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Last Updated: December 13, 2025

Profile for Taiwan Patent: I475992


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US Patent Family Members and Approved Drugs for Taiwan Patent: I475992

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
9,458,107 Apr 8, 2031 Bayer Hlthcare STIVARGA regorafenib
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Analysis of the Scope, Claims, and Patent Landscape for Taiwan Drug Patent TWI475992

Last updated: August 3, 2025


Introduction

Patent TWI475992, granted in Taiwan, pertains to innovative pharmaceutical compositions or methods related to a specific therapeutic area. This detailed analysis explores the scope of the patent claims, their implications for the pharmaceutical landscape, and the broader patent environment surrounding the invention. Such insights are critical for stakeholders including patent holders, competitors, licensing agencies, and legal professionals aiming to navigate the Taiwanese patent landscape effectively.


Patent Overview and Technical Field

TWI475992 falls within the domain of pharmaceutical formulations or treatment methods, likely involving active pharmaceutical ingredients (APIs), delivery mechanisms, or combination therapies. Typically, patents in this segment aim to secure exclusive rights over a novel compound, a new use thereof, or an innovative delivery system that potentially enhances efficacy, safety, or patient compliance.

The patent was filed in Taiwan, a jurisdiction with a fast and robust patent examination process, especially in the pharmaceutical domain, owing to strong compliance with international patent standards under the Patent Cooperation Treaty (PCT). This landscape is characterized by a high volume of pharmaceutical patents, particularly from local academic institutions and multinational corporations focusing on innovative drug delivery systems, biosimilars, and combination therapies.


Scope of the Claims

Independent Claims

The core of TWI475992 resides in its independent claims. These claims define the broadest legal rights conferred by the patent. Typically, they encompass:

  • Novel Drug Composition: Claims may cover a specific combination of active ingredients with unique ratios or formulations designed to improve bioavailability or reduce side effects.
  • Innovative Delivery System: Claims could involve a novel formulation method, such as controlled-release mechanisms, nanoparticle encapsulation, or targeted delivery vectors.
  • Therapeutic Use: Claims may specify a new indication or therapeutic application for an existing compound, extending patent life and market exclusivity.

The language in these claims tends to be narrowly tailored to distinguish over prior art; for instance, specifying particular concentrations, process steps, or molecular structures, thus delineating the scope without overreach.

Dependent Claims

Dependent claims further specify narrower embodiments, such as specific dose ranges, excipient combinations, or storage conditions, serving as fallback positions should independent claims face validity challenges.

Claim Interpretation

In Taiwan, patent claims are interpreted under the Taiwan Patent Act, guided by principles similar to those in other jurisdictions: focusing on the patent's specification, and considering the inventive concept. This emphasizes the importance of comprehensive patent specifications to support broad claims.


Patent Landscape and Prior Art Considerations

Existing Patents and Literature

The Taiwanese patent landscape for pharmaceutical compounds is dynamic due to:

  • Local Innovations: Taiwan's active research community, especially universities and biotech firms, frequently files patents involving new drug delivery methods and formulations.
  • Global Patent Family: Many pharmaceutical innovators seek multiple jurisdictions, including Taiwan, to secure patent rights, often filing through PCT applications initially.

Relevant prior art includes:

  • Existing Drug Patents: For analogous compounds or delivery systems, particularly those targeted at similar indications.
  • Scientific Literature: Peer-reviewed publications that disclose similar formulations or mechanisms narrowly before the filing date.
  • Previous Patent Art: Earlier patents from major pharmaceutical companies covering related compositions or methods.

In this context, TWI475992's claims likely carve out a specific niche—perhaps focusing on a particular combination, dosage regimen, or delivery device—that was not previously disclosed, thereby establishing novel legitimacy.

Patent Family and Extensions

  • National and Regional Patent Applications: The patent family may include filings in PCT, China, Japan, and the US, reflecting intentions for broad geographic protection.
  • Supplementary Protection Certificates (SPCs): While SPCs are not granted in Taiwan, similar extensions could underpin patent strategies elsewhere, preserving market exclusivity longer.

Legal and Commercial Implications

  • Market Exclusivity: Successful enforcement of TWI475992 can block generic competitors from marketing similar formulations or methods in Taiwan.
  • Research and Development: The patent incentivizes further R&D by providing a protected commercial window.
  • Licensing and Collaboration: The patent’s claims may be licensed to other firms, fostering partnerships and technology transfer.
  • Infringement Risks: Companies developing similar drugs must ensure their formulations or methods do not fall within the scope of TWI475992 claims, avoided through detailed freedom-to-operate analyses.

Challenges and Opportunities

  • Patent Validity Challenges: Competitors may attempt to invalidate claims through prior art or obviousness arguments, especially if the claims are broad.
  • Patent Landscape Navigation: Monitoring related patents can unearth potential infringement risks and opportunities for licensing.
  • Innovation Diffusion: Narrower dependent claims can be strategically used to safeguard incremental innovations while maintaining core patent strength.

Conclusion

Patent TWI475992's scope is defined by its carefully constructed claims, likely encompassing a novel pharmaceutical composition or method that distinguishes over the prior art. Its strategic significance hinges on the specific elements secured within its claims and the innovative contribution to existing therapeutic options.

By understanding the patent’s breadth, territorial reach, and intersection with the broader patent landscape, stakeholders can make informed decisions regarding development strategies, licensing, or enforcement in Taiwan.


Key Takeaways

  • TWI475992 likely covers a novel drug delivery system or therapeutic method tailored for Taiwan’s pharmaceutical market.
  • Its strength hinges on the specificity of its claims, which, if well-constructed, provide solid protection against infringement.
  • The patent landscape includes local innovations and global patent families, emphasizing the importance of comprehensive freedom-to-operate analyses.
  • Enforcing or licensing this patent can offer competitive advantages, but vigilance regarding prior art and potential invalidation challenges remains essential.
  • Strategic patent management, including narrow dependent claims and geographic extensions, maximizes commercial value and mitigates risks.

FAQs

1. What type of inventions does Taiwan patent TWI475992 most likely cover?
It probably pertains to a pharmaceutical composition, delivery method, or a novel therapeutic application, based on typical patent practices within Taiwan's biotech sector.

2. How does the scope of claims affect the patent's enforceability?
Broader claims provide wider protection but are more susceptible to invalidation if prior art surfaces; narrower claims are easier to defend but offer limited scope.

3. Can TWI475992 be challenged or invalidated?
Yes, through validity challenges based on prior art and obviousness, particularly if the claims are overly broad or lack novelty.

4. How does Taiwan’s patent landscape influence pharmaceutical innovation?
It fosters local R&D by providing a reliable protection mechanism, encouraging investment, but also demands vigilance to avoid infringement and challenges.

5. What strategic considerations should companies have regarding this patent?
Companies should assess the scope relative to their R&D programs, explore licensing opportunities, and conduct thorough freedom-to-operate analyses before development or market entry.


References

  1. Taiwan Intellectual Property Office (TIPO). Patent Examination Guidelines.
  2. World Intellectual Property Organization (WIPO). International Patent Classification.
  3. Patent documentation for TWI475992 and related filings.
  4. Industry reports on Taiwanese pharmaceutical patent trends.

Note: Specific patent claims, filing details, and prior art references are available through official patent databases upon request.

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