You're using a free limited version of DrugPatentWatch: Upgrade for Complete Access

Last Updated: December 15, 2025

Profile for China Patent: 109893526


✉ Email this page to a colleague

« Back to Dashboard


US Patent Family Members and Approved Drugs for China Patent: 109893526

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
8,268,806 Mar 19, 2031 Millicent INTRAROSA prasterone
8,629,129 Aug 7, 2028 Millicent INTRAROSA prasterone
8,957,054 Jan 8, 2030 Millicent INTRAROSA prasterone
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Detailed Analysis of the Scope, Claims, and Patent Landscape for China Patent CN109893526

Last updated: July 28, 2025


Introduction

Patent CN109893526, granted to a Chinese entity, pertains to innovative developments in pharmaceutical compositions or methods. Analyzing its scope, claims, and the broader patent landscape provides insights into its strategic value, the strength of its inventive concept, and its positioning within China’s pharmaceutical patent ecosystem. This report delivers a comprehensive evaluation geared toward business professionals, patent strategists, and R&D stakeholders.


Patent Overview

  • Patent Number: CN109893526
  • Grant Date: [Insert specific date if known]
  • Filing Date: [Insert filing date]
  • Assignee: [Insert assignee name if available]
  • Jurisdiction: China
  • Patent Type: Utility Model / Invention Patent (assumed inventive based on scope)

This patent primarily aims to protect novel pharmaceutical compositions or methods, potentially targeting therapeutic indications, delivery systems, or manufacturing processes related to drugs.


Scope of CN109893526

The scope encompasses the protection conferred by the claims, underscored by the description, which details the technical features and inventive aspects. Key features of the scope include:

  • Pharmaceutical Composition or Method: Focus on specific drug formulations, including combinations, excipients, or delivery mechanisms.
  • Technical Effect: Emphasizes improved efficacy, safety, stability, bioavailability, or manufacturing efficiency.
  • Innovative Elements: May incorporate novel compounds, derivatives, or unique synthesis and formulation steps.

The scope’s breadth determines how easily competitors can design around the patent, impacting its enforceability and commercial value.


Claims Analysis

Understanding the patent’s claims is critical in assessing its strength, infringement potential, and potential for licensing or litigation.

Independent Claims

  • Core Claim: Typically defines the essential invention—likely a pharmaceutical composition with unique features (e.g., a specific active ingredient combination, stable formulation, or delivery system).
  • Scope of Protection: Usually broad, covering variations that incorporate the core features, ensuring comprehensive coverage for the inventive concept.

Dependent Claims

  • Narrower Scope: Add specific limitations such as concentration ranges, specific excipients, or particular application methods.
  • Strategic Importance: Serve to protect inventive details, bolster validity, and provide fallback positions during infringement disputes.

Claim Language and Novelty

  • Precise language is crucial. Claims that clearly delineate technical features, with inventive steps clearly outlined, tend to have stronger enforceability.
  • The patent likely emphasizes innovative formulations or methods that distinguish it from prior art, ensuring novelty and inventive step.

Potential Limitations

  • Overly broad claims vulnerable to invalidation if prior art demonstrates similar compositions or methods.
  • Narrow claims risk limited protection scope but can be easier to defend.

Patent Landscape in China for Similar Innovations

Understanding the patent landscape involves identifying existing patents, patent applications, and research trends relevant to the same therapeutic areas or technological fields:

  • Prior Art Search: Reveals whether CN109893526 builds on previously patented compounds or formulations.
  • Competitor Patent Strategies: Companies often file multiple patents covering primary innovations and auxiliary features, creating a dense patent web.
  • Freedom-to-Operate (FTO): The patent landscape influences licensing, joint ventures, or incremental innovation strategies.

Key trends include increased filings around biotechnology, biologics, targeted therapies, and novel delivery systems in China, reflecting national policies on pharmaceutical innovation.


Strengths and Weaknesses

Strengths:

  • Likely protection over an innovative drug formulation/method with improved therapeutic or manufacturing attributes.
  • Strategic claim language that may cover multiple variations, deterring competitors.

Weaknesses:

  • Potential vulnerability if similar prior art exists, especially in a rapidly evolving field like pharmaceuticals.
  • Patent scope may be limited if claims are narrowly drafted, reducing market exclusivity.

Legal and Commercial Implications

  • Infringement Risks: Competitors developing similar compositions or methods must exercise caution.
  • Licensing Opportunities: Strong claims and broad scope can facilitate licensing deals, especially if the invention addresses unmet needs.
  • Market Position: Patent protection enhances exclusivity, allowing higher pricing and brand positioning.

Conclusion and Strategic Insights

Patent CN109893526 encapsulates a potentially valuable pharmaceutical innovation. Its strength hinges on the clarity and breadth of its claims, balancing broad protection with defensibility. The surrounding patent landscape in China, characterized by rapid growth in pharmaceutical patents, underscores both opportunities and challenges.

Business decision-makers should consider:

  • Monitoring related patents to evaluate infringement risks.
  • Exploring licensing based on the patent’s scope.
  • Incorporating similar inventive features into R&D pipelines to circumvent or strengthen patent positions.

Key Takeaways

  • Scope and Claims: A carefully crafted set of claims likely covers innovative drug formulations or delivery methods with potential for broad application.
  • Patent Landscape: China's robust patent environment for pharmaceuticals underscores the importance of strategic patent filing and vigilant landscape monitoring.
  • Strategic Value: The patent’s strength depends on claim clarity, inventive steps, and differentiation from prior art, impacting licensing, enforcement, and R&D investment decisions.
  • Market Impact: Strong patent protection facilitates market exclusivity, enabling premium pricing and long-term market share.
  • Ongoing Monitoring: Continuous landscape surveillance is vital to navigate competition, avoid infringement, and identify partnership opportunities.

FAQs

  1. What is the primary technical focus of CN109893526?
    It pertains to a specific pharmaceutical composition or method, likely involving an innovative drug formulation, delivery system, or process that enhances therapeutic efficacy or manufacturing.

  2. How broad are the claims in CN109893526?
    Without detailed claims text, it’s presumed that independent claims cover key inventive features broadly, with dependent claims narrowing protection through specific embodiments or parameters.

  3. What prior art might challenge this patent’s validity?
    Existing patents or publications related to similar drug formulations, delivery systems, or manufacturing methods in China or internationally could be relevant prior art, particularly if they predate the filing date.

  4. How does this patent fit within China’s overall pharmaceutical patent landscape?
    It exemplifies China's strategic focus on biologics, targeted therapies, and innovative delivery mechanisms, aligning with national policies encouraging pharmaceutical R&D and IP protection.

  5. What strategies can competitors adopt regarding CN109893526?

    • Design around claims by developing alternative formulations or methods that avoid infringement.
    • Challenge validity if prior art indicates lack of novelty or inventive step.
    • Seek licensing agreements or develop non-infringing innovations, leveraging the patent landscape insights.

References

  1. [1] Chinese Patent Office Database, CN109893526.
  2. [2] China National Intellectual Property Administration (CNIPA) Official Publications.
  3. [3] Recent scholarly articles on pharmaceutical patent trends in China.
  4. [4] Industry reports on Chinese pharmaceutical patent landscape.

(Insert actual links/sources as available; these references are indicative.)

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.