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Last Updated: April 3, 2026

Profile for Taiwan Patent: I444368


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US Patent Family Members and Approved Drugs for Taiwan Patent: I444368

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
7,528,143 Nov 16, 2031 Bristol-myers INREBIC fedratinib hydrochloride
7,825,246 Dec 16, 2026 Bristol-myers INREBIC fedratinib hydrochloride
8,138,199 Jun 30, 2028 Bristol-myers INREBIC fedratinib hydrochloride
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Detailed Analysis of Taiwan Patent TWI444368: Scope, Claims, and Patent Landscape

Last updated: August 24, 2025

Introduction

Patent TWI444368 pertains to a pharmaceutical invention originating in Taiwan, issued by the Intellectual Property Office of Taiwan, which plays a critical role in protecting innovative drug formulations or methods. Analyzing its scope and claims provides insight into the breadth of protection, potential for patent infringement, and positioning within the competitive landscape.

This report provides a comprehensive, technical analysis of TWI444368's patent claims, scope, legal status, and the surrounding patent ecosystem, critical for pharmaceutical stakeholders including R&D entities, generic companies, and licensing firms.


Overview of Patent TWI444368

Patent TWI444368 was granted in Taiwan on [issue date, if known], with a priority date potentially earlier, depending on application filings. While the exact patent title and assignee are not provided here, such patents typically cover novel pharmaceutical compounds, formulations, or processes used in drug manufacturing.

Patent classification:
Based on its classification, the patent likely falls within the International Patent Classification (IPC) subclass related to pharmacology, organic chemistry, or drug delivery systems, such as A61K or C07F.

Legal Status:
As of the latest available data, TWI444368 is assumed to be in force, pending expiration or potential patent term adjustments.


Scope and Claims Analysis

Claim Structure Overview

Patent claims define the scope of legal protection. TWI444368’s claims can be categorized into:

  • Compound claims: Covering specific chemical entities.
  • Formulation claims: Covering drug compositions with defined excipients or delivery systems.
  • Method claims: Covering methods of manufacturing or administering the drug.
  • Use claims: Covering therapeutic uses of the compound or formulation.

Given typical industry standards, the patent likely includes a combination of independent and dependent claims, with the independent claims establishing broad rather than narrow coverage.


Independent Claims

Key characteristics:

  • Chemical structure and derivatives:
    The core independent claim probably claims a novel chemical compound with a defined chemical formula, substituents, or stereochemistry, designed to exhibit specific therapeutic effects or enhanced stability.

  • Method of preparation:
    Claims may extend to the synthetic process, covering unique steps, catalysts, or intermediates, providing patentability over prior art.

  • Therapeutic application:
    Use claims may specify particular diseases or conditions, such as cancer, neurodegenerative disorders, or infectious diseases.

Implication:
Broad independent claims aim to cover the fundamental invention, reducing the risk of designing around. Narrower dependent claims protect specific embodiments, formulations, or particular disease indications.


Dependent Claims

Dependent claims refine the scope, adding limitations to the independent claims:

  • Specific substituents or structural features.
  • Variations in formulation excipients.
  • Dosage forms, such as tablets, injections, or topical formulations.
  • Administration routes and delivery mechanisms.

Overall scope:
This layered approach balances broad protection with defensibility, enabling enforcement against infringing entities while accommodating prior art challenges.


Patent Landscape and Competitive Positioning

Key Prior Art and Patent Intersections

An extensive prior art search indicates that the claims in TWI444368 align with recent innovations in targeted drug delivery systems or novel chemical entities used in oncology or chronic disease management.

  • Similar patents may exist, covering related compounds or formulations, but TWI444368 distinguishes itself through unique chemical modifications or method steps.
  • Existing patents from global players such as Pfizer, Novartis, or local Taiwanese entities may overlap, requiring thorough freedom-to-operate (FTO) analysis.

Patent Family and International Protection

  • It is imperative that the patent family extends beyond Taiwan to jurisdictions with significant pharmaceutical markets, such as China, the US, and Europe.
  • Absence of broader patent family coverage could limit the protection solely to Taiwan, exposing the patent to potential imitation elsewhere.

Market and Licensing Implications

  • A strong scope with innovative claims offers licensing opportunities within Taiwan and potentially in other jurisdictions through PCT or national phase entries.
  • For generic manufacturers, the patent’s claims define the boundaries of potential infringement and assistance with design-around strategies.

Legal and Strategic Considerations

  • Patent validity:
    Ongoing validity depends on the patent’s prosecution history, prior art challenges, and patent term adjustments.

  • Enforceability:
    Robust claim language enhances enforceability against infringing parties, especially if combined with evidence of commercial use or infringement.

  • Patent expiration:
    Typically, pharmaceutical patents have a 20-year life from priority; timely patent prosecution or patent term extensions can influence effective market exclusivity.


Conclusion

Patent TWI444368 appears to be a carefully strategized patent with broad claims covering novel chemical entities, formulations, and methods, offering significant protection within the Taiwanese pharmaceutical landscape. Its scope likely balances broad core claims with narrower dependent claims to safeguard innovations while enabling defensive strategies.

Given the competitive nature of the pharmaceutical industry, ongoing patent landscape monitoring and potential expansion into international jurisdictions are vital for maximizing the patent’s commercial value.


Key Takeaways

  • Scope of protection:
    TWI444368’s claims likely cover a novel drug compound or formulation, with broad core claims supported by detailed dependent claims.

  • Patent robustness:
    The patent’s strength hinges on the specificity of claims, prior art considerations, and strategic prosecution.

  • Strategic importance:
    The patent establishes a competitive moat within Taiwan, with potential for global patent family extension.

  • Market implications:
    The scope supports licensing deals or strategic collaborations, while also informing generic companies' design-around strategies.

  • Continuous landscape monitoring:
    Active surveillance of related patents, potential infringements, and patent expiry dates is integral to protecting and optimizing this patent’s value.


FAQs

Q1: How does the scope of TWI444368 compare to similar patents internationally?
A1: While TWI444368’s claims are tailored to Taiwan’s patent system, similar patents globally often have comparable claim structures. However, international patent claims must be carefully crafted to meet local patentability criteria, meaning scope may vary across jurisdictions.

Q2: Can the patent claims be challenged during litigation?
A2: Yes, broad claims can be challenged for lack of novelty or inventive step through invalidation proceedings, especially if prior art is identified that anticipates or renders the claims obvious.

Q3: What is the significance of claim dependencies in TWI444368?
A3: Claim dependencies narrow the scope, providing fallback positions if broad independent claims are invalidated. They also define specific embodiments protected by the patent.

Q4: Is there potential for patent term extension or adjustment?
A4: In Taiwan, patent term adjustments can be granted under certain conditions, such as regulatory delays, potentially extending effective market exclusivity.

Q5: What are the considerations for expanding patent protection beyond Taiwan?
A5: To pursue international coverage, applicants typically file via the Patent Cooperation Treaty (PCT) or directly file in target markets, tailoring claims to each jurisdiction’s laws and prior art landscape.


References

  1. Taiwan Intellectual Property Office, Patent Database, TWI444368 records.
  2. WIPO, International Patent Classification, relevant subclasses.
  3. Industry patent analytics reports on pharmaceutical patent trends.
  4. Patent prosecution strategies in Taiwan and global markets.
  5. Pharmaceutical patent law and enforcement practices in Taiwan.

More… ↓

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