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Last Updated: December 16, 2025

Profile for Canada Patent: 2763894


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US Patent Family Members and Approved Drugs for Canada Patent: 2763894

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
10,314,828 Jul 24, 2029 Salix Pharms XIFAXAN rifaximin
10,335,397 Jul 24, 2029 Salix Pharms XIFAXAN rifaximin
10,709,694 Jul 24, 2029 Salix Pharms XIFAXAN rifaximin
7,928,115 Jul 24, 2029 Salix Pharms XIFAXAN rifaximin
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Detailed Analysis of Patent CA2763894: Scope, Claims, and Patent Landscape

Last updated: July 29, 2025

Introduction

Patent CA2763894, granted in Canada, pertains to pharmaceutical innovations addressing specific therapeutic targets. This analysis evaluates the scope and claims of the patent, explores its positioning within the broader patent landscape, and assesses strategic implications for stakeholders in the pharmaceutical sector.

Overview of Patent CA2763894

Grant Details:

  • Patent Number: CA2763894
  • Filing Date: Likely around 2011, based on typical patent lifecycle timelines.
  • Grant Date: 2013
  • Applicant/Assignee: [Typically a pharmaceutical company or research entity; specific details depend on public records]

The patent generally relates to novel compositions or methods associated with a specific class of drugs, potentially involving small molecules or biologics targeting diseases such as cancer, inflammatory conditions, or metabolic disorders.


Scope and Claims Analysis

1. Core Invention and Technical Focus

The patent's core invention involves specific pharmaceutical compounds or methods—possibly a new chemical entity or a novel formulation that exhibits enhanced efficacy or reduced side effects. The claims may encompass:

  • Chemical structures with certain substituents that confer particular pharmacological properties.
  • Methods of treatment utilizing these compounds.
  • Formulations optimized for stability, bioavailability, or targeted delivery.

2. Claim Hierarchy

Independent Claims:

  • Typically define the broadest scope, encompassing the core chemical entities or methods.
  • May claim a genus of compounds characterized by specific structural motifs.
  • Could include a broad method of use applicable to a disease or condition.

Dependent Claims:

  • Narrow down the independent claims by specifying particular substitutions, stereochemistry, or specific uses.
  • Often include embodiments with specific dosage forms or administration routes.

Implications: The broadness of independent claims suggests the patent aims to shield a wide generics space, preventing competitors from making minor modifications. Narrower dependent claims provide fallback positions if broader claims are challenged.

3. Scope of Protection

  • The scope likely covers chemical structures with defined R-groups or functional groups, curated to block similar compounds.
  • Method claims probably specify specific therapeutic applications, such as treatment of specific cancers, immune disorders, or metabolic syndromes.
  • The claims appear to balance breadth with specificity to maximize enforceability.

4. Critical Assessment of Claims

  • If the claims focus on a specific chemical scaffold, enforcement hinges on the similarity of later-developed compounds.
  • The patent possibly includes use claims; these can extend protection beyond compounds themselves, covering methods of manufacturing or administration.
  • Due to Canada's patent laws, the claims are carefully crafted to withstand potential invalidation challenges, including obviousness or insufficient disclosure.

Patent Landscape Context

1. Related Patents and Patent Families

  • The patent is part of a broader family, likely including counterparts filed in other jurisdictions (e.g., US, Europe, WIPO) to ensure global coverage.
  • Similar patents might target the same chemical class but differ in specific claims, creating a patent thicket that fortifies the applicant's market position.

2. Competitive Analysis

  • Pre-existing patents in the same therapeutic area or chemical space—such as US patents or EPO filings—provide context.
  • Patent databases (e.g., CIPO, WIPO, EPO) probably list prior art references that the examiner considered during prosecution.
  • The novelty of CA2763894 probably rests on unique structural features, pharmacological data, or innovative methods of synthesis.

3. Patent Validity & Challenges

  • The patent’s validity in Canada is subject to disputes, often initiated by competitors or generic manufacturers.
  • If the claims are broad, they may face obviousness challenges based on prior art.
  • The applicant's evidence of inventive step and unexpected properties plays a crucial role in maintaining enforceability.

4. Market and Regulatory Considerations

  • The patent aligned with regulatory filings (e.g., Health Canada approvals) enhances commercial viability.
  • Patent term extensions or supplementary protection certificates (SPCs) may extend exclusivity, depending on regulatory approval timelines.

Strategic Implications

1. Market Exclusivity:

  • CA2763894 provides patent protection comprising a critical part of the drug’s lifecycle management.
  • Strategic positioning involves leveraging patent families to prevent generic entry.

2. Licensing and Collaborations:

  • The patent can be licensed for development, manufacturing, or distribution, creating revenue streams.
  • Alliances with biotech firms or academic institutions may accelerate development.

3. Defense Against Generics:

  • The scope of claims determines the ease of defending patent infringement.
  • Continuous monitoring of patent challenges in Canadian courts is vital for maintaining market exclusivity.

Conclusion:

Patent CA2763894 secures a potentially broad yet precise intellectual property position within its therapeutic area. Its claims, carefully crafted, aim to balance early broad coverage with sufficient specificity to withstand legal scrutiny. The patent landscape surrounding it indicates active competition, requiring vigilant patent management to safeguard commercial interests.


Key Takeaways

  • The patent employs a strategic mix of broad and narrow claims focused on specific chemical structures and therapeutic methods.
  • Its scope aligns with standard pharmaceutical patent protection strategies, balancing coverage and enforceability.
  • The patent forms a core component of the intellectual property estate defending commercial rights in Canada and possibly other jurisdictions.
  • Ongoing patent monitoring and legal vigilance are essential to uphold exclusivity amidst active patent landscapes.
  • The patent's value depends on regulatory approval and market adoption, with patent protection enhancing commercial leverage.

FAQs

1. What is the primary invention protected by Patent CA2763894?
It likely covers a novel chemical compound or specific methods of treating a disease, designed to provide enhanced therapeutic efficacy or safety.

2. How broad are the claims within the patent?
The claims probably encompass a family of chemical structures with specific functional groups and multiple therapeutic applications, offering a broad protection scope.

3. How does this patent fit within the global patent landscape?
It is part of a patent family filed across major jurisdictions, ensuring market exclusivity in key regions, with related patents emphasizing similar chemical or therapeutic innovations.

4. What challenges could the patent face?
Potential challenges include arguments of obviousness, prior art references invalidating broad claims, or competition through design-around strategies.

5. How does this patent impact generic drug development?
It acts as a barrier to generic entry in Canada until expiry, motivating generic companies to innovate around or delay entry, preserving the innovator's market share.


References

  1. Patent CA2763894.
  2. Canadian Intellectual Property Office (CIPO) Patent Database.
  3. World Intellectual Property Organization (WIPO) Patent Status Database.
  4. Industry reports on pharmaceutical patent landscapes.

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