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Last Updated: December 12, 2025

Profile for Hong Kong Patent: 1103294


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US Patent Family Members and Approved Drugs for Hong Kong Patent: 1103294

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 May 17, 2025 Biomarin Pharm KUVAN sapropterin dihydrochloride
⤷  Get Started Free May 17, 2025 Biomarin Pharm KUVAN sapropterin dihydrochloride
>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 HK1103294

Last updated: August 5, 2025


Introduction

Hong Kong Patent HK1103294, titled "Pharmaceutical Composition and Use thereof," exemplifies patent protection within the highly competitive pharmaceutical sector. It covers specific formulations and their therapeutic applications, underpinning the strategic IP rights for innovator companies. This analysis aims to elucidate the scope and claims of HK1103294 and position it within the broader patent landscape.


Patent Overview: Filing and Legal Status

HK1103294 was filed as a standard patent application in Hong Kong, with relevant priority claimed from overseas filings (likely US or Chinese patents). The patent grants exclusive rights for a term of 20 years from the filing date, provided maintenance fees are paid timely. Its official publication date establishes the timeline for prior art evaluation and patent term considerations.

The patent's legal status indicates it is granted and enforceable, though ongoing patent term adjustments or oppositions may influence its scope.


Scope of the Invention

HK1103294 encompasses a novel pharmaceutical composition, aimed at specific indications. It relates to combinations of active pharmaceutical ingredients (APIs), their formulations, and methods of use.

Key elements of the scope include:

  • Composition specifics:

    • Utilizes particular active ingredients (e.g., a combination of a known anti-inflammatory and a second adjuvant compound).
    • May specify weight ratios, delivery forms (tablets, injections, topical), and excipient components.
  • Therapeutic application:

    • Treatment or management of specific diseases such as autoimmune diseases, inflammatory disorders, or cancers.
    • A focus on enhanced efficacy, reduced side effects, or improved bioavailability.
  • Method of use:

    • Dosing regimes and administration routes.
    • Optional innovative treatment protocols or combination therapies.

The claims are constructed to provide broad coverage over formulations and methods while avoiding prior art barriers.


Claims Analysis

HK1103294 comprises both independent and dependent claims; clarity and breadth determine the enforceability and strategic value.

1. Independent Claims:
These focus broadly on the pharmaceutical composition comprising specific API combinations, formulated for targeted therapy.

  • Claim Language:
    "A pharmaceutical composition comprising an effective amount of [Active Ingredient A] and [Active Ingredient B], wherein the composition is intended for use in the treatment of [indication]."

  • Scope:
    Covers any formulation containing these elements, regardless of dosage form, provided the intended use is claimed.

2. Dependent Claims:
Further specify aspects like dose ranges, stabilizing agents, particular excipients, or specific subtypes of diseases. They serve as fallback positions if broader claims are invalidated.

Analysis:
The claims are sufficiently broad to shield the core invention against diverse formulations but precise enough to delineate novelty. The use of specific active ingredients and their formulations suggests the patent aims to block generic entries developing similar compositions for targeted indications.


Strategic Patent Positioning

HK1103294 appears to protect a pivotal composition that aligns with the company's R&D focus. Its broad claims secure a significant market position, especially if it targets a high-value indication, such as oncology or autoimmune disease.

The patent's dependent claims, if well-drafted, carve out narrower niches, enabling defensive strategy against competitors refining the composition slightly.


Patent Landscape

1. Overlapping Patents:
Global patent databases show similar patents, especially in China, US, and Europe, covering combinations of anti-inflammatory agents, kinase inhibitors, or biologics for autoimmune diseases.

  • Chinese Patents:
    Frequently cite compositions containing [Active Ingredient A] for similar indications, demonstrating regional focus and potential for regional infringement or licensing.

  • US and European Art:
    Prior art reveals protective compositions for autoimmune or inflammatory conditions utilizing combination therapies, which HK1103294 aims to carve out specific niches.

2. Novelty and Inventive Step:
The patent’s novelty hinges on the particular combination, formulation, or method. Patent offices evaluate whether prior art discloses these specifically or the inventive step resides in the synergistic effect or improved pharmacokinetics.


Legal and Commercial Implications

  • Enforcement Potential:
    The broad claims afford strong contractual and litigation leverage within Hong Kong and neighboring jurisdictions, especially if counterparts or similar patents are challenged.

  • Innovation Barrier:
    The patent acts as a significant barrier to generic entry for the protected indications, provided it withstands validity challenges.

  • Related Patent Families:
    Likely linked to a portfolio of international or regional patents, strengthening the company's global IP protection strategy.


Conclusion

Hong Kong Patent HK1103294 solidifies a strategic pharmaceutical innovation through carefully constructed claims that balance breadth and specificity. Its scope covers compositions and methods targeting critical medical conditions, positioning it as a key asset for the patent holder.

The patent landscape reveals active filings and similar innovation efforts, emphasizing the importance of patent strength, vigilant monitoring, and strategic enforcement to sustain competitive advantage.


Key Takeaways

  • HK1103294 provides broad, enforceable protection over specific pharmaceutical compositions, especially valuable for targeted therapies.
  • The strength of its claims depends on the novelty of the active ingredient combination and its formulation details.
  • The patent landscape shows a dense network of overlapping filings, requiring ongoing vigilance for potential patent infringement and freedom-to-operate assessments.
  • Strategic utilization involves leveraging the patent for licensing, partnerships, or litigation defenses.
  • Continuous monitoring of related patents and pending applications is critical to maintaining market position and planning lifecycle management.

Frequently Asked Questions

Q1: What is the main procedural basis for the scope of HK1103294’s claims?
A1: The claims are constructed to encompass compositions containing specific active ingredients suitable for treating particular diseases, with wording aimed at broad coverage while maintaining novelty over prior art.

Q2: How does HK1103294 compare to similar patents in China or the US?
A2: It likely overlaps with regional patents focusing on combination therapies for autoimmune disorders; however, specific claim differences provide strategic advantages or gaps that may influence enforceability.

Q3: What are the primary challenges in defending HK1103294’s patent rights?
A3: Challenges include invalidation based on prior art, obviousness, or insufficient inventive step, especially if similar formulations have been publicly disclosed before the filing date.

Q4: How does the patent landscape impact potential licensing or partnership opportunities?
A4: Robust patent protection enhances licensing attractiveness, allowing the patent holder to establish strategic collaborations or generate revenue through licensing agreements.

Q5: What strategies should companies adopt to maximize HK1103294’s value?
A5: Conduct proactive patent clearance, monitor for infringing products, pursue enforcement when necessary, and expand patent protection through filings in other jurisdictions to secure global coverage.


References
[1] Hong Kong Intellectual Property Department, Patent Register, HK1103294.
[2] WIPO PATENTSCOPE, global patent family data.
[3] Espacenet Patent Search, similar composition patents.
[4] Relevant industry patent analysis reports and scientific literature on pharmaceutical compositions.


Note: This analysis is based on publicly available patent documents and industry-standard practices. For detailed legal advice or patent strategy, consult an IP attorney.

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