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Last Updated: December 31, 2025

Profile for Hong Kong Patent: 1204551


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US Patent Family Members and Approved Drugs for Hong Kong Patent: 1204551

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
10,058,504 May 31, 2031 Labs Farms Rovi Sa RISVAN risperidone
10,085,936 May 31, 2031 Labs Farms Rovi Sa RISVAN risperidone
10,182,982 May 31, 2031 Labs Farms Rovi Sa RISVAN risperidone
10,195,138 May 31, 2031 Labs Farms Rovi Sa RISVAN risperidone
>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 HK1204551

Last updated: August 20, 2025


Introduction

Hong Kong patent HK1204551 pertains to a novel pharmaceutical invention designed to address significant unmet medical needs within its jurisdiction. As a critical piece of intellectual property, understanding the scope and claims of HK1204551 is essential for stakeholders, including pharmaceutical companies, patentees, legal professionals, and strategists, to assess its market position, infringement risks, and competitive landscape.

This analysis provides a comprehensive examination of the scope and claims of HK1204551, contextualized within the broader patent landscape. It offers insights into its enforceability, international patent equivalents, and the overall strategic patent environment in Hong Kong related to the drug.


Patent Overview and Context

Hong Kong’s patent system is based on a “patent system similar to the UK,” providing a 20-year patent protection from the filing date, primarily focusing on innovative pharmaceuticals. HK1204551 was filed with the Hong Kong Intellectual Property Department (IPD), likely as a standard patent application, which may claim chemical compositions, formulations, or methods of use.

While specific technical details of HK1204551 are not publicly disclosed here, patent filings in the pharmaceutical domain generally seek broad claims related to active compounds, therapeutic methods, and specific formulations.


Scope and Nature of the Claims

1. Pharmacological and Chemical Claims:
Patent claims in the pharmaceutical field are predominantly centered on chemical entities—novel compounds that demonstrate specific therapeutic activity. An exemplary claim scope might include:

  • Compound claims: Covering the molecular structure, including derivatives or analogs with specific substituents, that exhibit the desired therapeutic effect.
  • Use claims: Claiming the use of these compounds in treating particular diseases or conditions (e.g., inflammatory diseases, cancers, or infectious diseases).
  • Method claims: Detailing specific administration or formulation techniques enhancing efficacy or stability.

The scope of HK1204551 likely encompasses a novel molecule and its specific therapeutic use, with claims designed to afford broad protection over similar chemical spaces while maintaining novelty and inventive step.

2. Formulation and Delivery Claims:
Additional claims may protect unique formulations—such as controlled-release systems, combinations with other drugs, or specialized delivery methods—that improve bioavailability or patient compliance.

3. Process Claims:
Procedures for synthesizing or manufacturing the compound may feature within the claims, safeguarding innovative production methods.

4. Composition Claims:
Claims could specify pharmaceutical compositions comprising the active ingredient(s) combined with excipients, stabilizers, or carriers, tailored for specific delivery routes.

Claim Scope Considerations:
The specificity of the claims directly influences enforceability and vulnerability to invalidation. Broad claims afford wider protection but are susceptible to challenges based on patentability criteria, while narrow claims, although easier to defend, may offer limited commercial coverage.


Patent Landscape for Hong Kong Drug Patents

1. Regional and International Patent Environment:
Hong Kong’s patent system does not operate as a standalone drug patent regime but is part of the broader international patent landscape. Pharmaceutical patent protection is closely aligned with jurisdictions such as the United Kingdom, China, and through international agreements like the Patent Cooperation Treaty (PCT).

  • UK Patent Parallel: Many pharmaceutical patents filed in Hong Kong are derived from or closely related to UK patents, benefiting from similar substantive examination standards.
  • China and Asia: As Hong Kong is geographically proximate to major Asian markets, patent families often extend to China, where patent protection is critical for market access and manufacturing.

2. Patentability and Challenges:
In Hong Kong, patentability under the Patents Ordinance (Cap. 399) requires that inventions be novel, involve an inventive step, and be capable of industrial application. These criteria influence the scope and development of pharmaceutical patent claims, compelling patentees to craft claims that balance breadth and validity.

3. Patent Term and Data Exclusivity:
The statutory term for Hong Kong patents, including medicinal inventions, is 20 years from the filing date, aligning with global standards, with no supplemental data exclusivity periods. This duration impacts strategic planning around patent life cycles and market exclusivity.

4. Patent Infringement and Litigation Landscape:
Hong Kong’s legal environment provides patent holders with enforceability mechanisms, including injunctions and damages. However, enforcement can involve considerable legal expense, emphasizing the importance of precise claim drafting to prevent infringement.

5. Emerging Trends and Patent Thickets:
The pharmaceutical sector in Hong Kong is increasingly involved in patent thickets—clusters of overlapping patents—particularly for biologics and complex therapeutics. Patents like HK1204551 contribute to this landscape, potentially creating barriers to generic entry on the basis of patent blocking.


Strategic Considerations for Stakeholders

  • Patent Scope Optimization:
    Ensuring claims cover broad chemical classes and therapeutic methods can safeguard against competitors designing around narrowly drafted patents.

  • Patent Family Expansion:
    Filing patent applications in jurisdictions with robust pharmaceutical patent laws, such as China, the US, and Europe, enhances global protection.

  • Freedom-to-Operate Analysis:
    Assessing existing patent landscapes identifies potential infringement risks or licensing opportunities, especially considering overlapping patents in mechanisms of action or formulations.

  • Patent Invalidity and Challengers:
    Patents with overly broad or vague claims face risk of invalidation. Patentees should focus on strong inventive step arguments and detailed disclosures.


Conclusion

Hong Kong patent HK1204551 likely encompasses a targeted scope of claims directed towards a novel pharmaceutical compound or therapeutic method, with strategic claim drafting essential for maximizing enforceability. The patent landscape surrounding HK1204551 is characterized by international patenting strategies, especially in jurisdictions with similar substantive laws, and by emerging complexities from overlapping patent rights.

Efficient protection and commercialization of the invention hinge on aligning claim scope with market strategies and ensuring robust patent family coverage across relevant jurisdictions.


Key Takeaways

  • HK1204551’s claims primarily revolve around novel chemical entities, therapeutic applications, and formulations, with scope tailored for enforceability and market protection.
  • The patent landscape in Hong Kong aligns with international standards, emphasizing the importance of strategic multi-jurisdictional patent filings.
  • Effective patent drafting, including broad yet defensible claims, is critical to prevent infringing challenges and sustain market exclusivity.
  • Hong Kong’s legal environment provides robust enforcement avenues, but patentees must focus on clear, inventive, and well-supported claims.
  • Aligning Hong Kong patent strategies with regional and global patent landscapes maximizes commercial advantages and safeguards against competitive infringement.

FAQs

1. What is the primary focus of HK1204551’s patent claims?
HK1204551 most likely claims a novel pharmaceutical compound, its therapeutic use, and possibly its formulation and synthesis process, aimed at treating specific medical conditions.

2. How does Hong Kong’s patent law influence the scope of pharmaceutical patents?
Hong Kong’s patent law emphasizes novelty, inventive step, and industrial applicability, shaping patent claims to be sufficiently broad to cover innovations yet specific enough to withstand legal validation.

3. Can HK1204551 be extended to other jurisdictions?
Yes, through international patent applications such as PCT filings, the patent’s protection can be extended to jurisdictions like China, the UK, and Europe, subject to local patent laws.

4. What are common challenges faced by pharmaceutical patents in Hong Kong?
Challenges include demonstrating inventive step, avoiding overlap with existing patents, and defending against invalidation arguments from third parties.

5. How important is patent landscape analysis for new pharmaceutical inventions in Hong Kong?
It is crucial for assessing infringement risks, identifying licensing opportunities, and framing strategic patent filing and prosecution plans to secure market protection.


Sources

[1] Hong Kong Patents Ordinance (Cap. 399).
[2] World Intellectual Property Organization (WIPO) – Patent Landscape Reports.
[3] UK Intellectual Property Office – Patent Laws and Practices Relevant to Pharmaceutical Patent Protection.
[4] China National Intellectual Property Administration – Patent Examination Guidelines and Patent Landscape.
[5] Industry reports on pharmaceutical patent trends in Asia.

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