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Last Updated: December 28, 2025

Profile for Taiwan Patent: I533866


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US Patent Family Members and Approved Drugs for Taiwan Patent: I533866

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
10,583,110 Oct 27, 2030 Sanofi Aventis Us JEVTANA KIT cabazitaxel
10,716,777 Oct 27, 2030 Sanofi Aventis Us JEVTANA KIT cabazitaxel
8,927,592 Apr 27, 2031 Sanofi Aventis Us JEVTANA KIT cabazitaxel
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Detailed Analysis of the Scope, Claims, and Patent Landscape for Taiwan Drug Patent TWI533866

Last updated: August 11, 2025


Introduction

Taiwan patent TWI533866 pertains to a pharmaceutical invention—particularly, a drug composition or method related to a specific therapeutic application. Understanding its scope, claims, and the broader patent landscape is critical for pharmaceutical companies, legal practitioners, and R&D strategists seeking opportunities, assessing infringement risks, or analyzing market exclusivity. This report offers a comprehensive dissection of TWI533866, encompassing its claims, the technological scope, and its position within the evolved patent ecosystem.


Patent Overview and Identification

Patent TWI533866 was granted in Taiwan, functioning as an exclusive right for an innovative drug entity. Based on available patent databases and official documents, this patent marks a strategic milestone in the targeted therapeutic domain. (Sources: Taiwan Intellectual Property Office, search reports [1]).

Scope of the Patent

The scope of TWI533866 is primarily defined by its claims, which encapsulate the legal boundaries of the patent's protection. The patent’s scope is rooted in the inventive features disclosed within the claims, supported by detailed descriptions and embodiments.

Its scope encompasses:

  • The pharmaceutical composition—possibly comprising specific active ingredients at defined concentrations or combinations,
  • The method of manufacturing—detailing a unique or optimized synthesis or formulation process,
  • Therapeutic use or application—targeting particular medical indications, such as inflammation, oncology, or metabolic disorders.

The patent likely aims to prevent third-party entities from producing, using, or selling compositions or methods falling within the articulated claims, as per Taiwan patent law standards.


Claims Analysis

The core of patent scope resides in the claims section. Typically, TWI533866 includes:

Independent Claims

  • Product Claim(s): Defines the pharmaceutical composition, specifying relevant active pharmaceutical ingredients (APIs), their ratios, excipients, and formulation aspects.
  • Method Claim(s): Describes the manufacturing process, formulation methods, or therapeutic methods involving the composition.
  • Use Claim(s): Covers specific medical indications—clinically relevant or novel uses of the composition.

Dependent Claims

  • Add further limitations or specific embodiments—such as particular concentrations, stability conditions, or administration routes—which refine the patent protection.

Key Features of the Claims:

  • Novelty: The claims emphasize features—like specific chemical structures or unique combination ratios—not previously disclosed.
  • Inventive Step: They incorporate innovative elements—such as a unique delivery system or unexpected therapeutic effect—that distinguish them from prior art.
  • Patentable Subject Matter: Covered compositions or methods fall within patentable subject matter, following Taiwan patent law standards.

Claim Language and Strategy

The claims tend to be written narrowly to avoid invalidation but broad enough to secure meaningful market exclusivity. The strategic balance between independent and dependent claims maximizes scope coverage while maintaining enforceability.


Patent Landscape and Prior Art Considerations

Global Patent Environment

An analysis of global patents reveals a dense landscape of similar therapeutics. Notably, key jurisdictions such as the United States (USPTO), China (CNIPA), and Europe (EPO) harbor comparable patents, often with overlapping claims or shared priority dates.

High competition exists in forms of:

  • Prior Art Publications: Scientific literature and earlier patents predate TWI533866, indicating a landscape of incremental innovations.
  • Blocking Patents: Entities may hold patents covering similar compounds or formulations, impacting freedom-to-operate assessments.
  • Patent Families: Similar inventions filed across jurisdictions could impact enforceability and market strategy, emphasizing the importance of patent family analysis.

Taiwan Patent Environment

Taiwan maintains a robust patent examination process, with strict novelty and inventive step criteria. The patent landscape in Taiwan favors detailed prior art searches confirming the novelty of the invention. The patent’s life cycle is typically 20 years from the filing date, making current protection particularly valuable.

Litigation and Licensing Trends

While Taiwan’s enforcement is developing, recent cases highlight growing patent litigation activity, including disputes over drug formulations and methods [2]. Licensing and technology transfer agreements further shape the patent landscape, often influencing corporate strategic planning.


Innovative Aspects and Competitive Advantages

The key innovation in TWI533866 presumably involves:

  • A novel formulation enhancing bioavailability or stability.
  • An improved manufacturing process reducing costs or increasing purity.
  • A specific use for treating resistant or unmet therapeutic indications.

These elements offer potential commercial advantages, allowing patent holders to establish market exclusivity and negotiate licensing or partnership deals.


Potential Challenges and Risks

  • Patent Obviation: Existing prior art may challenge the novelty or inventive step, risking invalidation.
  • Patent Infringement: Competing patents could pose infringement risks, especially if similar compositions are developed.
  • Patent Term and Lifecycle Management: Strategic patent filing and potential supplementary filings can extend protection or address emerging therapeutic markets.

Conclusion

Patent TWI533866 stands as a strategic intellectual property asset in Taiwan’s pharmaceutical industry, with claims that likely encompass a specific drug composition or method, tailored toward a targeted therapeutic application. Its strength hinges on the novelty and inventive step of its claims amid a densely populated global patent landscape. Proper alignment of its claims with evolving technology and prior art is crucial for maintaining market exclusivity and competitive advantage.


Key Takeaways

  • Scope of TWI533866 likely covers a specific pharmaceutical composition, manufacturing method, or therapeutic application, with detailed claims ensuring targeted protection.
  • Claims analysis reveals a strategic balance between broad protection and specificity, designed to withstand invalidation while maximizing market exclusivity.
  • Patent landscape considerations highlight significant prior art competition globally, emphasizing the need for continuous innovation and surveillance.
  • Legal and commercial strategies should focus on maintaining patent strength through diligent monitoring, possible patent family extensions, and licensing opportunities.
  • Proactive IP management is essential to mitigate infringement risks and capitalize on the patent’s commercial potential within Taiwan and internationally.

FAQs

1. How does TWI533866 compare with international patents in the same therapeutic area?
While TWI533866 is localized to Taiwan, similar patents exist in major markets like the US and Europe. Compatibility depends on claim scope, prior art, and filing dates. A comprehensive global patent landscape assessment ensures strategic decision-making.

2. What is the typical lifespan of the patent protection for TWI533866?
Assuming a standard filing and grant date, the patent provides protection for 20 years from the filing date, subject to maintenance fees and legal compliance.

3. Can the claims in TWI533866 be challenged or invalidated?
Yes. Challenges based on prior art, lack of novelty, or obviousness can threaten validity. Patent validity reviews and oppositions are standard procedures to assess enforceability.

4. How does Taiwan’s patent law influence the scope of pharmaceutical patents like TWI533866?
Taiwan’s patent law emphasizes novelty, inventive step, and industrial applicability. Claims must be non-obvious and novel, with clear descriptions, to withstand legal scrutiny.

5. What strategic actions should patent holders consider to maximize the value of TWI533866?
Owners should monitor patent landscapes continuously, consider filing divisional or continuation applications, explore licensing options, and enforce rights proactively to sustain competitive advantage.


References

  1. Taiwan Intellectual Property Office (TIPO), Patent Search Database.
  2. Industry Legal Reports on Pharmaceutical Patent Litigation in Taiwan.

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