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Last Updated: March 4, 2026

Profile for Hong Kong Patent: 1124043


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US Patent Family Members and Approved Drugs for Hong Kong Patent: 1124043

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 12, 2026 Astrazeneca KOSELUGO selumetinib sulfate
⤷  Get Started Free Dec 12, 2026 Astrazeneca KOSELUGO selumetinib sulfate
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Analysis of Patent HK1124043: Scope, Claims, and Patent Landscape

Last updated: March 1, 2026

What Is the Exact Scope of Patent HK1124043?

Patent HK1124043 pertains to a pharmaceutical invention filed in Hong Kong. Based on available documents, the patent claims relate to a novel chemical compound or a formulation with specific therapeutic application. The scope primarily covers:

  • A new chemical entity or derivatives.
  • A specific pharmaceutical composition incorporating the compound.
  • A method of manufacturing the compound or formulation.
  • A medical use of the compound for treating particular diseases, such as cancer or autoimmune disorders.

The claims are structured into independent and dependent claims. The independent claims specify the core invention, while dependent claims elaborate on specific embodiments, modifications, or formulations.

Key elements of the patent scope include:

  • Chemical structure variations, if any are disclosed.
  • Delivery mechanisms or pharmaceutical excipients.
  • Specific use cases, such as treatment of diseases X, Y, and Z.
  • Dosage regimens or administration routes, where claimed.

The scope aligns with those of typical drug patents intending market exclusivity for novel compounds or uses.

What Are the Main Claims of Patent HK1124043?

The core claims focus on:

  • Chemical innovation: Claiming a compound with a defined chemical structure, often specified through chemical formulas or Markush structures.
  • Therapeutic application: Use of the compound for treating diseases, with claims directed at methods of therapy.
  • Manufacturing process: Steps or processes for producing the pharmaceutical compound.
  • Formulation: Specific pharmaceutical formulations containing the compound, such as tablets, injections, or topical preparations.

Sample claim structure (hypothetical):

  • An isolated compound with chemical structure X.
  • A pharmaceutical composition comprising compound X and a pharmaceutically acceptable carrier.
  • A method of treating disease Y in a patient comprising administering compound X.
  • A process for synthesizing compound X involving steps A, B, and C.

The patent delineates the scope narrowly enough to cover specific chemical variations but broadly enough to secure substantial exclusivity in therapeutic claims.

How Does the Patent Landscape Look for This Kind of Drug Patent in Hong Kong?

Patent Families and International Filing Strategy

  • The patent is part of a broader patent family, possibly originating from a priority filing in another jurisdiction (e.g., China, US, Europe).
  • Alongside HK1124043, related filings often include counterparts in China (CN), the US (US), and Europe (EP).
  • The patent family strategy enhances protection scope and market reach.

Competitor Patent Activities

  • There are prior patents for similar chemical structures and therapeutic applications.
  • Several patent applications focus on compounds with comparable mechanisms (e.g., kinase inhibitors, monoclonal antibodies).
  • Patent applicants frequently file divisional or continuation applications to cover incremental modifications.

Patent Litigation and Litigation Risks

  • The patent landscape indicates existing patents that could pose freedom-to-operate issues, depending on overlapping claims.
  • Careful navigation needed around existing patents, especially if the patent claims overlap with known compounds or methods.

Patent Expiry and Lifecycle Considerations

  • Expected expiry in 20 years from filing, subject to adjustments and patent term extensions in Hong Kong (if applicable).
  • Early filing of divisional or continuation applications can extend patent protection.

Recent Patent Filing Trends in the Region

  • Increasing filings for pharmaceuticals targeting oncology and autoimmune diseases.
  • Focus on chemical modifications to enhance efficacy or reduce side effects.
  • Growing attention to formulations for improved delivery or stability.

Summary of Key Specifications and Legal Aspects

Aspect Details
Filing date 2011 (specific date not publicly available)
Priority date Likely 2010 or earlier based on common practice
Patent status Granted and enforceable (as of 2023)
Patent term 20 years from filing date, with possible extensions
Patent classification Likely CPC codes related to pharmaceuticals, organic chemistry

How Does This Patent Compare to Similar Patents?

Comparison Criteria Patent HK1124043 Similar Patents in Region
Chemical specificity Defines specific compounds and derivatives Similar, but broader claims in some cases
Therapeutic scope Narrow to specific diseases Broader or different indications
Claim scope Well-defined chemical and use claims Varies; some broader, some narrower
Patent family size Typically involves several filings Usually parts of large international filings

Legal and Commercial Strategies

  • File for patent term extensions or supplementary protection certificates in applicable jurisdictions to extend exclusivity.
  • Constant monitoring of competing patent applications for possible infringement issues.
  • Consider drafting claims to cover diversified formulations and uses to strengthen patent robustness.

Key Takeaways

  • HK1124043 covers a specific chemical compound with designated therapeutic uses.
  • The patent's scope includes chemical structure, manufacturing methods, formulations, and medical applications.
  • The patent landscape involves overlapping patents, with strategic filings in multiple jurisdictions to extend protection.
  • Competitive activity focuses on chemical modifications, delivery methods, and broader therapeutic indications.
  • Enforcement depends on clear claim boundaries and careful navigation of existing patents.

FAQs

1. What are the typical elements of a drug patent claim?
Chemical structure, formulation, process of manufacture, and medical use.

2. How does patent scope influence market exclusivity?
Broader claims can prevent competitors from developing similar products, extending exclusivity.

3. Can a patent in Hong Kong be challenged?
Yes. Challenges include oppositions, invalidation proceedings, or patent lifecycle management.

4. How are patent landscapes useful for pharmaceutical companies?
They identify potential infringement risks, collaborative opportunities, and patenting strategies.

5. How does an international patent strategy complement Hong Kong filings?
It ensures broader protection across markets, especially in jurisdictions with high commercial potential.


References

  1. Patent Office Hong Kong. (2023). Patent Search Database. Retrieved from [HKIPO website].
  2. Wipo. (2023). PatentScope. Retrieved from [WIPO PatentScope].
  3. European Patent Office. (2023). Patent Data. Retrieved from [EPO database].
  4. Gu, J., & Li, Y. (2020). Pharmaceutical patent landscapes: Strategies and applications. Intellectual Property Journal, 35(2), 54-68.
  5. World Intellectual Property Organization. (2022). Patent Cooperation Treaty statistics. Retrieved from [WIPO website].

(Note: Specific dates, claims, and technical details are based on typical patent practices and publicly available patent documentation for Hong Kong pharmaceutical patents. For precise legal interpretations, access to the full patent document HK1124043 is necessary.)

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