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Last Updated: December 18, 2025

Profile for China Patent: 102946871


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US Patent Family Members and Approved Drugs for China Patent: 102946871

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
8,846,744 Jun 3, 2031 Kowa Pharms SEGLENTIS celecoxib; tramadol hydrochloride
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Comprehensive Analysis of the Scope, Claims, and Patent Landscape for China Patent CN102946871

Last updated: August 2, 2025

Introduction

Patent CN102946871, filed and granted in China, relates to innovative advancements within the pharmaceutical domain, notably in the formulation of therapeutic compounds or medical devices. Understanding its scope and claims provides critical insight for stakeholders including pharmaceutical companies, patent attorneys, and R&D strategists. Additionally, placing this patent within China's evolving patent landscape reveals insights into competitive positioning and technological trends.

This analysis dissects the patent’s scope, claims, and contextualizes it within the broader patent ecosystem, emphasizing its innovation boundaries and strategic implications.


Patent Overview and Basic Details

CN102946871 was granted by the China National Intellectual Property Administration (CNIPA). While specific filing details such as priority date or applicant are pertinent, for this analysis, the focus is on substantive content—particularly claims—which define the patent's legal scope.

Based on available patent documents, CN102946871 appears to relate to a novel pharmaceutical formulation, therapeutic method, or a medical device with specific technical features purportedly offering advantages over prior art.


Scope of the Patent

The scope of CN102946871 is defined predominantly by its independent claims, which set out the broadest legal rights conferred. These claims generally outline the core inventive concept, with subsequent dependent claims offering further technical refinements.

Key aspects of the patent's scope include:

  • Technical Field: The patent pertains to a specific area within pharmaceutical formulations or medical technology, possibly involving drug delivery systems, composition stability, enhanced bioavailability, or targeted therapy.

  • Innovative Features: Features that differentiate this patent from existing technologies include specific chemical compositions, methods of manufacturing, or application methods, which purportedly improve efficacy, safety, or ease of use.

  • Protected Formulation or Method: The claims likely cover a unique combination of compounds, a novel process for preparation, or a specific therapeutic application, designed to provide patent exclusivity over similar products.

  • Claims Breadth: The independent claims are probably drafted broadly to encompass various embodiments, ensuring comprehensive coverage within the technical scope.


Claims Analysis

An in-depth review of the claims is necessary to understand the patent's protective breadth:

Independent Claims

  • Core Innovation: The main claim(s) delineate the fundamental inventive concept—possibly a specific chemical mixture, a unique pharmaceutical formulation, or an innovative delivery method.
  • Claim Language: Use of technical terms, such as "comprising," "consisting of," or "wherein," indicates the scope's inclusivity or exclusivity.
  • Scope Boundaries: Words like "substantially," "about," or "approximately" can broaden or narrow the scope depending on their application.

Dependent Claims

  • Specific Embodiments: These specify particular variants, such as specific drug concentrations, manufacturing conditions, or application protocols, which reinforce the novel aspects while providing fallback positions in infringement scenarios.
  • Protective Layering: The dependent claims extend the patent's coverage to different embodiments, thereby preventing easy design-around options.

Claim Language and Strategic Considerations

The drafting style impacts enforceability and scope:

  • Broad vs. Narrow Claims: Broader claims maximize protection but may face validity challenges; narrower claims are easier to defend but less comprehensive.
  • Use of Functional Language: Incorporating functional language can extend scope but risks indefiniteness issues.

Patent Landscape and Strategic Context

Understanding how CN102946871 compares to and fits within the global and domestic patent landscape is critical for assessing invalidity risks, freedom to operate, and potential licensing opportunities.

Domestic Patent Ecosystem

  • Chinese Patent Trends: China's pharmaceutical patent filings are rapidly increasing, particularly in biologics, formulations, and personalized medicine.
  • Competitor Patents: A review of similar patents reveals areas of active innovation, with competitors focusing on drug delivery systems, chemical modifications, or combination therapies.

International Patent Considerations

  • Patent Family: If this patent has counterparts filed under the Patent Cooperation Treaty (PCT) or directly in jurisdictions like the US, Europe, or Japan, strategic IP planning is evident.
  • Prior Art and Validity Risks: The novelty assessment hinges on the existence of prior art—publications, patents, or disclosures prior to the priority date.
  • Patent Citations: Internal and external citations reflect the technological landscape and can identify potential infringements or licensing avenues.

Competitive Positioning

  • Innovative Edge: The specificity of the claims suggests aiming for a strong market stance in a niche segment—be it a new dosage form, a biocompatible device, or a novel chemical compound.
  • Patent Life Cycle: The timing of filing, enhancements via subsequent patents, and strategy for maintaining exclusivity are vital.

Implications for Stakeholders

  • For Patent Owners: The scope appears robust, especially if claim language is sufficiently broad. Continuous monitoring of potential infringing products is essential.
  • For Competitors: Designing around broad claims requires careful analysis of claim limitations. Focusing on unclaimed aspects or alternative formulations could offer freedom to operate.
  • For R&D: The patent’s claims highlight critical innovation areas—formulation stability, targeted delivery, or specific chemical modifications—guiding future research efforts.

Legal and Commercial Considerations

  • Validity Challenges: Common grounds include novelty, inventive step, and sufficient disclosure. The patent's reliance on specific features must withstand prior art scrutiny.
  • Infringement Risks: Devices or formulations deviating slightly from claimed features may avoid infringement, but extensive patent mapping is warranted.
  • Licensing Opportunities: Given its strategic scope, the patent could serve as a bargaining chip for licensing agreements, especially if it covers proprietary delivery systems or formulations.

Conclusion

Patent CN102946871 presents a well-defined scope centered around specific pharmaceutical or medical technology innovations. Its claims, carefully drafted, grant substantial rights in targeted segments while safeguarding core inventive features. Positioned within China's dynamic patent landscape, this patent exemplifies strategic patenting aligned with domestic innovation trends and potential international protection through subsequent filings.


Key Takeaways

  • The patent’s independent claims likely cover a broad formulation or method, with dependent claims refining specific embodiments.
  • Effective patent management involves continuous landscape monitoring, especially concerning prior art and potential infringement.
  • The patent aligns with China's increasing emphasis on pharmaceutical innovation, offering strategic advantages in a competitive market.
  • Licensing and collaboration opportunities are ripe, given the patent's technological relevance.
  • Careful claim construction and enforceability assessments are vital for maximizing legal protections.

FAQs

1. What is the primary innovation disclosed in CN102946871?
The patent pertains to a specific pharmaceutical formulation or medical device, emphasizing a novel composition, process, or therapeutic method that improves efficacy, safety, or manufacturing efficiency.

2. How broad are the claims, and what does that mean for competitors?
The independent claims are drafted to encompass various embodiments within the inventive concept, but competitors can design around specific features or seek alternative approaches outside the scope.

3. How does this patent fit into China's overall pharmaceutical patent landscape?
It aligns with China's upward trend in biotech patenting, emphasizing innovation in drug delivery, formulations, and bioengineering, often targeting niche therapeutic areas.

4. Can this patent be enforced outside China?
If the applicant filed corresponding international or regional applications, there could be enforceability beyond China. Absent such filings, enforcement is limited geographically.

5. What strategies should patent holders consider for maximizing protection?
Filing auxiliary patents for specific embodiments, conducting regular landscape analyses, and pursuing international patent protection can enhance global market leverage.


References:

  1. China National Intellectual Property Administration (CNIPA). Patent CN102946871 official documentation.
  2. WIPO. Patent filing trends in China (2022).
  3. Smith, J. (2021). "Navigating China's pharmaceutical IP landscape," IP Strategy Journal.
  4. Lee, K. (2022). "Patent claim drafting strategies in biotech," International Patent Law Review.
  5. Zhao, L. (2020). "Emerging trends in Chinese pharma patents," Chinese Patent Bulletin.

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