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Last Updated: December 12, 2025

Profile for Japan Patent: 2023091072


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US Patent Family Members and Approved Drugs for Japan Patent: 2023091072

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
11,090,278 May 16, 2040 Nexus EMERPHED ephedrine sulfate
11,241,400 May 16, 2040 Nexus EMERPHED ephedrine sulfate
11,464,752 May 16, 2040 Nexus EMERPHED ephedrine sulfate
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Last updated: July 30, 2025

alysis of the Scope, Claims, and Patent Landscape for Japan Patent JP2023091072


Introduction

Japan Patent JP2023091072 pertains to a novel pharmaceutical compound or formulation—details of which are embedded in its claims—aimed at addressing a specific therapeutic need. A comprehensive understanding of its scope, claims, and patent landscape sheds light on its commercial potential, legal robustness, and competitive positioning within the global pharmaceutical patent arena. This analysis integrates current patent data, strategic considerations, and contextual market insights to provide a professional assessment for stakeholders.


Patent Overview and Filing Context

JP2023091072 was published on March 30, 2023. It is part of Japan’s extensive patent framework for innovative pharmaceuticals, likely filed in late 2022 or earlier, as per Japan Patent Office (JPO) publication standards. The patent application likely claims a new chemical entity, a novel formulation, or a specific method of use—common in pharmaceutical patents. The applicant’s strategic filing aims to secure exclusive rights in Japan, potentially serving as an entry point for broader patent filings in other jurisdictions such as the US, Europe, or Asia.


Scope of the Patent: Core Aspects

1. Core Invention and Technical Focus

The patent primarily claims a specific chemical compound or a class of compounds with demonstrated or predicted therapeutic activity, possibly targeting indications such as neurodegeneration, inflammation, cancer, or infectious diseases. Alternatively, it may relate to a novel formulation—such as a controlled-release system—or a specific method of administering the compound for improved efficacy or reduced side effects.

2. Therapeutic and Composition Claims

The claims may encompass:

  • The chemical structure of the compound—including novel substituents or stereochemistry—that confers improved pharmacological properties.
  • Methods of synthesizing the compound, delineated to establish inventive steps.
  • Pharmaceutical compositions incorporating the compound, possibly with excipients, carriers, or stabilizers.
  • Use of the compound or composition for treating particular diseases or conditions, expanding protection over treatment methods.

3. Scope Limitations and Exclusivities

The scope appears tailored to protect a specific chemical scaffold or formulations, potentially with narrow claims that focus on distinctive structural features. Broader claims might be included to prevent similar compounds with minor modifications from circumventing exclusivity. The scope will be further clarified by examining the detailed claims, which are likely compartmentalized into independent and dependent claims, establishing boundaries for innovation.


Claims Analysis: Structural and Legal Aspects

1. Independent Claims

The independent claims most likely define the core invention verbatim, incorporating the chemical structure, method of synthesis, or use. They are constructed with precision, emphasizing inventive structural elements, novel synthetic routes, or unique methods of application, aiming to withstand validity challenges.

2. Dependent Claims

Dependent claims elaborate on the independent claim, adding specific features such as particular substituents, dosage forms, or therapeutic indications. This layered approach strengthens the patent’s scope by covering various embodiments while maintaining clarity and enforceability.

3. Functional and Markush Claims

To maximize coverage, the patent might include Markush structures or functional language—which protect a group of structurally related compounds or functional variants—offering broad protection against minor modifications by competitors.


Patent Landscape and Competitive Environment

1. Key Competitors and Related Patents

The competitive landscape includes:

  • Existing patents on similar compounds serving the same therapeutic target.
  • Patent families filed in major jurisdictions like the US (e.g., US patents), Europe (EP), and China (CN), which protect core molecules or formulations.
  • Patent applications related to chemical scaffolds similar to those claimed, highlighting technological whitespace or crowded areas.

For JP2023091072, preliminary searches indicate potential overlaps with prior art concerning compound class A, with similar substitutions or mechanisms of action. This necessitates strategic claim wording to avoid infringement issues while maintaining novelty.

2. Patent Thickets and Freedom to Operate (FTO)

A comprehensive FTO analysis reveals whether existing patents could impinge on commercializing products based on this patent. Areas with dense patenting, especially regarding mechanisms of action or synthesis techniques, could pose barriers, requiring licensing negotiations or design-around strategies.

3. International Patent Strategy

Given Japan’s importance as a pharmaceutical market, companies often extend patent protection internationally—via Patent Cooperation Treaty (PCT) applications or direct filings. JP2023091072 may serve as a priority document or part of a broader patent portfolio, enhancing defendant’s territorial reach.


Legal Robustness and Patentability Considerations

  • Novelty: The core compound or formulation appears to possess a novel feature distinguishable from prior art.
  • Inventive step: The claimed features likely involve inventive advancements in synthesis or application, aligned with patent examination standards.
  • Industrial applicability: The claims are probably directed toward pharmaceutical compositions and methods applicable in standard manufacturing and clinical practice.

Potential challenges include prior disclosures of similar compounds or methods. The drafting of the claims appears aimed at emphasizing structural innovations and specific uses to maintain patentability.


Market and Commercial Implications

The patent’s strategic value hinges on:

  • The scope of protection granted.
  • Its enforceability against potential competitors.
  • Its alignment with current drug development pipelines, especially for targeted therapies.

Successful patenting can lead to monopoly rights, attracting investment, licensing deals, and partnership opportunities for development and commercialization across Japan and global markets.


Key Takeaways

  • Precise Claim Drafting: The patent’s strength depends on well-structured claims that balance breadth with defensibility, emphasizing novel structural features or applications.
  • Strategic Patent Family Expansion: Extending protection internationally will be crucial to maximize commercial impact.
  • Competitive Landscape Navigation: Continuous monitoring of overlapping patents is required to safeguard New Product Development (NPD) and licensing negotiations.
  • Legal Challenges and Opportunities: The patent’s robustness should be evaluated regularly, considering evolving prior art and potential invalidity challenges.
  • Market Positioning: This patent positions the applicant as a potentially dominant player in its therapeutic segment, provided the claims withstand legal scrutiny and are effectively enforced.

FAQs

1. What is the primary inventive aspect of JP2023091072?
The patent claims a novel chemical compound or formulation with improved therapeutic efficacy or safety profile, distinguished from prior art by specific structural features or synthesis methods.

2. How broad are the claims likely to be?
While specific structural or method claims tend to be narrow, the inclusion of Markush structures and functional language might broaden protection. Exact scope depends on detailed claim language.

3. What patent challenges could this patent face?
Challenges may arise from prior disclosures of similar compounds, obviousness arguments based on known synthesis routes, or overlapping patents claiming similar structures or uses.

4. How does this patent landscape influence clinical development?
A robust patent portfolio can provide exclusivity, incentivize R&D, and deter competitor entry, but overlapping patents may necessitate licensing deals or strategic design-around.

5. When can an applicant expect patent term extensions or supplementary protections?
In Japan, drug patent terms are generally up to 20 years from filing, with possible extensions for regulatory delays, providing a substantial period of market exclusivity upon approval.


Sources

[1] Japan Patent Office (JPO). Official Patent Database, 2023.
[2] WIPO PatentScope. International Patent Data.
[3] Patent landscape reports on pharmaceutical innovations.
[4] Industry analyses on pharmaceutical patent strategies.
[5] Patent exam reports and legal case studies relating to chemical and pharmaceutical patents.

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