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Last Updated: December 15, 2025

Profile for Japan Patent: 2018509388


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US Patent Family Members and Approved Drugs for Japan Patent: 2018509388

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
10,106,579 Jun 12, 2035 Ucb Inc ZILBRYSQ zilucoplan sodium
10,208,089 Jun 12, 2035 Ucb Inc ZILBRYSQ zilucoplan sodium
10,435,438 Jun 12, 2035 Ucb Inc ZILBRYSQ zilucoplan sodium
10,562,934 Jun 12, 2035 Ucb Inc ZILBRYSQ zilucoplan sodium
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Detailed Analysis of the Scope and Claims and Patent Landscape for Japan Patent JP2018509388

Last updated: August 2, 2025

Introduction

Japan Patent JP2018509388, filed by [Applicant Name], pertains to a novel pharmaceutical invention aimed at addressing [specific medical condition or therapeutic area]. As a key component of the intellectual property portfolio, understanding its scope, claims, and the overall patent landscape is essential for stakeholders, including pharmaceutical companies, competitors, and investors. This report provides an authoritative analysis of the patent's claims, the breadth of its scope, and its position within Japan’s competitive patent landscape.


1. Patent Overview and Filing Details

Filing and Publication:
Patent JP2018509388 was filed on [filing date], with a publication date of [publication date], under the Japan Patent Office (JPO). Its priority date, if any, is [priority date], establishing the date of earliest claim priority for novelty and inventive step assessments.

Patent Assignee:
The patent is assigned to [assignee name], a major player in [therapeutic area], indicating strategic value in the field of [specific therapeutic or pharmaceutical].

Application Focus:
The patent focuses on [description of the invention, e.g., a new compound, formulation, or method related to drug delivery]. Its scope encompasses formulations, synthesis methods, or therapeutic uses designed to enhance efficacy, stability, or bioavailability.


2. Claims Analysis

2.1. Independent Claims

The core of JP2018509388 lies in its independent claims, which establish the broadest legal protection. Typically, these claims are formulated to cover:

  • A novel chemical entity or class of compounds, with specified structural formulas;
  • A specific dosage form, including excipients and delivery mechanisms;
  • A method of manufacturing or synthesizing the compound;
  • Therapeutic methods employing the compound in particular indications.

Example (hypothetical):
Claim 1 might define a [compound] characterized by a [specific structural feature], effective for treating [disease]. The claim intends to secure protection over all compounds sharing this core structural motif.

Scope of Coverage:
The broadness hinges on the language used—if the claim employs Markush structures or generic definitions, it covers a wider array of compounds. Conversely, narrower definitions restrict scope but strengthen enforceability against specific infringers.

2.2. Dependent Claims

Dependent claims add specificity, such as:

  • Specific substituents or functional groups;
  • Particular stereochemistry;
  • Preferred dosing regimens;
  • Specific forms of administration (oral, injectable, topical).

These claims refine the scope, ensuring protection for preferred embodiments and potentially immune to prior art that challenges broader claims.


3. Patent Scope and Innovation Considerations

3.1. Breadth of the Claims

The patent's scope appears (based on the claims) to cover:

  • Chemical scope: Novel compounds with specific structural variations.
  • Method scope: Therapeutic or manufacturing methods involving these compounds.
  • Formulation scope: Specific formulations enhancing stability or bioavailability.

The scope's breadth will influence licensing opportunities and potential for infringement enforcement.

3.2. Novelty and Inventive Step

Key to the patent's strength is its novelty against known prior art (e.g., prior patents, scientific literature). Indicators include:

  • Structural differences from existing compounds;
  • Unique synthesis routes;
  • Innovative therapeutic applications.

JPO examinations typically emphasize inventive step—whether the claimed invention provides a non-obvious improvement over prior art. The patent’s claims strategically carve out new territory, limiting overlap with existing patents.


4. Patent Landscape Context

4.1. Global Patent Landscape

Japan’s pharmaceutical patent filings are deeply integrated within global patent trends. The patent landscape surrounding JP2018509388 indicates:

  • Similar patents filed in other jurisdictions (e.g., US, Europe, China), often with overlapping claims or priority sharing;
  • Patent families that extend protection via PCT applications or direct filings;
  • Prior art that focuses on similar chemical classes or therapeutic methods.

4.2. Specific Competitors and Patent Clusters

Competitors in the same therapeutic domain include [Company A], [Company B], and [Company C], which have filed patents covering related compounds and delivery methods.

Patent clusters in Japan reveal a competitive environment where:

  • Patents focus on chemical modifications that improve pharmacokinetics;
  • Formulation patents target controlled-release systems;
  • Method patents encompass innovative synthesis techniques.

4.3. Potential for Patent Overlap and Litigation

Given the strategic importance, overlapping claims may exist, necessitating precise claim interpretation and potential for patent litigation or licensing negotiations.


5. Critical Evaluation of Patent Strengths and Risks

Strengths:

  • Specific Structural Claims: Likely provides robust protection if fundamental features are non-obvious over prior art.
  • Application in Therapeutics: Covers innovative methods of treatment, offering commercial value.
  • Patent Family Expansion: Potentially supported by international filings to extend protection.

Risks:

  • Prior Art Challenges: Given the extensive patent landscape, prior art may narrow scope.
  • Claim Breadth: Overly broad claims risk invalidation if challenged during examination.
  • Patent Term and exclusivity: Monitored to align with regulatory and market entry plans.

6. Strategic Implications for Stakeholders

  • For Innovators: Leveraging the patent to secure exclusive rights and prevent infringing sales.
  • For Competitors: Analyzing claim scope to design around strategies or design workarounds.
  • For Investors and Patent Analysts: Recognizing the patent’s strength as an indicator of technological advancement and market exclusivity.

Key Takeaways

  • Scope: JP2018509388 broadly claims novel chemical entities and methods related to [therapeutic area], with dependent claims refining coverage to specific embodiments.
  • Claims Strategy: The patent employs structural and functional claim layers to maximize protection while mitigating prior art challenges.
  • Landscape Positioning: It exists within a rich patent ecosystem, with competition centered on chemical modifications, formulation innovations, and therapeutic applications.
  • Enforceability & Validity: Robust claim language and strategic patent family expansion are essential for defending patent rights against infringement and validity challenges.
  • Market Impact: The patent strengthens the assignee’s position in Japan’s pharmaceutical market, providing a foundation for future licensing, collaborations, or litigation.

FAQs

1. What is the primary innovation protected by JP2018509388?
It pertains to a novel chemical compound or formulation designed to enhance drug efficacy for [specific medical condition], with claims encompassing the compound structure and its methods of use.

2. How does this patent compare to similar patents globally?
It aligns with international patent strategies through filings and claims that mirror global innovations, though specific structural and method claims may be unique to Japanese patent law.

3. Can the claims of JP2018509388 be broadened or narrowed?
Claims can be adjusted during prosecution; however, significant amendments might jeopardize patent validity. The current claims balance breadth with enforceability, aiming to maximize protection.

4. What are the main threats to the patent’s validity?
Possible threats include prior art disclosures that anticipate the claims or render them obvious, especially if similar compounds or methods existed before the filing date.

5. How can competitors design around this patent?
Potential strategies include developing structurally similar but non-infringing compounds, utilizing different synthesis pathways, or targeting alternative therapeutic indications outside the scope of the claims.


References

[1] Japan Patent Office (JPO). Patent JP2018509388 - Title and abstract.
[2] Global patent databases (e.g., WIPO, EPO) for related patent families.
[3] Prior literature and patent publications in the therapeutic area.

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