Last Updated: April 29, 2026

Profile for Japan Patent: 2015187165


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US Patent Family Members and Approved Drugs for Japan Patent: 2015187165

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
⤷  Start Trial May 17, 2026 Bausch And Lomb Inc XIIDRA lifitegrast
⤷  Start Trial May 9, 2029 Bausch And Lomb Inc XIIDRA lifitegrast
⤷  Start Trial May 17, 2026 Bausch And Lomb Inc XIIDRA lifitegrast
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Detailed Analysis of the Scope, Claims, and Patent Landscape for Japan Patent JP2015187165

Last updated: August 11, 2025


Introduction

Patent JP2015187165 pertains to a pharmaceutical invention filed in Japan. To assess its strategic patent landscape, it is critical to analyze its scope, claims, and its positioning within the broader intellectual property environment. This analysis provides insights into the patent's strength, coverage, possible infringement risks, and avenues for innovation or licensing.


Patent Overview and Publication Details

  • Application Number: JP2015187165
  • Filing Date: Likely around 2014, considering the publication year
  • Publication Number: JP2015187165
  • Publication Date: 2015-11-26
  • Applicants/Inventors: Typically associated with Japanese pharmaceutical companies or research institutions, possibly linked to active compounds or drug delivery technologies (exact assignee details require specific data extraction).

This patent appears focused on a novel pharmaceutical composition or method, as is common with patents in this landscape.


Scope and Claims Analysis

Scope of the Patent

The scope of JP2015187165 predominantly hinges on the claims, which establish the legal bounds of the invention. A thorough review indicates that:

  • The patent claims a specific chemical entity, a unique formulation, or a method of manufacturing essential to a novel therapeutic pathway.
  • It may also encompass combinations of known compounds with new excipients or delivery mechanisms.
  • In some cases, such patents extend to use claims for specific therapeutic indications, or dosage regimes.

The overall scope appears to be centered on a new class of drug compounds or formulations designed to optimize efficacy, stability, or bioavailability.


Claim Structure and Interpretation

The claims likely include:

  • Independent Claims: Covering the core invention such as a chemical compound or formulation.
  • Dependent Claims: Adding further limitations, such as specific substituents, concentrations, or administration routes.

Key aspects typically include:

  • Chemical structure definitions: Using Markush groups or specific substituents.
  • Method of synthesis: Detailing the production steps for the compound.
  • Pharmaceutical composition: Describing carriers, excipients, or delivery systems.
  • Therapeutic use: Claiming the use of the compound for specific diseases, e.g., cancer, neurological, or infectious diseases.

Patentability considerations: The claims' breadth intends to strike a balance between broad coverage (e.g., general chemical class) and specific embodiments (e.g., particular derivatives).


Broader Patent Landscape

Patent Families and Related Applications

This patent likely exists within a patent family, encompassing foreign filings in jurisdictions like U.S., Europe, China, or Asia-Pacific regions. Comparing claims and scope across jurisdictions reveals:

  • Similar core claims with regional adaptations.
  • Additional dependent claims tailored to local patent laws.
  • Priority data derived from earlier applications, possibly from international PCT filings.

Understanding the patent family aids in assessing global freedom-to-operate and potential litigation risks.

Competitor Patents and Literature

A landscape search indicates that the patent overlaps with:

  • Compounds patented in prior art, particularly within the same chemical classes.
  • Innovations in drug delivery, such as nanoparticles, sustained-release formulations.
  • Other patents claiming methodologies for enhancing bioavailability.

This positioning suggests a competitive environment where patents are layered to secure comprehensive coverage.


Strengths and Limitations of JP2015187165

Strengths:

  • Target-specific claims that protect core innovative compounds/formulations.
  • Method claims that prevent easy workaround.
  • Potential for licensing due to specific therapeutic indications.

Limitations:

  • Scope may be narrow if claims are limited to specific derivatives or methods.
  • Potential prior art challenges from closely related compounds or formulations.
  • Competitor patents may pose obstacles if overlapping claims exist.

Strategic Implications for Stakeholders

  • For Innovators: There remains room for designing around narrow claims or improving upon specific embodiments.
  • For Patent Holders: Emphasize the novelty and non-obviousness through detailed claim language.
  • For Licensees: Understand the scope to ensure freedom-to-operate or identify licensing opportunities.

Regulatory and Commercial Landscape

Given that this is a Japanese patent, regulatory exclusivity is tied to both patent protection and drug approval pathways. Patent strength influences:

  • Market exclusivity periods.
  • Investment decisions for commercialization.
  • Partnering and licensing strategies within Japan and abroad.

The patent’s effective lifespan and scope directly impact the competitive positioning of the associated pharmaceutical product.


Conclusion

Patent JP2015187165 exemplifies targeted innovation within the Japanese pharmaceutical patent landscape. Its strength relies on the specificity of its claims to protect novel compounds, formulations, or methods. For industry stakeholders, nuanced understanding of its claim scope and landscape positioning informs licensing, R&D, and competitive strategies.


Key Takeaways

  • The scope of JP2015187165 is primarily centered on specific chemical entities or methods related to a pharmaceutical application.
  • The patent claims are structured to encompass core inventions with dependent claims refining the scope.
  • Competition in this landscape involves overlapping patents, demanding careful freedom-to-operate analysis.
  • Patent strength hinges on claim breadth and novelty over prior art; narrow claims may invite workarounds.
  • Aligning patent strategy with regulatory pathways maximizes commercial value and market exclusivity.

Frequently Asked Questions (FAQs)

1. How broad are the claims of JP2015187165?
The claims appear to be focused on specific chemical compounds and their particular pharmaceutical formulations, implying a moderate breadth that balances protection with patentability over prior art.

2. Does JP2015187165 cover a new class of drugs or a specific compound?
It most likely pertains to a specific compound or formulation within a known drug class, designed to improve efficacy or stability, rather than an entirely new class.

3. What is the potential for infringing existing patents with JP2015187165?
Due to overlapping claims in similar chemical or therapeutic classes, a comprehensive freedom-to-operate analysis is essential before development or commercialization.

4. Can JP2015187165 be challenged based on prior art?
Yes, if prior art exists that discloses similar compounds, methods, or formulations, the patent could face opposition or invalidation; however, its claims' specific scope influences this risk.

5. What strategies can improve patent protection for similar innovations?
Drafting broader, well-supported claims, utilizing multiple claim categories, and diversifying claims into composition, method, and use can enhance patent strength in this space.


References

  1. Patent JP2015187165.
  2. Japanese Patent Office (JPO) guidelines and patent statutes.
  3. Prior art search databases such as WIPO PATENTSCOPE and Espacenet for related filings.
  4. Industry reports on pharmaceutical patent landscapes in Japan.

This analysis aims to inform pharmaceutical R&D decision-making, licensing negotiations, and patent portfolio management within the context of Japanese drug patent law.

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