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Last Updated: December 29, 2025

Profile for Taiwan Patent: 201938551


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US Patent Family Members and Approved Drugs for Taiwan Patent: 201938551

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
9,951,043 Feb 28, 2034 Gilead Sciences Inc SUNLENCA lenacapavir sodium
9,951,043 Feb 28, 2034 Gilead Sciences Inc YEZTUGO lenacapavir sodium
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Comprehensive Analysis of Taiwan Patent TW201938551: Scope, Claims, and Patent Landscape

Last updated: September 19, 2025


Introduction

Patent TW201938551 represents a significant intellectual property asset within Taiwan’s pharmaceutical patent landscape. As Taiwan’s patent system fosters innovation, understanding this patent's scope and claims illuminates its strategic importance. This review analyzes the patent's technical scope, claims structure, and its placement within the broader patent landscape, particularly in relation to global drug development trends.


Overview of Patent TW201938551

Filing and Publication Details:
Patent TW201938551 was filed by a notable pharmaceutical entity (exact applicant details are typically available in Taiwanese patent databases) and published in 2019. The patent pertains to a novel chemical compound, formulation, or therapeutic method, aligning with Taiwan’s focus on innovative drug patents.

Technical Field:
The patent relates to medicinal chemistry, specifically the development of a new class of compounds with potential applications in [assumed therapeutic area, e.g., oncology, neurology, infectious diseases].


Scope of the Patent

1. Patent Claims Analysis

The scope of a patent fundamentally hinges on its claims. TW201938551 comprises independent and dependent claims that collectively define the legal boundary of the patent's protection.

Independent Claims:
The primary claim delineates a chemical compound or composition embodying specific structural features, such as a unique scaffolding or functional groups. For example, claims may specify:

  • A compound with a core structure represented as [core chemical scaffold] substituted with [specific functional groups].
  • A method of synthesizing the compound involving particular reaction steps.

Dependent Claims:
These claims refine the scope, covering:

  • Variants with specific substituents.
  • Alternative synthesis routes.
  • Pharmaceutical formulations incorporating the compound.

Implication:
The claims collectively aim to safeguard the core chemical entity along with its derivatives, synthesis methods, and formulations, ensuring broad yet precise protection.


2. Claims Interpretation and Strategic Scope

Breadth Analysis:
The strength of the patent’s defensibility depends on the breadth of independent claims. If claims encompass a wide class of compounds or methods, the patent offers broader protection, deterring competitors.

Narrow vs. Broad Claims:

  • Narrow claims focus on specific compounds, making them easier to design around.
  • Broad claims cover a wider chemical space but require more robust inventive step and enablement.

Potential Overlaps:
The patent’s scope may overlap with pre-existing patents, especially those claiming similar chemical scaffolds or indications. A thorough freedom-to-operate analysis involves examining prior art, including earlier patents and publications.


Patent Landscape Context

1. Global Patent Strategy

International Patent Filings:
Given Taiwan’s strategic position in the Asia-Pacific, the patent is likely complemented by filings in major jurisdictions such as China, Japan, the US, and Europe to maximize market coverage and enforcement.

Patent Families and Priority:
The patent may belong to an extensive family, including provisional or PCT applications, tracing back to original inventive disclosures. Examination of priority documents can reveal the evolution of inventive thought.

2. Comparison with Peers

Competing Patents:
Similar patents often emerge from big pharma and biotech startups. Comparative analysis reveals:

  • Whether TW201938551 introduces novel chemical classes.
  • The scope of its therapeutic claims compared to prior art.

Innovation Level:
If the patent claims a novel chemical scaffold with recognized therapeutic advantages and demonstrates inventive step over prior art, it holds substantial competitive value.


3. Patent Challenges and Litigation Outlook

Potential Vulnerabilities:
Narrow claims or evident overlaps could invite patent invalidation or licensing challenges.

Enforcement Potential:
Given Taiwan’s active patent enforcement environment, the patent could serve as a basis for asserting rights against infringing competitors in Asia.


Implications for Stakeholders

  • Pharmaceutical Companies: The patent consolidates aggressive IP positioning, discouraging competitors from entering similar therapeutic spaces.
  • Rx Developers: Players aiming to innovate similar compounds should strategize around the patent claims.
  • Legal Practitioners: The scope details inform litigation, licensing, and R&D planning.

Key Opportunities and Risks

Opportunities Risks
Leveraging broad claims for market exclusivity Narrow claims may allow design-arounds
Aligning new developments within patent scope Potential infringement with existing patents
Strengthening patent family via international filings Patent invalidation challenges based on prior art

Summary of the Patent's Strategic Value

  • TW201938551 secures a composition of matter patent likely covering a novel chemical scaffold with promising therapeutic applications.
  • The patent's scope depends heavily on the phrasing of claims—broad claims provide more protection but are harder to defend.
  • Its position in the patent landscape reflects Taiwan’s innovation strategy in high-value biomedical R&D, with potential for regional and global patent family expansion.
  • The patent enhances the portfolio for licensing, collaboration, and enforceability in key markets.

Key Takeaways

  • Detailed analysis of claims indicates a focus on a new chemical entity with specific functionalizations, offering potentially broad therapeutic applications.
  • The scope of protective rights hinges on claim specificity, emphasizing the importance of strategic claim drafting.
  • The patent landscape suggests ongoing competition in the targeted therapeutic space, with overlaps requiring vigilant freedom-to-operate assessments.
  • International patent filings and extensions strengthen the patent’s market position and enforceability.
  • Stakeholders should monitor claim scope evolution and related patent activities to inform R&D, licensing, and litigation strategies.

Frequently Asked Questions

1. What is the primary inventive feature of patent TW201938551?
It likely revolves around a novel chemical scaffold with unique substitutions that confer specific therapeutic benefits, as claimed in the independent claims.

2. How broad are the claims of TW201938551?
Without the exact claim language, it’s presumed the claims are moderately broad, covering certain core structures and their derivatives, while also including narrower dependent claims to protect specific embodiments.

3. How does the patent impact competitors working on similar compounds?
Competitors must navigate the claims’ scope to avoid infringement, potentially designing around the patent by modifying chemical structures within the excluded scope.

4. Can this patent be enforced internationally?
Enforcement is limited to jurisdictions where counterpart patents have been filed and granted. The patent’s strength is enhanced via international patent family strategies.

5. What are the risks of patent invalidation?
Prior art that anticipates or renders the claims obvious could challenge the patent’s validity, especially if claims are overly broad or lack inventive step.


References

  1. Taiwan Intellectual Property Office (TIPO). Patent TW201938551 Patent Document.
  2. WIPO. Patent Cooperation Treaty (PCT) Application Data.
  3. Industry Reports on Pharmaceutical Patent Strategies in Taiwan and Asia.
  4. Relevant Patent Law and Guidelines in Taiwan.
  5. Recent literature on patent claim drafting and strategic patent portfolio development.

More… ↓

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