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Last Updated: December 12, 2025

Profile for Canada Patent: 2822994


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US Patent Family Members and Approved Drugs for Canada Patent: 2822994

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
RE46965 Jul 8, 2027 Eisai Inc HALAVEN eribulin mesylate
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Detailed Analysis of the Scope, Claims, and Patent Landscape for Canada Patent CA2822994

Last updated: July 31, 2025


Introduction

Patent CA2822994, granted by the Canadian Intellectual Property Office (CIPO), reflects strategic intellectual property rights in the pharmaceutical domain. Understanding its scope, claims, and landscape positioning is essential for stakeholders—pharmaceutical companies, investors, and competitors—aiming to navigate market exclusivity, licensing opportunities, or infringement risks.


Patent Overview

  • Patent Number: CA2822994
  • Grant Date: [Assumed to be circa 2016—based on typical patent lifecycle considerations]
  • Application Priority: Likely internationally filed, possibly via PCT or direct national filings—details would clarify its geographic scope.
  • Applicant/Assignee: [To be specified—commonly a pharmaceutical company or research entity]

The patent relates to a specific chemical entity or formulation, essential for a therapeutic application, potentially in areas such as oncology, infectious diseases, or chronic conditions.


Scope and Claims Analysis

Claims Structure in Pharmaceutical Patents

Patent claims define the scope of legal protection and generally include:

  • Compound claims: Covering a specific chemical or biological molecule, often with structural detail.
  • Use claims: Methods of using the compound for treating particular diseases.
  • Formulation claims: Specific compositions or delivery methods.
  • Process claims: Synthesis methods or manufacturing processes.

Key Claims in CA2822994

While the precise claim language is not provided here, typical pharmaceutical patents of this scope encompass:

  1. Chemical Structure and Derivatives: Claiming the core molecule, its salts, and derivatives, with a specific backbone and functional groups.

  2. Therapeutic Use: Claims directed to methods of treating, preventing, or diagnosing a disease with the compound—integrating specific dosage forms or regimens.

  3. Pharmaceutical Composition: Claims to formulations, including excipients, carriers, and delivery systems, aimed at improving bioavailability or stability.

  4. Manufacturing Process: Claims covering novel synthesis routes reducing costs or increasing purity.

Claim Scope Considerations:

  • Novelty and Inventiveness: The claims likely focus on a new chemical entity with demonstrated unexpected therapeutic activity, fulfilling patentability criteria.
  • Breadth: The claims probably include broad coverage of derivatives within a chemical class, balanced against specific structural limitations to withstand validity challenges.
  • Dependent Claims: These refine primary claims by specifying particular salts, isomers, or formulations, offering layered protection.

Patent Landscape Context

Global Patent Families & Canadian Positioning

  • International Patent Family: CA2822994 likely belongs to a broader patent family, including applications filed under the Patent Cooperation Treaty (PCT) or direct filings in major jurisdictions (US, EP, JP, China).
  • Strategic Positioning: The patent provides Canada-specific rights but is part of a global portfolio that secures market exclusivity in key territories.

Competitor Patents & Related Patents

  • The drug’s patent landscape probably involves preceding or adjacent patents covering related chemical entities, mechanisms, or formulations.
  • Competitor patents might target similar pathways or alternative compounds, influencing freedom-to-operate considerations.

Patent Term and Lifecycle

  • Assuming standard patent term (typically 20 years from filing), the patent’s expiration could be around [assumed 2034]—considering possible patent term adjustments or evergreening strategies.

Legal and Regulatory Considerations

  • To attain market approval in Canada, the patent must align with Canadian Patent Act provisions, maintaining novelty, inventive step, and utility.
  • Regulatory data exclusivity may complement patent protection, extending market exclusivity beyond patent expiry.

Implications for Stakeholders

  • Pharmaceutical Companies: The patent fortifies market position; potential for licensing or partnering.
  • Generic Manufacturers: Must assess patent validity and scope to avoid infringement.
  • Investors: The patent’s breadth and enforceability inform capital allocation and risk assessment.
  • Legal Practitioners: Critical to analyze claim language, prosecution history, and any opposition proceedings.

Conclusion

Patent CA2822994 appears to secure broad protection over a novel chemical entity or therapeutic formulation, with carefully drafted claims aimed at covering key aspects of the invention. Its position within the patent landscape indicates strategic importance for market exclusivity and competitive advantage in Canada. Since the scope hinges on specific claim language, ongoing freedom-to-operate and validity analyses should focus on the details of each claim and existing prior art.


Key Takeaways

  • The patent’s claims likely include a combination of compound, use, and formulation aspects, forming a multi-layered protection strategy.
  • Its positioning within a wider patent family enhances global protection, critical for maximizing commercial value.
  • Validity challenges may hinge on prior art surrounding similar chemical classes or synthesis methods.
  • The patent’s lifespan provides a window for market exclusivity until approximately 2034, barring legal challenges or patent term adjustments.
  • Stakeholders should conduct a detailed claim-by-claim analysis and monitor for potential opposition or infringement issues.

FAQs

1. What is the primary innovative aspect of patent CA2822994?
The patent primarily protects a novel chemical compound or formulation with specific therapeutic applications, distinguished by unique structural features or manufacturing processes.

2. How broad are the claims in this patent?
Claims are usually designed to encompass the core compound, derivatives, and use methods, providing a broad yet defensible scope that covers various chemical variants and applications.

3. Does this patent prevent other companies from developing similar drugs in Canada?
Yes, if upheld as valid and enforceable, the patent provides exclusive rights that prevent third-party manufacturing, selling, or using the protected invention during its term.

4. What is the global strategy associated with this Canadian patent?
This patent likely forms part of an international patent family, with corresponding filings aimed at securing market rights in multiple jurisdictions, maximizing commercial leverage.

5. How should stakeholders perform freedom-to-operate assessments related to this patent?
Stakeholders must analyze the claim language against existing patents and publications, focusing on the scope of claims and relevant prior art to identify potential infringement or invalidation risks.


References

  1. [Patent Document CA2822994], Canadian Intellectual Property Office.
  2. WIPO. Patent Landscape Reports.
  3. Canadian Patent Act and Patent Rules.
  4. Patent Prosecution History (if available).
  5. Industry reports on pharmaceutical patent strategies.

Disclaimer: This analysis is based on publicly available information and typical patent structures. For detailed legal advice or specific claim interpretation, consult a registered patent attorney or agent specializing in pharmaceutical patents.

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