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Last Updated: December 12, 2025

Profile for Hong Kong Patent: 1198162


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US Patent Family Members and Approved Drugs for Hong Kong Patent: 1198162

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 Dec 30, 2029 Ardelyx Inc IBSRELA tenapanor hydrochloride
⤷  Get Started Free Dec 30, 2029 Ardelyx Inc XPHOZAH tenapanor hydrochloride
⤷  Get Started Free Aug 1, 2033 Ardelyx Inc IBSRELA tenapanor hydrochloride
>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 HK1198162

Last updated: July 30, 2025


Introduction

Hong Kong patent HK1198162 pertains to a specific pharmaceutical invention, with the scope and claims underpinning its legal protection and commercial exclusivity. A comprehensive understanding of its scope, claims, and the patent landscape offers vital insights for stakeholders including pharmaceutical companies, generic manufacturers, and legal analysts seeking to evaluate the patent's strength, validity, and potential for licensing or challenge.

Patent Overview

HK1198162 was granted by the Hong Kong Intellectual Property Department (IPD). The patent likely covers a novel drug compound, formulation, method of manufacture, or therapeutic use, as common in pharmaceutical patents. Given Hong Kong’s patent framework adheres to the Patents Ordinance (Cap. 000), the patent's validity is subject to novelty, inventive step, and industrial applicability.


Scope of the Patent

The scope determines the extent of protection conferred by the patent, explicitly outlined by its claims. These claims specify the invention's boundaries and define what is deemed infringing.

Claims Analysis

While detailed claims excerpt are necessary for full analysis, typical drug patents encompass:

  • Compound Claims: Cover specific chemical entities or derivatives.
  • Formulation Claims: Protect particular excipient combinations or delivery systems.
  • Method Claims: Encompass specific methods of synthesis, administration, or therapeutic use.
  • Process Claims: Describe manufacturing processes for the drug.

Given the patent's nature, the claims most likely fall into one or more of these categories. For example, if the patent pertains to a novel small-molecule agent, the claims could define:

  • The chemical structure with specific substituents.
  • Methods of synthesis.
  • Pharmaceutical compositions containing the compound.
  • Therapeutic use claims for a particular indication.

Claim Scope Considerations:

  • Broadness: Wide claims over a chemical class or use can provide extensive protection but risk validity challenges on grounds of obviousness or insufficient disclosure.
  • Narrowness: More specific claims tend to be more defensible but offer limited market scope.
  • Dependence: Multiple dependent claims refine broader independent claims, building layered protection.

Patent Landscape

The patent landscape surrounding HK1198162 involves analyzing:

  • The prior art cited to establish novelty and inventive step.
  • Overlapping patents granted in Hong Kong and internationally.
  • Related patent filings in jurisdictions like China, the US, Europe, and Asia-Pacific regions.

International Patent Family and Related Filings

Most major pharmaceutical patents originate as patent families—sets of filings across jurisdictions claiming similar or identical inventions. A review of the International Patent Classification (IPC) and Cooperative Patent Classification (CPC) helps categorize the invention's technical field, likely falling under classes such as:

  • A61K (Preparations for medical, dental, or hygienic purposes),
  • C07D (Heterocyclic compounds), or
  • A61P (Therapeutic activity of chemical compounds).

If HK1198162 is part of an international patent family, similar patents or applications might exist in jurisdictions including the USA (USPTO), Europe (EPO), or China (SIPO).

Prior Art and Patentability

Analysis of prior art—publications, patents, or disclosures predating the Hong Kong filing—is essential to assess patentability. Technologies similar to HK1198162 may exist in:

  • Academic publications describing similar compounds or therapeutic uses.
  • Patents related to prior known compounds or formulations.
  • Public disclosures of synthesis methods or medical uses.

The robustness of the claims depends on how well the patent distinguishes its invention from such prior art, with considerations including:

  • Novel chemical entities,
  • Unexpected therapeutic effects,
  • Unique formulation strategies.

Legal and Commercial Landscape

Patent Lifespan

Given Hong Kong patents last for 20 years from the filing date, the patent's expiration is scheduled around the year 203X, assuming standard prosecution and maintenance fee payments. This duration impacts market exclusivity and licensing potential.

Patent Challenges and Litigation

  • Invalidity Grounds: Challenges may arise based on lack of novelty, obviousness, or insufficient disclosure.
  • Infringement Risks: Other firms marketing similar compounds or formulations could infringe, especially if claims are broad.
  • Oppositions: While Hong Kong does not have pre-grant opposition procedures, post-grant validity challenges can be brought under certain circumstances.

Competitive Landscape

In the global pharmaceutical arena, compounds protected by HK1198162 might face similar patents or patent applications elsewhere, influencing market entry strategies. Companies often perform freedom-to-operate (FTO) analyses to identify potential patent barriers.


Implications for Stakeholders

  • Pharmaceutical Innovators: The scope of HK1198162 can safeguard core compounds or methods, providing leverage in licensing negotiations.
  • Generic Manufacturers: Broader claims present barriers to entry post-expiry; narrow claims might allow for design-around strategies.
  • Legal Professionals: Validity assessments and infringement analyses hinge on claim interpretation and prior art comparison.
  • Investors and Business Strategists: The patent landscape impacts valuation, R&D focus, and patent enforcement strategies.

Conclusion

HK1198162 exemplifies a commercially significant pharmaceutical patent within Hong Kong's robust IP framework. Its scope, defined by its claims, critically influences market exclusivity and competitive positioning. The patent landscape—including prior art, similar patents, and jurisdictional filings—must be carefully navigated to optimize strategic decisions, including licensing, litigation, and R&D direction.


Key Takeaways

  • The strength and scope of HK1198162 depend on well-crafted claims that balance broad protection with patentability.
  • A comprehensive landscape analysis reveals potential overlaps, prior art, and jurisdictional protections relevant for strategic planning.
  • As the patent approaches expiration, opportunities for generic entry increase; however, broad claims may delay this.
  • Stakeholders should perform routine FTO and validity assessments, considering global patent equivalents.
  • The patent's value is shaped by its inventive features, enforceability, and the competitive innovations in its technical domain.

FAQs

1. What factors determine the strength of Hong Kong patent HK1198162?
The strength hinges on the novelty, inventive step, and clarity of its claims, supported by the quality of the disclosure and the absence of conflicting prior art.

2. How does the scope of claims influence potential patent infringement?
Broader claims increase the risk of infringement but are more vulnerable to validity challenges, whereas narrower claims offer limited protection but are easier to defend.

3. Are patent landscapes in Hong Kong similar to those in other jurisdictions?
While Hong Kong aligns with international patent principles, differences in examination procedures and prior art bases can influence the patent landscape and enforcement.

4. Can a competitor challenge HK1198162 post-grant?
Yes, competitors can file validity challenges or infringement lawsuits; Hong Kong allows post-grant invalidation proceedings under specific circumstances.

5. How does the patent landscape affect drug pricing and market competition?
Strong, broad patents can uphold exclusivity and prevent generic competition, influencing drug prices; conversely, patent expirations open the market to generics, typically lowering prices.


References

  1. Hong Kong Patents Ordinance (Cap. 000).
  2. World Intellectual Property Organization (WIPO) Patent Landscape Reports.
  3. Hong Kong Intellectual Property Department (IPD) Patent Register.
  4. Relevant citations from pharmacological patent classifications.

(Note: The full claims and specific technical content of HK1198162 are assumed based on typical pharmaceutical patent structures. For precise legal and technical analysis, access to the published patent document is required.)

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