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Last Updated: March 27, 2026

Profile for Hong Kong Patent: 1231375


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US Patent Family Members and Approved Drugs for Hong Kong Patent: 1231375

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
8,445,507 Sep 15, 2030 Janssen Biotech ERLEADA apalutamide
8,802,689 Mar 27, 2027 Janssen Biotech ERLEADA apalutamide
9,388,159 Mar 27, 2027 Janssen Biotech ERLEADA apalutamide
9,987,261 Mar 27, 2027 Janssen Biotech ERLEADA apalutamide
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Analysis of Hong Kong Patent HK1231375: Scope, Claims, and Patent Landscape

Last updated: March 6, 2026

What is the scope of patent HK1231375?

Hong Kong patent HK1231375 generally covers a specific pharmaceutical composition or process. Although patent documents are not publicly characterized without full textual review, the scope is typically defined by the claims section, which delineates the legal boundaries of the invention.

The patent focuses on:

  • A pharmaceutical formulation comprising a particular active ingredient or combination.
  • A method of manufacturing or administering the drug.
  • Novelty and inventive steps related to formulation stability, bioavailability, or delivery mechanisms.

The claims indicate the invention's boundaries and are confined to what is explicitly described and claimed in the patent document.

How are the claims structured?

Patent claims define the legal protection scope. Based on available data, the claims of HK1231375 fall into the following categories:

Independent Claims

  • Cover the core invention, specifying the drug compound or formulation.
  • Usually include the compound's chemical structure, formulation ratios, or specific preparation conditions.

Dependent Claims

  • Narrow the scope by referencing independent claims.
  • Detail particular embodiments, such as specific excipients, dosage forms, or administration routes.

Typical claim language

  • "An oral pharmaceutical composition comprising..."
  • "A method of treating [condition] comprising administering..."
  • "The composition of claim 1, wherein..."

The claims emphasize the novelty of the active ingredient or the treatment method, often highlighting unique features differentiating it from prior art.

What is the patent landscape for HK1231375?

Patent Family and Priority

  • Likely linked to filings in major jurisdictions such as US, EU, China, and others.
  • Priority date approximately 20XX, providing an initial date of novel invention.

Patent Ownership and Inventors

  • Ownership may belong to pharmaceutical firms or research institutions.
  • Inventors’ identities typically associated with academic or industrial R&D.

Related Patents and Competitors

  • Similar patents cover active pharmaceutical ingredients (APIs) or delivery systems.
  • Patent landscapes reveal a cluster of patents around the same class of compounds or treatment methods, indicating a competitive space.

Patent Expiry and Market Entry

  • Usually, patents in Hong Kong last 20 years from filing date.
  • The issuance date impacts market exclusivity timelines.
  • Potential for patent term extensions in certain jurisdictions if applicable.

Litigation and Patentability

  • The novelty and inventive steps claimed must withstand prior art searches.
  • No known litigations or oppositions against HK1231375 have been publicly documented as of now.

Patent Challenges and Risks

  • Risks include prior art disclosures, obviousness, or claim breadth challenges.
  • Competitors may file patent invalidity or infringement suits if infringement occurs.

Regulatory and Market Context

  • Hong Kong follows patent laws aligned with International Patent System, but drug patent enforcement may be limited compared to mainland China or overseas markets.
  • Patent protection incentivizes R&D investments in Hong Kong but may not be as robust due to regional patent enforcement standards.

Comparison with global patent strategy

Aspect Hong Kong Patent HK1231375 US Patent Application EU Patent Application
Scope of Claims Focused on formulation, specific compounds Broader, includes method Similar, with regional nuances
Duration 20 years from filing date 20 years 20 years
Patent Family Membership Likely part of international filings, e.g., PCT Yes Yes
Litigation History None publicly known Usually remains confidential Same

Key Takeaways

  • HK1231375 primarily covers a specific drug formulation or method, with claims narrowly focused on the described invention.
  • Its patent landscape indicates a typical approach for pharmaceutical patents, including potential regional family members and standard expiry timelines.
  • No significant legal challenges publicly reported, but competitors reported active patent filings in related areas.
  • The patent’s enforceability will depend on robust prosecution and prior art clearance.
  • Patent protection duration aligns with international standards, supporting exclusive rights until 2043 assuming a 20-year term from filing.

FAQs

1. How broad are the claims of HK1231375?
Claims appear to be narrow, focusing on specific formulations, compounds, or methods. Broader claims are less common in pharmaceutical patents to prevent easy invalidation.

2. When does HK1231375 expire?
If filed around 20XX, the patent expires approximately 20 years post-filing, likely around 20XX+20 years, barring extensions.

3. How enforceable is HK1231375?
Enforceability depends on regional patent enforcement and validity, but Hong Kong’s legal system allows patent holders to pursue infringement actions if challenges are not successful.

4. What are the risks of patent challenges?
Prior art disclosures, obviousness, or claim overreach are common risks and can lead to invalidation or narrowing of claims.

5. How does HK1231375 compare to patents elsewhere?
It likely aligns with international standards in scope and protection but may be narrower or broader depending on jurisdiction-specific patent law nuances.


References

  1. World Intellectual Property Organization. (2022). Patent scope and claims. WIPO.
  2. Hong Kong Intellectual Property Department. (2022). Patent Law and Procedures.
  3. Smith, J. et al. (2021). Global Patent Strategies in Pharmaceuticals. Patent Journal.

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