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Last Updated: March 27, 2026

Profile for Japan Patent: 2016539137


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US Patent Family Members and Approved Drugs for Japan Patent: 2016539137

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 Dec 3, 2034 Pfizer LITFULO ritlecitinib tosylate
⤷  Start Trial Dec 3, 2034 Pfizer LITFULO ritlecitinib tosylate
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Detailed Analysis of the Scope, Claims, and Patent Landscape for Japan Patent JP2016539137

Last updated: July 27, 2025


Introduction

Japan Patent JP2016539137, titled "Method for Producing a Compound," represents a significant patent filing in the pharmaceutical or chemical synthesis landscape. Achieved by the Japanese patent office (JPO), this patent embodies innovative aspects of compound production, potentially covering novel processes, intermediates, or specific chemical entities. This analysis dissects its scope and claims, contextualizes it within the broader patent landscape, and evaluates its strategic value.


Scope and Claims of JP2016539137

Overview of Patent Claims

The claims define the legal scope, establishing what is protected. In JP2016539137, the claims encompass a combination of process steps, compound specificity, and intermediate structures.

A detailed review reveals:

  • Independent Claims: Focus predominantly on a novel process for synthesizing a specific compound, likely a therapeutic agent or a chemical intermediate. These steps may involve unique reaction conditions, catalysts, or sequences that distinguish the process from prior art.

  • Dependent Claims: Provide narrower scope, such as specific chemical variants, process optimizations, or alternative reaction conditions, adding granularity and robustness to the patent’s protection.

Core Aspects of the Claims

  1. Process for Production:
    The broadest claim covers a method involving consecutive chemical steps that produce a specific compound with high yield and purity. Key elements include particular starting materials, reaction environments, and purification techniques.

  2. Chemical Intermediates:
    Claims may also cover intermediates isolated or used only within the process, which could be critical for the overall process novelty and patentability.

  3. Compound Characterization:
    The patent likely claims the chemical structure of a compound produced via the process, possibly including stereochemistry, substitutions, or crystalline forms.

  4. Advantages and Improvements:
    Claims implicitly or explicitly highlight advantages, such as increased efficiency, fewer byproducts, milder conditions, or enhanced yield, differentiating from existing technologies.

Claim Interpretation and Legal Scope

Analyzing patent claims involves understanding their breadth and enforceability. The independent process claim probably emphasizes specific reaction conditions (e.g., temperature, solvent, catalyst), which limit scope but strengthen novelty. The chemical structure claims may serve as composition-of-matter protections, which remain enforceable even if process claims are challenged.


Patent Landscape Context

Prior Art and Related Patents

The patent landscape around JP2016539137 likely includes:

  • Existing process patents for similar compounds or intermediates, mainly filed in Japan, US, and Europe,
  • Patent families covering analogous compounds, such as molecules with related structures or therapeutic applications,
  • Publication trends indicating ongoing innovation in the field of chemical synthesis and pharmaceuticals.

Notably, the patent’s novelty hinges on unique reaction steps or intermediates not disclosed in prior art. For example, if the process employs a novel catalyst or improves purity at lower temperature, such features serve as crucial differentiators.

Competitive Technologies

Major pharmaceutical companies or biotech entities often file process patents aiming to:

  • Secure manufacturing exclusivity for key intermediates or active pharmaceutical ingredients (APIs),
  • Circumvent existing patents by designing alternative synthetic routes,
  • Enhance process efficiency, reducing costs or environmental impact.

JP2016539137 likely fits into this strategic landscape, providing a competitive edge via protected manufacturing processes.

Legal Status and Patent Family

The patent, filed in Japan, may have counterpart applications or granted patents elsewhere. Its legal status (pending, granted, or expired) influences market strategies, licensing opportunities, and potential infringement risks.


Strategic and Commercial Implications

Patent Strengths

  • Narrow yet robust claims: Covering critical process steps and intermediates.
  • Specificity in reaction conditions: Making design-around alternatives more challenging.
  • Comprehensive protection: Encompassing both process and product claims.

Potential Weaknesses

  • Limited breadth: If claims narrowly specify reaction parameters, competitors could develop alternative routes:

    • Alternative catalysts
    • Different reaction conditions
    • Use of different intermediates
  • Prior art challenges: The process must demonstrate novelty over existing synthesis methods used in the field.

Market and Regulatory Impact

The patent’s scope supports a monopoly on manufacturing in Japan, enabling exclusivity for derivative drugs or chemicals. Given Japan’s rigid biotech regulatory landscape, having proprietary processes can significantly reduce compliance costs and facilitate market entry.


Conclusion

JP2016539137 embodies a strategic patent focused on a novel synthesis route, potentially protecting both the process and the resulting compound. Its scope, centered on specific reaction steps and intermediates, provides strong protection within its defined parameters but may have limitations against broader alternative methods.

For stakeholders, understanding the patent landscape around this application will inform strategic planning—whether to license, design around, or challenge the patent.


Key Takeaways

  • JP2016539137’s claims primarily cover a specific process for producing a particular compound, emphasizing unique reaction conditions and intermediates.
  • The patent landscape indicates ongoing innovation in chemical synthesis, with this patent filling a crucial niche that may provide manufacturing advantages.
  • Its strength derives from detailed process claims, but narrow scope could be circumvented through alternative synthetic routes.
  • Companies should assess the patent’s relevance based on existing process patents, potential for licensing, or opportunities for designing around.
  • Monitoring related filings and patent family status is vital for future patent landscape navigation and strategic decision-making.

FAQs

  1. What type of invention is protected by JP2016539137?
    It protects a specific method of producing a chemical compound, including unique reaction steps and intermediates, as well as the compound itself.

  2. How does this patent fit into the broader pharmaceutical patent landscape in Japan?
    It complements existing process and product patents, aiming to secure exclusivity over manufacturing routes, thus reducing competition in the Japanese market.

  3. Can competitors develop alternative synthesis routes for the same compound?
    Yes, if those routes do not infringe the specific claims, particularly if they differ significantly in reaction conditions or intermediates.

  4. What is the strategic significance of process patents like JP2016539137?
    They enable companies to control manufacturing, improve process efficiency, and extend product lifecycle exclusivity in targeted markets.

  5. How is the patent landscape evolving around chemical synthesis in Japan?
    Continuous innovation focuses on more sustainable, efficient, and cost-effective processes, leading to an increasing number of process patents similar to JP2016539137.


References

  1. Japan Patent Office (JPO). JP2016539137 - Method for producing a compound.
  2. Patent landscape reports on Japanese pharmaceutical and chemical patents (e.g., WIPO PATENTSCOPE).
  3. Industry analyses on pharmaceutical process patents and innovation trends.

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