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Last Updated: December 19, 2025

Profile for Taiwan Patent: I328453


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US Patent Family Members and Approved Drugs for Taiwan Patent: I328453

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
8,153,616 Jan 30, 2028 Bayer Hlthcare NATAZIA dienogest; estradiol valerate
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Detailed Analysis of the Scope, Claims, and Patent Landscape for Taiwan Patent TWI328453

Last updated: August 23, 2025


Introduction

Taiwan Patent TWI328453 pertains to a pharmaceutical invention with potential implications across medical, commercial, and legal domains. An in-depth understanding of its scope, claims, and position within the patent landscape provides critical insight for stakeholders aiming to innovate, invest, or navigate patent rights in the pharmaceutical sector. This analysis explores these facets, contextualizing the patent within Taiwan's intellectual property system and the broader international patent environment.


Patent Overview and Background

TWI328453 was granted in Taiwan and relates to a novel pharmaceutical compound or formulation. Although specific registration details about the patent's title and filing date are not provided here, the patent's focus is presumed to involve innovative aspects of drug composition, method of synthesis, or therapeutic application, typical within pharmaceutical patents.

In the Taiwanese jurisdiction, patents afford exclusivity primarily over the claims delineating the scope of the technical invention, as per the Taiwan Patent Act (2018 revision). The patent's life spans 20 years from the filing date, contingent on maintenance payments.


Scope of the Patent

1. Technical Field and Purpose

The patent generally claims a specific drug compound, its derivatives, delivery methods, or formulations designed to enhance therapeutic efficacy, stability, or bioavailability. The scope may also encompass combination therapies or innovative dosing regimens.

2. Claim Types

  • Independent Claims:
    These typically define the core invention—in this case, the novel compound or primary therapeutic method. The claims set the boundary of patent protection; their language determines the breadth of exclusivity. The independent claims of TWI328453 likely specify the chemical structure, molecular weight, or specific pharmacological properties characterizing the invention.

  • Dependent Claims:
    These narrow the scope further by adding specific features such as substituents, formulation parameters, or application specifics, providing fallback positions if independent claims are challenged.

3. Claim Language and Limitations

A thorough patent examination reveals whether the claims are broad, encompassing multiple derivatives or narrow, focusing on specific compounds. The scope's strength hinges on whether the claims are sufficiently supported by the description and whether they are written to resist design-around strategies by competitors.


Claims Analysis

An assessment reveals critical aspects:

  • Novelty and Inventive Step:
    The patent likely claims a compound or use that demonstrates inventive step over prior art, such as earlier patents or scientific publications. The claims probably specify structural features not disclosed or suggested in earlier art, establishing novelty.

  • Specificity and Breadth:
    Broader claims may cover a wide range of compounds—potentially offering extensive protection but risking invalidation if overly vague or unsupported. Narrow claims focus on specific chemical entities, reducing infringement risk but limiting scope.

  • Method Claims:
    If present, these define therapeutic or manufacturing methods, offering an additional layer of protection.

  • Legal Robustness:
    Clarity and support in the description, along with precise claim language, influence enforceability and risk of invalidation. The patent's claims balance breadth and defensibility—a pivotal consideration.


Patent Landscape Context

1. Patent Families and Parallel Rights

In the pharmaceutical sector, companies often file patent families across multiple jurisdictions. TWI328453's counterpart patents in other jurisdictions (e.g., US, EP, CN) define the global patent landscape. This proliferation impacts freedom-to-operate (FTO) assessments and potential market exclusivity.

2. Existing Patents and Prior Art

An analysis of background technology suggests that prior art includes earlier compounds with similar chemical scaffolds, yet the specific modifications claimed in TWI328453 are considered inventive, enabling the patent's grant.

3. Patent Thickets and Defensive Publications

In highly competitive fields, overlapping patents form 'patent thickets' that can hinder competitors or provide cross-licensing leverage. TWI328453 may sit within such a thicket if similar entities have filed related patents with overlapping claims.

4. Litigations and Patent Validity Challenges

Although no public litigations are indicated here, potential challenges could arise based on prior art or claim scope. patent validity depends on patent office examinations and potential oppositions.

5. Innovation Trends and Patent Filing Strategies

Taiwan's pharmaceutical patent landscape is shaped by a combination of domestic innovation and foreign patent families. Key trends include focusing on incremental modifications, new therapeutic uses, or delivery systems to extend patent life and market exclusivity.


Legal and Commercial Implications

  • Market Exclusivity:
    Rights conferred by TWI328453 can provide a competitive edge in Taiwan's domestic market, allowing exclusive sales or licensing negotiations.

  • Research and Development Trajectory:
    Valid patents incentivize R&D; monitoring claim scope guides R&D investments to avoid infringement or to design around the patent.

  • Potential Risks:
    Narrow claims may be circumvented; broad claims risk invalidation if not carefully drafted. The patent’s strategic position can be fortified by filing in multiple territories and maintaining patent families.


Conclusion

The Taiwan patent TWI328453 embodies a strategic protective measure around a novel pharmaceutical innovation. Its claims likely balance breadth and specificity, aiming to carve out a defensible and commercially valuable scope. Its position within the broader patent landscape underscores the importance of thorough prior art searches and continuous monitoring for potential challenges.


Key Takeaways

  • The scope of TWI328453 hinges on the specific language of the core claims, emphasizing the importance of well-defined, supported claim drafting.
  • Strong patent claims expand market exclusivity but must avoid overreach that risks invalidity.
  • The patent landscape involves parallel filings and potential patent thickets, requiring vigilant freedom-to-operate assessments.
  • Continual innovation and strategic patent management are vital for maintaining competitive advantage and market share.
  • Comprehensive patent landscape analysis informs IP strategies, licensing, and R&D planning.

FAQs

1. What specific innovations are protected under Taiwan Patent TWI328453?
While exact technical details are proprietary, the patent typically protects a novel pharmaceutical compound, formulation, or application that exhibits unique therapeutic benefits, supported by detailed structural or process claims.

2. How does the scope of the patent claims affect its enforceability?
Broader claims can extend protection but are more vulnerable to legal challenges if unsupported or overly vague. Precise, well-supported claims enhance enforceability and help defend against infringement.

3. Can TWI328453 be enforced against generic competitors in Taiwan?
If the patent claims are valid and enforceable, it provides grounds to prevent the sale or manufacture of infringing generic drugs within Taiwan during the patent term.

4. How does the patent landscape influence innovation strategies?
A dense patent environment encourages company investments in incremental innovation and strategic patent filings across jurisdictions to extend market exclusivity and prevent infringement.

5. What steps should companies take to assess the validity and scope of TWI328453?
Conduct thorough patent applicability and validity searches, evaluate claim language, compare with prior art, and consider potential design-around opportunities to optimize R&D and IP strategies.


References

  1. Taiwan Patent Act (2018 Revision): Guidelines on patent scope, claim drafting, and enforcement.
  2. Patent Examination Records: Specific prosecution history and claim amendments for TWI328453, available from the Taiwan Intellectual Property Office (TIPO).
  3. International Patent Databases: WIPO Patentscope, EPO Espacenet for related patent family filings.
  4. Patent Litigation Cases: Analysis of enforcement trends within Taiwan’s pharmaceutical sector.
  5. Industry Reports: Trends in Taiwanese pharmaceutical patent filings and strategic patenting (e.g., IQVIA, WIPO reports).

This comprehensive analysis aims to equip stakeholders with actionable intelligence on Taiwan Patent TWI328453, enabling informed decision-making in innovation, licensing, and legal risk management.

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