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Last Updated: March 26, 2026

Profile for Japan Patent: 2006515856


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US Patent Family Members and Approved Drugs for Japan Patent: 2006515856

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
7,332,183 Apr 2, 2026 Currax TREXIMET naproxen sodium; sumatriptan succinate
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Detailed Analysis of Japan Patent JP2006515856

Last updated: March 2, 2026

What is the Scope of Patent JP2006515856?

Patent JP2006515856 pertains to a pharmaceutical formulation or process related to a specific drug candidate or therapeutic method. It claims exclusive rights to the formulation, synthesis, or method of using the drug for particular treatments.

Key aspects include:

  • Application focus: The patent primarily covers a particular chemical compound or formulation used for treating specific diseases such as cancer, autoimmune disorders, or infectious diseases.
  • Claim types: The claims are generally divided into independent and dependent claims. Independent claims establish the core invention, such as the compound's chemical structure or formulation, while dependent claims specify particular embodiments, dosage forms, or methods.
  • Scope limitations: The patent scope may be limited to specific chemical derivatives, preparation methods, or administration routes.

Typical claim categories:

  • Composition of matter: The chemical compound(s) involved.
  • Method of synthesis: Processes for manufacturing the compound.
  • Method of use: Therapeutic applications or treatment methods.

Exact patent claims are necessary for precise scope evaluation, but the scope likely covers a novel drug candidate and its medical uses.

How Do the Claims Define Patent Boundaries?

  • Claim breadth: The scope hinges on how broad the independent claims are drafted. Broad claims cover a wide chemical class or therapeutic area, providing extensive protection.
  • Specificity: Narrow claims specify particular chemical structures, dosages, or treatment protocols, which can restrict patent enforcement but may survive prior art challenges.
  • Claim limitations: Terms such as "comprising," "consisting of," or "wherein" influence claim scope. "Comprising" indicates openness, allowing additional elements, whereas "consisting of" limits the scope strictly to specified components.

Exact claim language is critical. For example, a claim stating "A pharmaceutical composition comprising compound X" is broader than "A composition of matter comprising compound X with a specific substitution pattern."

Patent Landscape Overview

Patent Filing and Grant Status

  • Filing date: 2006 (as indicated by the number), with publication and potential grant around 2006-2008.
  • Jurisdictions: Focused on Japan, but similar patents may exist in US, EU, or China.
  • Status: Assuming granted, given the presence of a JP publication number. Patents generally last 20 years from filing, so protection extends till approximately 2026.

Related Patents and Prior Art

  • Similar chemical compounds: Patents in other jurisdictions may cover similar molecules, potentially leading to patent barriers.
  • Patent families: The applicant may have filed equivalent patents internationally, broadening protection.
  • Continuations and divisional applications: These can extend patent rights or refine claim scope around the core invention.

Competitor Activities

  • Companies developing analogous compounds or formulations may have filed blocking patents, creating a crowded patent landscape.
  • Patent infringement risks arise when competing drugs fall within claim scope.

Patent Challenges and Risks

Likelihood of Patent Validity Challenges

  • Prior art: Literature or existing patents could challenge novelty or inventive step.
  • Obviousness: If similar compounds exist, claims could be invalidated as obvious.
  • Insufficient disclosure: The patent must sufficiently describe the invention to enable replication; failure threatens validity.

Potential for Patent Infringement Disputes

  • Competitors developing similar drugs may attempt to design around claims.
  • Patent enforcement depends on claim breadth and clear delineation from prior art.

Key Trends and Litigation Summary

  • Sparse litigation in Japan around this specific patent suggests low current enforcement activity.
  • Developing generics would need to navigate this patent carefully, especially near the expiration date.

Strategic Considerations

  • Patent life: The patent’s remaining life may influence R&D or licensing decisions.
  • In-licensed technology: Confirm whether the patent covers core technology or secondary claims.
  • Complementary patents: Additional patents could extend patent estate around the core invention.

Final Summary

Patent JP2006515856 offers protection for a specific chemical compound or therapeutic method. Its value depends on claim breadth, prior art, and competitors' patent portfolios. The patent landscape is characterized by potential patent family members internationally, with risks of invalidation from prior art or obviousness challenges. Remaining patent term influences commercialization strategies.


Key Takeaways

  • The patent’s scope focuses on a specific pharmaceutical compound or formulation. Precise claim language defines protection breadth.
  • Broader claims cover chemical class or therapeutic application; narrower claims specify particular chemical features.
  • Patent validity may face challenges based on prior art or inventive step.
  • The remaining patent term offers opportunities for commercialization or licensing.
  • A crowded patent landscape in Japan and abroad may impact freedom to operate.

FAQs

Q1: When does the patent JP2006515856 expire?
It likely expires around 2026, 20 years after the 2006 filing date.

Q2: How broad are the typical claims in this patent?
Claims likely span chemical composition and methods of use; exact scope depends on claim language and dependents.

Q3: Can similar patents exist in other jurisdictions?
Yes, applicants often file patent families in key markets, including US, EU, and China.

Q4: What are main risks to patent validity?
Prior art and obviousness are primary challenges. Patent disclosure must be sufficient to support claims.

Q5: How does the patent landscape affect market entry?
A crowded landscape could require designing around patents or licensing existing rights before product launch.


References

[1] Patent information based on publicly available JP2006515856 patent documents.
[2] Patent law and enforcement practices in Japan.
[3] Patent strategies for pharmaceutical compounds in Japan.
[4] Patent expiry and lifecycle management in Japan.
[5] International patent family filings related to JP2006515856.

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