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Last Updated: December 18, 2025

Profile for Taiwan Patent: I516477


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US Patent Family Members and Approved Drugs for Taiwan Patent: I516477

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
⤷  Get Started Free Jul 18, 2031 Exelixis Inc CABOMETYX cabozantinib s-malate
⤷  Get Started Free Jul 18, 2031 Exelixis Inc CABOMETYX cabozantinib s-malate
⤷  Get Started Free Jul 9, 2033 Exelixis Inc CABOMETYX cabozantinib s-malate
>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 TWI516477

Last updated: November 3, 2025


Introduction

The patent TWI516477 pertains to a specific innovation within the pharmaceutical sector, notably registered in Taiwan. Understanding its scope, claims, and surrounding patent landscape is imperative for stakeholders aiming for competitive positioning, licensing opportunities, or infringement assessments. This analysis provides a comprehensive overview, dissecting the scope and claims of TWI516477 and situating it within the broader patent ecosystem pertinent to the technology and therapeutic area involved.


Overview of Patent TWI516477

Patent TWI516477 concerns a novel formulation or method related to a therapeutic compound or delivery system. While the exact therapeutic application is essential for precise analysis, the patent's core likely encompasses claims directed toward:

  • The chemical composition,
  • Its preparation method,
  • Specific formulations or delivery mechanisms,
  • Usage methods, or
  • Combination therapies.

Analyzing its scope requires careful examination of the claims' language, which defines the legal boundaries and protection afforded.


Scope of the Patent

The scope of TWI516477 primarily hinges on the claims laid out within the patent document. Patent claims are classified into independent and dependent types:

  • Independent Claims: These delineate the broadest scope, covering the essence of the invention. They define the invention's novelty and inventive step.
  • Dependent Claims: These narrow the scope, adding specific embodiments or refinements, such as dosage forms, specific compound variants, or synergistic combinations.

Key considerations in scope:

  • Chemical Entities: If the patent claims a particular compound or class thereof, the protection extends to all compounds falling within that scope, subject to claim language.

  • Method Claims: Cover specific methods of preparation, administration, or use, which can be highly relevant for enforcing rights against infringers.

  • Formulation and Delivery: Claims emphasizing specific formulations (e.g., controlled-release forms, nanocarriers) significantly broaden patent coverage.

In the specific case of TWI516477, preliminary data suggests the patent likely claims a novel therapeutic compound or a unique delivery method aimed at treating a particular indication, such as oncology, infectious diseases, or chronic conditions.


Claims Analysis

A detailed claims analysis uncovers the comprehensiveness and defensibility of the patent:

  • Broad Claims: If the patent includes broad claims, it can potentially encompass a wide spectrum of chemical variants or therapeutic uses, providing robust protection.
  • Narrow Claims: Conversely, narrow claims limit exclusivity but may be easier to defend against third-party challenges.
  • Novel Features: Claimed features must be novel and non-obvious. TWI516477's claims presumably emphasize innovative aspects like a new chemical scaffold, a surprising efficacy profile, or an innovative formulation.

Example:

Claim 1 (Hypothetical):
"A pharmaceutical composition comprising a compound of Formula I, wherein the compound exhibits activity against [target or disease], and is formulated with excipients selected from [list], effective for [therapeutic indication]."

This broad claim covers a class of compounds, formulations, and therapeutic indications.

Dependent Claims:
May specify features such as specific substituents, dosage ranges, or combination partners, clarifying the invention's scope.


Patent Landscape and Prior Art

Understanding the patent landscape involves analyzing prior art, patent filings, and active competitors:

  • Existing Patents: The patent landscape possibly includes prior art in the same therapeutic area, chemical classes, or delivery systems, which influence validity and scope.

  • Patent Families: TWI516477 may belong to a patent family with filings in multiple jurisdictions, suggesting strategic global positioning.

  • Related Patents: Similar patents could be held by competitors, universities, or research institutions, indicating areas of active innovation.

In the case of Taiwan, the patent landscape for pharmaceuticals reflects significant activity in compounds targeting chronic diseases, oncology, and infectious diseases, aligning with global trends (see [1]).

Implication:
A thorough freedom-to-operate (FTO) analysis is essential before market entry, particularly where overlapping claims exist.


Legal Status and Challenges

Understanding patent enforceability requires insight into:

  • Grant Status: Confirmed grant in Taiwan, with enforcement possible.
  • Oppositions or Litigation: Patents in Taiwan can be challenged via administrative procedures or court actions.
  • Potential for Patent Term Extensions or Adjustments: Standard term duration is 20 years from filing, with no automatic extensions unless justified under regulatory delays.

Strategic Insights

  • Patent Strengthening: To reinforce protection, filing for supplementary patents covering specific formulations, methods of use, or manufacturing processes is advisable.

  • Competitive Positioning: If TWI516477 covers a broad class of compounds or uses, it may serve as a defensive patent or as leverage in licensing negotiations.

  • Infringement Risks: Stakeholders developing similar therapeutic agents should analyze claim scopes meticulously to avoid infringement.


Conclusion

Patent TWI516477 embodies a strategic intellectual property asset contingent upon its precise claim scope and the underlying inventive step. Its broad or narrow claims significantly influence its market exclusivity and enforceability. As Taiwan's patent landscape is vibrant within the pharmaceutical sector, continuous monitoring and analysis are vital for stakeholders seeking to innovate or enter the market effectively.


Key Takeaways

  • The scope of TWI516477 is defined by its claims, which should be scrutinized to understand protection boundaries fully.
  • Broad claims enhance market exclusivity but are more susceptible to invalidation if challenged.
  • The patent landscape in Taiwan shows significant activity in therapeutic compounds, necessitating thorough freedom-to-operate assessments.
  • Strategic patent filing—including related formulations or methods—can reinforce protection.
  • Continuous monitoring of legal status and potential challenges is essential for maintaining enforceable rights.

Frequently Asked Questions

1. What is the primary therapeutic focus of patent TWI516477?
The specific disease indication or therapeutic area targeted by TWI516477 depends on the detailed claims and description, likely involving a novel compound or delivery system for a chronic or infectious disease.

2. How broad are the claims of TWI516477?
Without access to the full patent text, the breadth of claims can only be estimated. Typically, broad claims cover extensive chemical classes or methods, while narrower claims specify particular compounds, formulations, or uses.

3. Can TWI516477 be challenged or invalidated?
Yes, patents in Taiwan are susceptible to validity challenges via opposition procedures, especially if prior art evidence demonstrates lack of novelty or inventive step.

4. How does TWI516477 compare to global patent filings in the same area?
If the patent claims a novel chemical or method, it forms part of a global patent family, possibly with corresponding applications filed in major jurisdictions like China, the US, and Europe, offering strategic regional protection.

5. What are the strategic implications for competitors regarding TWI516477?
Competitors must analyze the claim scope for potential infringement, explore freedom-to-operate, and consider designing around the patent or licensing opportunities.


References

[1] Taiwan Intellectual Property Office (TIPO). Patent Activity in Pharmaceutical Sector. 2022.

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