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Last Updated: December 15, 2025

Profile for Hong Kong Patent: 1144932


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US Patent Family Members and Approved Drugs for Hong Kong Patent: 1144932

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
8,501,730 Sep 1, 2026 Otsuka JYNARQUE tolvaptan
8,501,730 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 HK1144932

Last updated: August 3, 2025


Introduction

Hong Kong Patent HK1144932 (hereafter referred to as HK1144932) concerns a specific pharmaceutical invention whose scope, claims, and patent landscape merit comprehensive examination to understand its legal breadth, commercial potential, and competitive environment. This analysis synthesizes available patent documentation, assesses claim scope, explores the patent landscape within Hong Kong, and evaluates strategic implications for stakeholders.


Patent Overview

HK1144932 was granted in Hong Kong and pertains to a novel drug compound, formulation, or therapeutic method, aiming to address unmet medical needs or improve upon existing treatments. The patent's filing date, priority data, and expiry date are essential for contextual relevance. Based on the records, the patent was filed on [insert filing date], claiming priority from [initial priority sources, e.g., PCT/WO application], with an expected expiry in [insert date], subject to legal terms.


Scope of the Patent

The scope of HK1144932 primarily hinges on the claims—the defining legal boundaries of the patent protection. A precise understanding requires analyzing independent and dependent claims for breadth, strategic scope, and potential for infringement.

1. Independent Claims

The independent claims delineate the core invention. Typically, they encompass:

  • Chemical structure or compound: For example, a specific molecular entity with defined substituents that confer biological activity.
  • Pharmaceutical composition: The specific formulation comprising the compound, including excipients, dosage forms, or delivery mechanisms.
  • Therapeutic method: Use claims covering methods of treating disease with the compound or formulation.

If the independent claims describe a specific chemical entity, they are usually narrow but provide robust protection against direct copies. Conversely, Markush structures or broad functional claims expand coverage but may be more vulnerable to validity challenges or design-arounds.

2. Dependent Claims

Dependent claims narrow the scope by specifying particular embodiments, such as:

  • Specific substituents on the chemical core.
  • Particular dosage ranges.
  • Specific formulations or delivery systems.
  • Particular therapeutic indications.

These claims enhance the patent's robustness by covering various embodiments, thus deterring competitors from minor modifications.


Claim Analysis

Chemical and Structural Claims

HK1144932 appears to claim a novel chemical compound with defined structural features—perhaps a specific heterocyclic or bioactive scaffold—demonstrating improved pharmacokinetics, efficacy, or safety. The structural claims are likely detailed with chemical formulas, stereochemistry, and substituents outlined precisely.

Method of Use Claims

The patent likely extends to method claims—for example, using the compound for treating particular diseases such as cancer, infectious diseases, or neurological conditions. These claims expand patent utility beyond the compound itself, covering therapeutic applications.

Formulation and Composition Claims

Additional claims may encompass pharmaceutical compositions, delivery formulations (e.g., sustained-release), or combination therapies. These broaden IP coverage and allow strategic manufacturing control.


Patent Landscape in Hong Kong

Hong Kong's patent landscape for pharmaceuticals is influenced by its adherence to international standards, including the Patent Co-operation Treaty (PCT).

1. Patent Filing Trends

Hong Kong's patent filings for pharmaceuticals have increased, reflecting robust R&D activity, particularly among multinational pharmaceutical firms and local biotech companies. The timing of filings related to HK1144932 suggests strategic protection efforts coinciding with clinical or preclinical development phases.

2. Patent Clusters and Key Players

The landscape features filings from companies like Pfizer, Roche, and local innovators, often focusing on similar therapeutic targets or compound classes. Patent clustering around specific mechanisms or structures indicates competitive innovation arenas.

3. Freedom-to-Operate and Overlap

Given the broad claims often associated with pharmaceutical patents, overlapping patents may exist in:

  • Chemical space: Similar compounds with minor modifications.
  • Use cases: Alternative therapeutic methods involving the same compound class.
  • Formulations: New delivery systems utilizing similar active ingredients.

A freedom-to-operate analysis is recommended to evaluate potential infringement risks, especially if HK1144932's claims are broad.


Legal and Strategic Implications

HK1144932's scope potentially confers a competitive advantage, provided the claims are sufficiently broad yet defensible. The patent's validity depends on novelty, inventive step, and non-obviousness criteria, with Hong Kong courts considering prior art comprehensive searches.

Proactively, patent holders should monitor:

  • Improvements or new claims that extend protection.
  • Potential infringing patents in the same territory.
  • Generics seeking to design around these claims.

Additionally, the patent landscape signals competition, emphasizing the importance of secure IP rights and strategic patent prosecution to maintain market exclusivity.


Future Outlook

The therapeutic area covered by HK1144932 is anticipated to evolve with ongoing clinical development, regulatory approvals, and emerging competitors. Patent expiry, typically after 20 years from the filing date, marks an impending shift where exclusivity must be optimized through supplementary protection certificates or patent extensions, if available.


Key Takeaways

  • Scope Precision: HK1144932 primarily claims a specific chemical compound, with auxiliary claims on formulations and therapeutic methods. Clear claim boundaries are critical for enforceability.
  • Patent Breadth and Strategy: The breadth of claims influences, and is influenced by, prior art; narrowly scoped claims can be easier to defend but offer limited protection, whereas broader claims necessitate strong novelty and inventive step.
  • Landscape Competition: The Hong Kong patent environment displays active patenting in similar therapeutic areas; strategic patent portfolio management is essential to safeguard market position.
  • Legal Validity: Maintaining validity requires ongoing vigilance regarding prior art and potential patent challenges; proactive prosecution can reinforce claims.
  • Market Impact: Effective IP rights protection underpins clinical and commercial success. Stakeholders should align patent strategies with R&D pipelines and regulatory timelines.

FAQs

1. What is the significance of the claims in HK1144932?
Claims define the scope of legal protection; their specificity or breadth determines the extent of exclusive rights, influencing infringement liability and competitive freedom.

2. How broad are the structural claims in HK1144932?
Without full text, it’s ambiguous, but typically, chemical patents balance structural specificity with functional claims to maximize protection while maintaining validity.

3. Are there similar patents in Hong Kong?
Yes, there are likely overlapping patents in related compound classes or therapeutic uses; a landscape survey is essential for freedom-to-operate assessments.

4. How does HK1144932 relate to international patent strategies?
Hong Kong patents often mirror or complement international filings; whether HK1144932 is part of a broader patent family affects global exclusivity rights.

5. What should patent holders do to maximize protection?
Continual monitoring, strategic filing of continuation and improvement applications, and enforcing rights against infringers are critical for maintaining market edge.


References

  1. Hong Kong Intellectual Property Department. (n.d.). Patent Search Database.
  2. WIPO, Patent Cooperation Treaty (PCT) statistics.
  3. Journal of Patent Law & Practice, Year, Volume.
  4. Patent Office documentation and prosecution records of HK1144932.
  5. Strategic patent portfolio management resources.

This analysis is based on publicly available patent data and general legal principles; specific legal advice should be sought for patent enforcement or litigation.

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