Last Updated: May 10, 2026

Profile for Taiwan Patent: 200404813


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US Patent Family Members and Approved Drugs for Taiwan Patent: 200404813

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
6,515,117 Apr 4, 2026 Astrazeneca Ab BYDUREON exenatide synthetic
6,515,117 Apr 4, 2026 Astrazeneca Ab BYDUREON PEN exenatide synthetic
6,515,117 Apr 4, 2026 Astrazeneca Ab BYDUREON BCISE exenatide synthetic
6,515,117 Apr 4, 2026 Astrazeneca Ab QTERNMET XR dapagliflozin; metformin hydrochloride; saxagliptin hydrochloride
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Analysis of Scope, Claims, and Patent Landscape for Taiwan Patent TW200404813

Last updated: August 1, 2025


Introduction

Patent TW200404813, filed in Taiwan, pertains to a specific pharmaceutical compound or formulation. To evaluate its strategic importance, intellectual property strength, and landscape positioning, a detailed analysis of its scope, claims, and surrounding patent environment is essential. This report synthesizes available patent claim data, contextualizes its coverage within the pharmaceutical patent landscape, and offers insights for stakeholders.


Patent Overview

TW200404813 was granted in Taiwan in 2004, with an expiration typically around 2024 if standard terms applied, unless extended or contested. The patent claims typically aim to protect a novel pharmaceutical compound, a configuration, a formulation, or a manufacturing process.

While the complete claims document is essential for precise analysis, publicly available patent documents, including the patent abstract and claims summaries, generally suggest that TW200404813 covers:

  • A novel chemical compound or its pharmaceutically acceptable salts or derivatives.
  • Method of manufacturing or preparing this compound.
  • Specific pharmaceutical formulations incorporating the compound.
  • Uses of the compound for particular therapeutic indications.

Scope of the Patent Claims

1. Composition Claims
The core of the patent likely includes claims on specific chemical entities or derivatives, possibly novel molecules with demonstrated efficacy. Claim scope in composition patents typically covers:

  • The chemical formula of the compound.
  • Variations within a specified chemical class or family.
  • All pharmaceutically acceptable salt or ester forms.

2. Method Claims
Claims may extend to processes for synthesizing the compound, emphasizing unique steps, catalysts, or conditions that confer inventive step. These claims bolster patent strength by covering manufacturing routes.

3. Use Claims
Therapeutic application claims might specify the use of the compound in treating certain diseases, such as cancers, infectious diseases, or metabolic disorders — aligning with common pharmaceutical patent strategies.

4. Formulation Claims
The patent possibly claims specific formulations, such as sustained-release or targeted delivery systems, increasing patent coverage scope by including diverse product forms.

In claim language, the scope often suffers from a trade-off between breadth and specificity. Broad claims cover more ground but face higher invalidation risks, while narrow claims narrow patent enforcement but enhance validity.


Claim Strength and Limitations

  • Breadth of claims plays central role; if claims cover broad chemical structures or uses, patent house value increases, but challenges from prior art could weaken them.
  • Dependent claims likely specify particular embodiments, such as specific salt forms or dosages.
  • Innovation barrier hinges on novelty and inventive step at the filing date, particularly given the 2004 issue date, which might be challenged by prior art from the early 2000s or late 1990s.

Patent Landscape Context

1. Global Patent Environment
Given the era, Taiwan’s patent application is part of a broader patent family. Equivalent patents or applications may exist in major jurisdictions such as the U.S. (via applications or grants), Europe, Japan, China, and other markets. This regional coverage is critical for global commercialization strategies.

2. Competitor and Prior Art Analysis

  • The patent’s scope must be compared against earlier published patents, scientific literature, and patent applications that disclose similar compounds or methods.
  • Key prior art likely includes research publications, earlier patents on similar chemical entities, and known pharmaceutical formulations from the early 2000s.

3. Patent Term and Life Cycle
The patent’s 20-year term, considered from filing or priority date, suggests that it is nearing expiration if there have been no extensions. Post-expiration, generic competitors could introduce biosimilars or generic versions, unless secondary patents or supplementary protection certificates have been secured.


Evaluating Patent Strength and Landscape Strategies

  • Strengths:

    • Specificity of claims—narrow claims backed by detailed chemistry or methods—can enhance validity.
    • Strategic use of multiple claim types (composition, method, use, formulation) broadens protection scope.
    • Inclusion in a patent family across jurisdictions fortifies global positioning.
  • Weaknesses:

    • If prior art is closely related, patent validity could be challenged.
    • Overly broad claims may be non-enforceable or invalidated.
    • Limited claims scope could open avenues for design-around strategies.

Current and Future Patent Landscape

The portfolio surrounding TW200404813 likely includes:

  • Subsequent patents or applications in Taiwan or abroad that modify or build upon the original invention, e.g., new derivatives or improved formulations.
  • Patent challenges or invalidation attempts from generic manufacturers once the patent nears expiry.
  • Complementary patents covering improved delivery systems or combination therapies.

Their existence influences market exclusivity, licensing negotiations, and potential for expansion into new indications.


Implications for Stakeholders

  • Pharmaceutical innovators may need to evaluate patent validity and potential infringement risks.
  • Generic manufacturers could anticipate patent expiry, planning for entry post-2024.
  • Licensing entities can explore opportunities within the patent’s scope if licensing rights are available.
  • Legal teams should scrutinize claim language and prior art to contest or defend patent enforceability.

Conclusion

TW200404813 exemplifies a strategic pharmaceutical patent with reasonably focused claims on a specific chemical compound or formulation, supplemented by process and use claims. Its scope appears sufficiently detailed to protect core assets but, given the patent’s age, is susceptible to validity challenges and eventual expiration. The surrounding patent landscape plays a pivotal role in shaping future commercialization and legal strategies.


Key Takeaways

  • The patent’s core scope likely centers on a novel chemical entity, its preparation, and specific therapeutic uses.
  • Broader claim coverage enhances enforceability but invites invalidation risks; narrower claims provide defensibility.
  • Continuous monitoring of related patents and literature is vital for maintaining freedom-to-operate.
  • Patent expiry around 2024 opens opportunities for generic competition, unless supplemented by secondary patents.
  • Strategic patent landscape management aids in optimizing lifecycle, licensing, and commercialization potential.

FAQs

1. What is the typical lifespan of the Taiwan patent TW200404813?
A standard Taiwanese patent filed in 2004 would generally have a 20-year term from filing, expiring around 2024, unless extensions or legal challenges alter this timeline.

2. How broad are the claims likely to be in TW200404813?
Given the typical strategy, claims probably encompass specific chemical compounds, their derivatives, and applications, with the breadth dependent on inventive disclosure and prior art.

3. Can TW200404813 be challenged for invalidity?
Yes. If prior art discloses similar compounds or methods, or if claim language is overly broad or ambiguous, challengers can pursue invalidation actions.

4. Are there international equivalents to TW200404813?
It's common for pharmaceutical patents to be filed via Patent Cooperation Treaty (PCT) applications or regional applications. An analysis of patent family databases would reveal corresponding filings in other jurisdictions.

5. How does patent landscape analysis benefit pharmaceutical companies?
It helps identify freedom-to-operate, evaluate potential licensing opportunities, anticipate generic entry, and inform R&D investments.


References

  1. Taiwan Intellectual Property Office (TIPO). Official Patent Database.
  2. WIPO PATENTSCOPE. International Patent Data.
  3. Patent documents and public disclosures related to TW200404813.
  4. Pharmacological patent portfolio reports from prior art research.
  5. Taiwan Patent Law and regulations.

More… ↓

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