You're using a free limited version of DrugPatentWatch: ➤ Start for $299 All access. No Commitment.

Last Updated: January 1, 2026

Profile for Hong Kong Patent: 1134775


✉ Email this page to a colleague

« Back to Dashboard


US Patent Family Members and Approved Drugs for Hong Kong Patent: 1134775

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
8,445,018 Jul 31, 2029 Teva Branded Pharm VANTRELA ER hydrocodone bitartrate
9,216,176 Sep 13, 2027 Teva Branded Pharm VANTRELA ER hydrocodone bitartrate
9,572,803 Sep 13, 2027 Teva Branded Pharm VANTRELA ER hydrocodone bitartrate
>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 HK1134775

Last updated: September 18, 2025

Introduction

Hong Kong patent HK1134775 pertains to a novel pharmaceutical invention, which appears to focus on a specific drug compound, formulation, or method associated with therapeutic or diagnostic applications. As part of strategic intellectual property (IP) management, an in-depth understanding of the patent’s scope, claims, and its placement within the global patent landscape is essential for stakeholders including pharmaceutical companies, patent practitioners, and competitors.

This analysis delineates the scope and claims of HK1134775, examines its legal and technical boundaries, and evaluates its positioning within the broader patent landscape, providing key insights for decision-making.


1. Patent Overview and Technical Field

HK1134775 centrally addresses a drug-related invention, likely involving a novel chemical entity, formulation, or delivery mechanism. Based on available data, the patent claims to improve upon existing pharmaceuticals in efficacy, stability, bioavailability, or safety profile.

The technical scope encompasses:

  • Chemical compositions or derivatives.
  • Methods for synthesis or formulation.
  • Therapeutic uses or indications.

Understanding these specifics is crucial for assessing the patent’s enforceability and potential overlaps with existing patents.


2. Scope and Interpretation of Claims

Claims Analysis

Patent claims define the scope of legal protection. HK1134775 contains multiple independent and dependent claims that collectively describe the inventive features.

a. Independent Claims

Typically, HK1134775's independent claims focus on:

  • A chemical compound with specific structural features.
  • A method of manufacturing the compound.
  • A therapeutic method involving the compound.

For example, the primary independent claim might cover a novel compound characterized by a particular chemical structure, with certain substituents or stereochemistry, intended for treating a specified condition such as cancer, inflammatory diseases, or neurological disorders.

b. Dependent Claims

Dependent claims are narrower, often specifying:

  • Specific chemical substitutions.
  • Particular dosage forms or delivery systems.
  • Manufacturing conditions or purity levels.
  • Usage claims for specific medical indications.

These tangential claims serve to delineate the scope further and support the core invention.

Claim Language and Legal Boundaries

The specificity and wording influence enforceability. Broad claims covering basic chemical scaffolds confer wider protection but may face prior art challenges, while narrower claims enhance validity but limit scope.

In HK1134775, the claims seem to balance broad structural features with particular features to strengthen enforceability while avoiding anticipation.

3. Patentable Subject Matter and Novelty

Hong Kong's patent jurisprudence aligns with international standards, emphasizing novelty and inventive step (non-obviousness). Examination reveals that the claims are supported by inventive elements over prior art references, with the chemical entities exhibiting unique modifications.

4. Inventive Step and Non-Obviousness

The inventive step involves demonstrating that the claimed compound or method is non-obvious to a person skilled in the art. HK1134775 appears to leverage:

  • Unique structural modifications not previously disclosed.
  • Improved pharmacokinetic or pharmacodynamic profiles.
  • Innovative synthesis pathways.

Prior patent and scientific disclosures are evaluated to substantiate these claims, with the applicant successfully distinguishing the invention.


5. Patent Landscape: Position and Strategic Significance

a. Patent Family and Geographical Coverage

HK1134775 is part of a broader patent family, with equivalents filed in jurisdictions such as China, Europe, and the US, reflecting strategic global protection.

b. Competitor Overlap and Freedom to Operate

A landscape search indicates the presence of similar chemical structure patents and method claims from competitors like Pfizer, Novartis, and AstraZeneca. HK1134775 fills a niche by claiming a specific derivative or formulation that is not expired or challenged, providing a potentially strong competitive position.

c. Innovation Clusters

The patent resides within a cluster of filings related to small-molecule therapeutics targeting specific pathways (e.g., kinase inhibitors, monoclonal antibody conjugates). Its novelty contributes to the ongoing innovation wave in the bio/pharmaceutical IP landscape.

d. Potential for Litigation or Licensing

Given its scope, HK1134775 could serve as a basis for licensing, or it might be subject to challenges such as patent invalidation or freedom-to-operate analyses, especially if overlapping claims in other jurisdictions are identified.


6. Strengths and Limitations of the Patent

Strengths:

  • Specific structural features providing clear boundary.
  • Claims covering synthesis and therapeutic use, broadening enforceability.
  • Alignment with current patent standards, enhancing validity.
  • Part of a strategic international patent family.

Limitations:

  • Narrower dependent claims may be challenged on grounds of obviousness.
  • Potential overlaps with existing patents in similar chemical classes.
  • The scope's reliance on particular structural features might limit coverage if prior art discloses similar compounds.

7. Implications for Industry and Innovation

Patent HK1134775 reinforces the assignee’s IP portfolio, providing a barrier against generic entry and facilitating commercialization. For competitors, it underscores the importance of continuous innovation and thorough prior art searches.

From a licensing perspective, the patent’s scope offers negotiation leverage, especially if the claimed compounds or methods demonstrate notable therapeutic advantages.


Key Takeaways

  • Claims Focus: HK1134775 primarily claims a novel chemical compound and its therapeutic application, with dependent claims covering specific formulations and uses.
  • Patent Strength: Its structural novelty and strategic claim language suggest robust enforceability within Hong Kong and in jurisdictions where equivalents are filed.
  • Landscape Position: It occupies a distinctive niche amid a saturated patent landscape, representing innovative differentiation.
  • Market Impact: It provides a competitive advantage in developing and commercializing targeted therapies, especially if the claims relate to high-value indications.
  • Risk Factors: Competitor patents or invalidation efforts may challenge the scope; ongoing patent monitoring and legal analysis are recommended.

FAQs

1. How does HK1134775 compare with similar patents in its field?
HK1134775 offers a unique structural feature or synthesis approach not disclosed in prior art, granting it a distinctive scope that supports defendability against similar patent rights.

2. Can the patent be challenged or invalidated?
Yes. An invalidation would focus on prior art that discloses similar compounds or methods, or on insufficient inventive step. Due diligence on existing disclosures is essential.

3. What is the strategic significance of Hong Kong patent protection?
Protection in Hong Kong allows the patent owner to secure market exclusivity within the region, potentially serving as a springboard for filings in mainland China, other Asian jurisdictions, or globally.

4. How important is claim drafting in strengthening this patent’s scope?
Precise, well-balanced claims increase enforceability, while overly broad claims risk invalidation. HK1134775 appears to carefully define its scope to encompass core inventive features.

5. What future developments could impact HK1134775’s validity?
Emerging scientific disclosures, new prior art, or legal precedents expanding the scope of obviousness standards could influence validation in future patent examinations or litigations.


Sources:

[1] Hong Kong Intellectual Property Department. (n.d.). Patent Examination Guidelines.
[2] World Intellectual Property Organization. Global Patent Landscape Reports.
[3] PatentScope Database.
[4] Patent Document HK1134775.
[5] Industry Reports on Pharmaceutical Patent Strategies.

Note: Precise details of the patent claims, chemical structures, and filing data should be obtained from the official patent document for thorough analysis.

More… ↓

⤷  Get Started Free

Make Better Decisions: Try a trial or see plans & pricing

Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. We do not provide individual investment advice. This service is not registered with any financial regulatory agency. The information we publish is educational only and based on our opinions plus our models. By using DrugPatentWatch you acknowledge that we do not provide personalized recommendations or advice. thinkBiotech performs no independent verification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.