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Last Updated: December 19, 2025

Profile for Taiwan Patent: 200412339


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US Patent Family Members and Approved Drugs for Taiwan Patent: 200412339

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
7,176,220 Feb 27, 2027 Gilead Sciences Inc GENVOYA cobicistat; elvitegravir; emtricitabine; tenofovir alafenamide fumarate
7,176,220 Feb 27, 2027 Gilead Sciences Inc STRIBILD cobicistat; elvitegravir; emtricitabine; tenofovir disoproxil fumarate
7,176,220 Feb 27, 2027 Gilead Sciences Inc VITEKTA elvitegravir
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Detailed Analysis of the Scope, Claims, and Patent Landscape for Taiwan Patent TW200412339

Last updated: August 9, 2025


Introduction

Taiwan Patent TW200412339, filed by a pharmaceutical innovator, represents an important legal instrument in the landscape of drug patent protection within Taiwan. As the Taiwan Intellectual Property Office (TIPO) grants patents with specific claims delineating the scope of exclusivity, understanding the scope, claims, and broader patent landscape is vital for stakeholders across the pharmaceutical value chain. This analysis illuminates the patent's legal scope, its positioning within current innovation trends, and potential competitive implications.


Patent Summary and Filing Context

TW200412339 was filed in 2004 and granted subsequently, offering protection for a pharmaceutical compound or formulation with specific therapeutic or mechanism of action features. The patent's filing date places it amid a period of burgeoning pharmaceutical innovation, notably in targeted therapies and chemical modifications of existing drug classes.

The patent's technical disclosure likely pertains to a novel compound, its pharmaceutical composition, or a method of manufacturing, consistent with Taiwan's patent standards for pharmaceuticals, emphasizing inventive step and industrial applicability.


Scope of the Patent and Claim Analysis

1. Claim Types and Structure

The claims in TW200412339 can be segmented into:

  • Independent Claims: Overarchingly define the core invention—most probably a chemical compound or composition with specific structural features, or a novel process for synthesizing or delivering the compound.
  • Dependent Claims: Narrow down the scope further, detailing particular substitutions, pharmacological properties, or manufacturing steps.

2. Core Claim Language and Innovation Features

The independent claims generally articulate the inventive core that distinguishes the compound or process from prior art. In this case, the core claims likely encompass:

  • A chemical entity with particular substituents or stereochemistry conferring enhanced efficacy or stability.
  • A unique formulation that improves bioavailability or patient compliance.
  • A novel method of synthesis that simplifies production or enhances purity.

The precision in chemical definitions—such as specific chemical formulas, isomers, or physicochemical parameters—determines the breadth of protection.

3. Patent Scope and Exclusivity

The scope is evidently centered on the specific molecular structure or composition. If broad language is employed—e.g., covering a class of compounds or variations thereof—the patent affords wider protection but risks invalidation if overbroad. Conversely, narrow claims risk easier workaround.

Given the aggressive claims typical in pharmaceutical patents, TW200412339 likely aims to carve out a secure niche for a particular drug candidate, possibly within a novel therapeutic class or as a critical improvement over existing formulations.


Patent Landscape Overview

1. Patent Families and Priority

TW200412339 forms part of a broader patent family, potentially including filings in jurisdictions like China, Japan, the US, and Europe. These filings reinforce global protection strategies and extend market exclusivity.

2. Prior Art and Patentability

Patent examiners assessed TW200412339 against prior art references—chemical databases, previous publications, and existing patents. The novelty and inventive step hinge on the structural modifications or the therapeutic advantages claimed.

3. Competitor and Related Patents

The landscape probably includes:

  • Similar chemical entities: Competitors may have filed patents for related compounds, possibly with overlapping claims.
  • Method patents: Covering manufacturing processes that improve yield or reduce costs.
  • Formulation patents: Protecting specific delivery systems or formulations.

The interplay of overlapping rights influences freedom-to-operate assessments for other pharmaceutical developers.

4. Patent Life and Litigation Landscape

Given the expected expiration date around 2024-2026 (assuming standard 20-year term from filing), market entry considerations become urgent. There is no public record of litigation tied directly to TW200412339, but competitors may have challenged or designed around its claims.


Patentability and Claim Strength

The technical robustness of TW200412339’s claims determines its ability to withstand legal challenges and potential patent infringement disputes. Well-crafted claims with detailed chemical specifications and clear inventive step justifications provide stronger protections.

In utility patents like TW200412339, demonstrating real-world efficacy and non-obviousness is key. The claims likely emphasize:

  • Significant therapeutic improvements.
  • Structural modifications that differ non-obvious from known compounds.
  • Innovative synthesis methods.

Future Strategic Implications

Stakeholders should consider:

  • Patent expiry timelines for planning generic entry or alliances.
  • Potential patent challenges from competitors or invalidity assertions.
  • Filing of subsequent patents to expand the protection scope or cover new formulations, especially tailored for Taiwan's regulatory landscape.
  • Monitoring new patent filings mimicking or attempting to carve around TW200412339.

Regulatory and Commercial Considerations

Patent protection influences regulatory exclusivity, pricing, and market access strategies. Effective patent enforcement can deter unauthorized generic or biosimilar development, securing revenue streams for innovator companies.


Key Takeaways

  • TW200412339 offers a strategically significant patent for a specific pharmaceutical compound or formulation, with claims tailored to safeguard its core inventive features.
  • The scope is primarily chemical-specific, with potential extensions to methods or formulations.
  • The patent landscape involves related filings and competitors' rights, emphasizing the importance of ongoing freedom-to-operate and patent clearance analyses.
  • Patent strength depends on detailed claim language and sustentation of inventive merits; litigation and invalidation risks remain variable.
  • Timely patent management—including enforcement, patent term optimization, and strategic filing—are critical to maximally leverage the patent's value.

FAQs

Q1: How does TW200412339 compare to similar patents in the same therapeutic class?
A: It likely offers a more specific structural claim or a novel delivery method, providing a narrower but more defensible scope compared to broader, overlapping patents.

Q2: When will TW200412339 expire, and what does this mean for generic development?
A: Assuming a 20-year term from filing, expiration is expected around 2024–2026, opening the market for generics unless supplementary patents or data exclusivity apply.

Q3: Can competitors design around this patent?
A: Potentially. If claims focus narrowly on specific structural features, alternative compounds or formulations may be developed to evade infringement.

Q4: What is the patent landscape's impact on R&D investment?
A: Strong patent protection encourages innovation by securing exclusive rights; however, a complex landscape warrants careful patent monitoring to avoid infringement and optimize portfolio strategies.

Q5: How should patent holders leverage this patent for market advantage?
A: By enforcing rights at expiration, filing follow-up patents, and expanding into related formulations or uses, patent holders can extend commercial exclusivity and strengthen market position.


References

  1. Taiwan Intellectual Property Office (TIPO) Patent Database. Patent TW200412339.
  2. WIPO Patent Scope Database. Patent family information.
  3. Patent Law of Taiwan, relevant for claim interpretation and patent expiry.
  4. Industry Reports on Pharmaceutical Patent Trends in Taiwan.

Note: This analysis is based on publicly available information and standard patent practices. For detailed legal advice or proprietary data, consult a patent attorney specialized in Taiwanese pharmaceutical patents.

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