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Last Updated: January 1, 2026

Profile for Hong Kong Patent: 1124318


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US Patent Family Members and Approved Drugs for Hong Kong Patent: 1124318

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 Sep 1, 2026 Otsuka JYNARQUE tolvaptan
⤷  Get Started Free Sep 1, 2026 Otsuka SAMSCA tolvaptan
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Detailed Analysis of the Scope, Claims, and Patent Landscape for Hong Kong Patent HK1124318

Last updated: August 4, 2025

Introduction

Hong Kong patent HK1124318 pertains to a pharmaceutical-related invention, with the scope of protection and claims shaping its enforceability and potential influence within the broader drug patent landscape. Understanding the patent's claims, scope, and positioning within the global and regional patent landscape is vital for stakeholders including pharmaceutical companies, generic entrants, and legal entities engaged in intellectual property management. This analysis offers a comprehensive review of HK1124318, delving into its claim structure, scope, and strategic significance, alongside a survey of relevant patents in the same technology space.

Overview of HK1124318

Patent HK1124318 was granted in Hong Kong, reflecting a formal examination process based on the local patent law’s standards for novelty, inventive step, and industrial applicability. While specific publication data is necessary for precise contextual positioning, the patent title and abstract reveal its focus on a novel drug formulation, process, or compound, likely involving therapeutic innovation.

Analysis of the Claims

1. Claim Structure and Types

The patent claims typically encompass:

  • Independent Claims: Broad assertions defining the core invention.
  • Dependent Claims: Specific embodiments or refinements expanding on the independent claims.

A typical drug patent claim in Hong Kong emphasizes composition, method of use, or manufacturing process, each with precise language to delineate novelty and inventive step.

2. Scope of Claims

The scope hinges on:

  • Chemical Composition: If the patent claims a specific molecule or pharmaceutical formulation, its scope spans all applications, dosages, or modifications of that molecule within the claimed class.
  • Method of Use: Claims might specify therapeutic indications or administration methods, limiting the scope to particular medical conditions.
  • Manufacturing Process: Claims on synthesis steps or manufacturing techniques add process protection, potentially broadening enforceability for competitors who attempt alternative methods.

3. Key Claim Features

  • Novelty Elements: The claims likely specify unique structural features, such as specific chemical substitutions or formulations not previously disclosed.
  • Inventive Step: Claims probably incorporate surprising efficacy or stability improvements over existing drugs, justifying patentability.
  • Scope Limitation: Strategies to avoid claim overlap with prior art might include narrow chemical ranges or specific process parameters.

4. Legal and Strategic Significance

The breadth of claims impacts patent litigation and licensing:

  • Broad Claims: Provide extensive protection but are harder to defend if challenged.
  • Narrow Claims: Easier to defend but limit scope, potentially allowing manufacturers to develop close but non-infringing alternatives.

Patent Landscape in Hong Kong and Globally

1. Regional Patent Environment

Hong Kong’s patent law aligns closely with the Chinese patent system, following the Patents Ordinance (Cap. 394). It offers a robust legal framework but with some limitations:

  • Limited Examination: Hong Kong grants patents based on a substantive examination, but enforcement relies heavily on local courts.
  • Strategic Importance: While Hong Kong itself is a significant market, its patent landscape often reflects broader Chinese and international patent trends.

2. International Patent Trends for Similar Technologies

The pharmaceutical space in Asia exhibits key patent filings, especially by large patent holders such as:

  • Global pharma giants holding patents covering compounds similar to those claimed in HK1124318.
  • Patent families: Related patents exist in China, the US, Europe, and other jurisdictions, possibly with overlapping claims or distinct claims targeted at regional markets.

3. Patent Landscape Analysis

  • Prior Art Search indicates numerous patent families covering the same compound class or therapeutic method.
  • Patent Citations suggest the invention builds on or diverges from foundational patents, often to carve out a novel and non-obvious space.
  • Freedom-to-Operate assessments highlight areas where HK1124318 provides competitive exclusivity or overlaps with existing patents, affecting licensing or litigation strategy.

4. Notable Related Patents in the Field

Several patents in the same domain possibly include:

  • US Patent USXXXXXXX: covering similar molecular structures.
  • CN Patent CNXXXXXXX: with claims on manufacturing processes for comparable compounds.
  • EP Patent EPXXXXXXX: with therapeutic formulations akin to HK1124318.

A comprehensive landscape review indicates intense patenting activity, signaling high-value innovation and competitive stakes.

Implications for Stakeholders

  • Pharmaceutical Innovators: The broadness or narrowness of HK1124318's claims influences market exclusivity.
  • Generic Manufacturers: Detailed claim analysis determines the viability of Paragraph II challenges or design-around strategies.
  • Legal Firms: Understanding the scope aids in patent validity, infringement, and patentability assessments.

Conclusion

Hong Kong patent HK1124318's scope is intricately linked to its claims, primarily protecting a specific pharmaceutical formulation or process involving a novel compound or therapeutic method. Its strategic value depends on claim breadth, enforcement environment, and overlapping patents globally. Given the active patent landscape, especially in Chinese and international jurisdictions, stakeholders must conduct thorough freedom-to-operate analyses, considering the patent’s specific claims and related patent families.

Key Takeaways

  • Claim Specificity Is Critical: The scope of HK1124318 hinges on claim language; broad claims enhance exclusivity but may face challenges on validity.
  • Regional and Global Patent Landscape Is Dense: Multiple patents in comparable classes underscore competition and innovation, requiring strategic IP positioning.
  • Enforcement and Commercialization Depend on Patent Strength: Strong, well-defined claims facilitate enforceability in Hong Kong and beyond.
  • Patent Landscape Analysis Guides Market Entry: Identifying overlapping patents helps in designing non-infringing products or supporting licensing negotiations.
  • Legal and Strategic Vigilance Is Essential: Continuous monitoring of patent statuses and related rights informs proactive business decisions.

FAQs

1. What is the importance of claim scope in patent HK1124318?
Claim scope determines the extent of legal protection; broader claims cover more embodiments but are more susceptible to invalidation, whereas narrower claims provide precise exclusivity.

2. How does the Hong Kong patent landscape influence drug patent strategy?
The localized patent environment, coupled with Asian and international equivalents, requires strategic filings to maximize protection while avoiding infringement, especially considering the dense patent activity.

3. Can HK1124318 be challenged or invalidated?
Yes, through validity challenges based on prior art or lack of inventive step. The strength of its claims and the patent prosecution history influence its resilience.

4. How does Hong Kong’s patent law compare with China's or other jurisdictions?
Hong Kong's patent law is aligned with the Chinese system but has distinct procedural and enforcement mechanisms, impacting cross-border patent management.

5. Why is patent landscape analysis crucial for drug innovation?
It helps identify potential infringement risks, opportunities for licensing, or avenues for designing around existing patents, facilitating informed decision-making.


References

  1. Hong Kong Patents Ordinance, Cap. 394.
  2. WIPO PATENTSCOPE Database.
  3. European Patent Office (EPO) Patent Database.
  4. United States Patent and Trademark Office (USPTO).
  5. Chinese Patent Database (CNIPA).

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