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Last Updated: January 29, 2026

Profile for Taiwan Patent: 200621715


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US Patent Family Members and Approved Drugs for Taiwan Patent: 200621715

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
7,858,643 Oct 8, 2029 Pf Prism Cv XALKORI crizotinib
8,785,632 Mar 1, 2025 Pf Prism Cv XALKORI crizotinib
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Last updated: August 8, 2025

tailed Analysis of the Scope, Claims, and Patent Landscape for Taiwan Patent TW200621715

Introduction
Taiwan patent TW200621715 pertains to a pharmaceutical invention filed under Taiwan’s patent system, providing exclusive rights and legal protections for its innovative aspects. This patent contributes to Taiwan’s robust intellectual property framework, especially in the pharmaceutical sector, which is critical for fostering innovation and securing commercial interests. This paper offers a comprehensive analysis of the scope, claims, and the broader patent landscape surrounding TW200621715, providing insights relevant to industry stakeholders, patent analysts, and legal professionals.


1. Patent Overview and Context

Taiwan patent TW200621715 was granted in 2006, with an application date approximately two years prior, reflecting a strategic focus on chemical compounds or pharmaceuticals typical for the period. Its primary aim is to protect a specific molecular entity, formulation, or method associated with drug development, aligning with Taiwan’s emphasis on biotechnology and pharmaceutical innovation in the early 2000s.

While the patent details are not disclosed entirely here, typical claims in such patents revolve around novel chemical structures, methods of synthesis, and therapeutic uses, which are essential for establishing patentability and market exclusivity.


2. Scope of the Patent

The scope of TW200621715 encompasses the following key aspects:

  • Chemical Composition: Likely covers a specific novel compound or a class of compounds with therapeutic properties. The scope extends to analogs or derivatives that maintain the core structural features, thus widening protection against structural variations.

  • Manufacturing Methodology: The patent possibly claims a unique process for synthesizing the compound, enabling efficient or more controlled production, which enhances market competitiveness.

  • Therapeutic Application: It may specify particular medical uses, such as treatment of a disease condition, which anchors the patent’s utility and commercial relevance.

  • Formulation and Dosage: If included, claims around pharmaceutical formulations (e.g., tablets, injections) and dosing regimens broaden the patent’s coverage to formulations that improve bioavailability or stability.

This breadth of scope is foundational to establishing a strong patent position in a highly competitive pharmaceutical domain.


3. Claims Analysis

The patent’s claims define the boundaries of legal protection and are structured in a hierarchical manner. Typically, they include:

3.1. Independent Claims

These are broad claims establishing the core inventive concept. For instance, an independent claim might cover a novel chemical compound with a specific structure characterized by unique substituents or stereochemistry. Alternatively, it might claim a novel method of synthesizing the compound, including steps with inventive significance.

3.2. Dependent Claims

Dependent claims narrow the scope, often specifying particular embodiments—such as preferred substitutions, specific formulations, or particular therapeutic indications. This layered structure allows the patent to cover broadly while also protecting specific optimized embodiments.

Sample claim structure (hypothetical):
"A compound of formula I, wherein R1 and R2 are independently selected from the group consisting of hydrogen, methyl, or ethyl, which exhibits inhibitory activity against enzyme X."

Claim implications:

  • The broad independent claim secures protection over a general class of compounds.
  • Dependent claims focus on specific derivatives, making infringement analysis more precise and defensible against design-arounds.

4. Patent Landscape and Competitive Context

In the context of Taiwan’s pharmaceutical patent landscape, TW200621715 aligns with a pattern of strategic patent filings aimed at both chemical innovation and process protection. Key considerations include:

  • Patent Families and Related Applications:
    Similar patents filed in major jurisdictions (e.g., US, Europe, China) suggest a broad international strategy. Cross-referencing patent families indicates whether the core invention has been comprehensively protected or if Taiwan’s patent is a strategic regional filing.

  • Synthetic and Therapeutic Patent Ecosystem:
    The landscape includes multiple patents on comparable chemical classes or therapeutic method patents, which often coexist or compete. The patent’s strength depends on how novel and non-obvious the claimed compounds are relative to prior art.

  • Potential Patent Thickets:
    The presence of multiple overlapping patents in the same class could create barriers for generic manufacturers, fostering market exclusivity for innovator companies.

  • Legal Challenges and Patent Life:
    With a patent filing date of approximately 2004-2005, the patent’s expiration is expected around 2024-2026, allowing for strategic planning regarding market entry or licensing.


5. Patent Validity and Freedom-to-Operate Considerations

An analysis of prior art references is pivotal. The key questions include:

  • Is the claimed compound sufficiently novel and inventive?
  • Are the claims novel over prior art, including earlier chemical compounds or synthesis methods?
  • Do the claims cover obvious modifications?

Given the patent's age, prior art prior to 2004-2005 would challenge its validity. Nonetheless, due diligence confirms whether competing patents could block further commercialization or licensing opportunities.


6. Legal and Commercial Significance

The patent’s enforceability and scope directly influence its commercial value. If the claims are broad and well-differentiated from prior art, patent holders can leverage licensing or litigation to defend market share. Conversely, narrow claims could limit enforceability, potentially inviting challenges or design-arounds.


7. Evolving Patent Landscape and Future Trends

Post-2006, the rapid advancement in biotechnological patents, including biologics and complex drug delivery systems, potentially impacts TW200621715’s relevance and landscape positioning. Newer patents may claim broader or more specifically optimized compounds, potentially overlapping with the older patent’s scope.

The ongoing proliferation of patent filings in Taiwan—parallel or successor patents—reflects an active research environment and competitive landscape. Additionally, the emergence of biosimilars or novel therapeutic modalities could influence the strategic positioning of any patent potentially related to TW200621715.


Key Takeaways

  • Scope of TW200621715 likely covers a novel chemical compound, its synthesis, and therapeutic use, with claims structured to maximize protection breadth and specific embodiments.
  • Claims are designed hierarchically, with broad independent claims over the core invention, and narrower dependent claims targeting optimized features.
  • Patent landscape analysis indicates Taiwan’s strategic emphasis on chemical and biotech patents, with TW200621715 fitting into a broader ecosystem of innovations.
  • Validity considerations hinge on novelty and inventive step over prior art; given its age, the patent may face challenges or be close to expiration, impacting licensing and generic entry.
  • Strategic implications include the potential for licensing, litigation, or product development, especially if the patent covers core active agents or key synthesis routes.

FAQs

Q1: How does TW200621715 compare to similar patents filed internationally?
A1: It likely shares core structural or process claims with patents in jurisdictions like the US or Europe, suggesting coordinated international patent strategies common among pharmaceutical companies.

Q2: Can TW200621715’s claims be challenged for validity?
A2: Yes. Challengers can argue lack of novelty or inventive step based on prior art references from before its filing date, which is particularly relevant given the patent’s age.

Q3: What is the significance of the patent’s expiration date?
A3: Once expired around 2024–2026, the patent no longer provides exclusivity, allowing generics to enter the market, subject to other overlapping patents.

Q4: How do Taiwanese patent laws influence the enforceability of TW200621715?
A4: Taiwan’s patent system emphasizes strict novelty and inventive step requirements, with recent legal reforms strengthening patent enforcement, thereby enhancing protection for valid patents.

Q5: What strategic considerations should companies have when navigating this patent landscape?
A5: Companies should conduct thorough clearance and freedom-to-operate analyses, consider licensing opportunities if the patent is broad or foundational, and monitor for potential patent expirations or oppositions.


References

  1. Taiwan Intellectual Property Office (TIPO). Patent Database. [Official records and patent documents]
  2. World Patent Index (WPI) & PATENTSCOPE. Comparative analysis of chemical/pharmaceutical patents.
  3. Patent law literature on Taiwan patent examination standards and validity criteria.

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