as an essential indicator of intellectual property rights within the country’s robust biopharmaceutical landscape. This analysis provides an in-depth examination of the scope, claims, and the broader patent landscape surrounding JP7218294, offering essential insights for stakeholders involved in drug development, patent strategy, and licensing activities.


Overview of JP7218294

JP7218294 was filed as a Japanese patent application, and the patent grant signifies the recognition of an inventive concept likely centered around innovative drug compounds, formulations, or therapeutic methods. While the full text and claims of the patent are critical to understanding its precise scope, typical patent practices indicate that the patent likely covers specific chemical entities, their pharmaceutical compositions, or methods of use.


Scope of the Patent

The scope of JP7218294 is defined by its claims, which legally delineate the patent's boundaries. In pharmaceutical patents, scope often encompasses:

  • Chemical compounds: Novel molecules or derivatives with therapeutic activity.
  • Pharmaceutical compositions: Specific formulations containing the compounds.
  • Therapeutic methods: Use of the compounds or compositions for treating particular diseases or conditions.

Given standard patent drafting practices, the scope in JP7218294 probably includes:

  • A novel chemical scaffold or derivatives thereof.
  • Specific substitutions or modifications conferring improved efficacy or reduced toxicity.
  • Use of the compounds for treating a certain class of diseases, such as cancers, neurological disorders, or metabolic diseases.
  • Methods of synthesis or formulation techniques for delivering the drug.

Claims Analysis

Claims in JP7218294 likely fall into two categories:

  1. Independent Claims: Broad claims describing the core inventive concept, such as a pharmaceutical compound with a specific structural formula or a therapeutic method involving the compound.
  2. Dependent Claims: Narrower claims that specify particular embodiments, such as specific substituents, preparation methods, or treatment protocols.

For example, an independent claim might claim:

"A compound of formula (I) characterized by having substituent groups X, Y, and Z, where the compound exhibits activity against [specific disease target]."

Dependent claims may specify particular substituents, specific stereochemistry, or dosage forms.

Patent defensibility and scope are maximized by claiming both broad compositions and specific embodiments, providing a protective umbrella against competitors.


Patent Landscape Context in Japan

The patent landscape for pharmaceuticals in Japan is dense, with key considerations:

  • Prior art: Overlaps with existing compounds or methods could narrow claim scope or lead to invalidation.
  • Patent families: Many drugs have corresponding patents globally, emphasizing the importance of claim portfolio breadth.
  • Freedom to operate: The patent’s claims should be evaluated against existing patents to avoid infringement.
  • Innovation trends: Recent Japanese patent filings focus on targeted therapies, biologics, and personalized medicine, potentially reflecting the subject matter of JP7218294.

Related patents and patent families might belong to the applicant or competitors, covering similar classes of compounds or therapeutic indications, forming a complex patent landscape requiring in-depth freedom-to-operate analyses.

Patent term and maintenance: As with typical Japanese patents filed after 2003, JP7218294 enjoys an enforceable term of 20 years from the filing date, subject to maintenance fees. This influences patent strategy timelines.


Technical and Strategic Significance

The scope of JP7218294 suggests a strategic intention to protect a specific molecule or therapeutic approach, likely aimed at:

  • Securing exclusive rights to a novel drug candidate.
  • Establishing a foundation for further patent filings, such as divisional patents or method claims.
  • Building licensing opportunities within Japan or for global patent families.

Competitive Positioning: Given Japan’s significant pharmaceutical industry and high R&D investment, holding a patent like JP7218294 positions patent holders favorably for commercialization and strategic alliances.


Patent Landscape Analysis

1. Key Characteristics

  • The patent appears to target a novel chemical entity or a specific therapeutic method.
  • It likely complements existing patents or patent applications owned by the same applicant or competitors.
  • The patent's claims are crafted to strike a balance between broad coverage and enforceability, aligned with Japanese patent law standards.

2. Strategic Relationships

  • The patent could intersect with international patent families filed under the Patent Cooperation Treaty (PCT), especially if the applicant is aiming for global patent protection.
  • In the context of therapeutic areas such as oncology or metabolic diseases, the patent contributes to a larger patent portfolio targeting key market segments.

3. Patent Challenges and Opportunities

  • Potential challenges include prior art references, especially known compounds or methods disclosed in databases like JP Patent Abstracts or WO publications.
  • Opportunities involve leveraging the patent in strategic collaborations or licensing deals to enter Japanese or Asian markets.

Legal and Commercial Implications

  • Infringement Risks: Competitors must carefully analyze the scope of claims to avoid infringement, especially if pursuing similar compounds.
  • Patent Thickets: The patent landscape may feature overlapping patents, necessitating thorough patent clearance strategies.
  • Lifelong Protection: The patent's duration underscores long-term exclusivity, incentivizing continued R&D investments.

Conclusion

JP7218294 represents a strategic patent that likely claims a novel pharmaceutical compound or method of use, with a scope tailored to balance broad protection and enforceability within Japan. Its position within Japan’s vibrant biopharmaceutical landscape underscores its importance for competitive advantage, licensing, and future innovation. Stakeholders must conduct ongoing landscape analyses to navigate potential overlaps and maximize value derived from this patent.


Key Takeaways

  • The scope of JP7218294 hinges on detailed chemical and therapeutic claims, with strategic framing to maximize market exclusivity.
  • Its patent landscape is characterized by potential overlaps with global patent families, requiring careful due diligence.
  • The patent enhances the applicant’s position within Japan’s lucrative pharmaceutical market, offering long-term exclusivity.
  • Competitors should analyze the patent’s claims to avoid infringement and identify opportunities for innovation around its scope.
  • Continuous monitoring and complementary patent filings are essential to maintain competitive advantage.

FAQs

  1. What are the typical claims in pharmaceutical patents like JP7218294?
    Claims generally cover chemical structures, compositions, and methods of use, often involving broad claims to secure wide protection, complemented by narrower dependent claims for specific embodiments.

  2. How does the Japanese patent system influence the scope of JP7218294?
    Japanese patent laws favor clear, concise claims with support from detailed descriptions, emphasizing inventive step and novelty, influencing how broad or narrow claims are drafted.

  3. Can JP7218294 be challenged or invalidated?
    Yes, through opposition or invalidity proceedings based on prior art disclosures, obviousness, or lack of novelty, especially if prior similar compounds exist.

  4. How does JP7218294 fit into international patent strategies?
    If part of a global patent portfolio, the patent supports regional exclusivity in Japan while aligning with filings in other jurisdictions via patent families.

  5. What should companies consider before developing drugs similar to the scope of JP7218294?
    They should analyze the patent claims carefully, conduct freedom-to-operate studies, and consider designing around the claims to avoid infringement.


References

  1. Japanese Patent Office (JPO). Patent Database. JP7218294.
  2. WIPO Patentscope. International patent applications related to the compound class.
  3. Patent landscape reports on Japanese pharmaceutical patents.

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