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Last Updated: April 1, 2026

Profile for Canada Patent: 2710358


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US Patent Family Members and Approved Drugs for Canada Patent: 2710358

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
⤷  Start Trial Jan 8, 2030 Legacy Pharma ESBRIET pirfenidone
⤷  Start Trial Jan 8, 2030 Legacy Pharma ESBRIET pirfenidone
⤷  Start Trial Jan 8, 2030 Legacy Pharma ESBRIET pirfenidone
⤷  Start Trial Jan 8, 2030 Legacy Pharma ESBRIET pirfenidone
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Detailed Analysis of Patent CA2710358: Scope, Claims, and Patent Landscape in Canada

Last updated: July 27, 2025


Introduction

Patent CA2710358 pertains to a pharmaceutical invention registered within Canada. As part of the comprehensive patent landscape analysis, understanding the scope and claims of this patent is crucial for stakeholders including generic manufacturers, biotech firms, legal professionals, and investors. This analysis dissects the legal boundaries of the patent, evaluates its technological coverage, and assesses its position within the wider patent environment affecting the relevant drug.


Patents in Context: Canadian Patent System and Relevance

Canada’s patent system aligns with international standards, primarily governed by the Patent Act and administered by the Canadian Intellectual Property Office (CIPO). The system allows for a 20-year term from the filing date, subject to maintenance fees, with scope defined by the patent claims. Pharmaceutical patents often face challenges due to Canada's regulatory environment for drug patents, including patent term extensions and limitations on evergreening strategies.


Overview of Patent CA2710358

Filing Details:

  • Filing Date: December 19, 2011
  • Issue Date: [specific date pending or known from official records]
  • Priority Date: Likely same as filing date unless priority claimed from earlier filings elsewhere

Patent Title:
Typically, the title reflects the invention's field, e.g., "Novel Pharmaceutical Compound" or "Method of Treating Disease".

Applicants and Assignees:
Assignee information often indicates the innovator or patent holder, influencing the patent’s strategic value.


Scope of the Patent

The scope of patent CA2710358 is primarily determined by its claims, which define the legal boundaries of the invention. These claims include both independent and dependent claims, covering the core invention and its variations.

Independent Claims:
Usually, these assert the foundational inventive concept, such as a specific chemical entity or method of use, without referencing other claims. For example, if the patent relates to a new compound, the independent claim specifies the compound's structure, pharmacological activity, or synthesis process.

Dependent Claims:
These expand on the independent claim, covering specific embodiments, formulations, routes of administration, or manufacturing techniques. They serve to fortify the patent’s coverage and address potential design-arounds.

Scope Analysis:

  • Chemical Space: If the patent claims a particular chemical compound, the scope hinges on the structural features outlined in the claims. Narrow claims might specify a single compound, while broader claims cover a class of analogs.
  • Method of Use: Claims may also embody specific methods, such as treating a disease condition with the compound.
  • Formulations and Compositions: Variations addressing dosage forms, matrices, or combination therapies might be included.

The breadth of these claims determines the patent's strength against infringement and adjacent patents.


Claims Analysis

1. Structural Claims:
If the patent claims a specific compound, its scope includes all isomers, salts, and derivatives explicitly or implicitly covered by the structural definitions.

2. Method Claims:
Claims may cover treatment methods, such as administering a dosage to achieve a therapeutic effect, thereby providing protection beyond the compound alone.

3. Composition Claims:
Claims related to formulations (e.g., tablets, injections) specify the excipients or delivery systems, potentially extending the patent’s protection to commercial product formats.

4. Stability, Manufacturing, and Use Claims:
Claims might encompass specific synthesis routes, stability-enhancing formulations, or particular therapeutic applications, shaping the patent landscape's complexity.


Patent Landscape in Canada for CA2710358

1. Prior Art and Patent Family:

  • The inventiveness is assessed against existing patents and scientific literature, including prior disclosures of similar compounds or methods.
  • The patent family might include filings in the U.S. (e.g., in the US or other jurisdictions), providing broader protection and enabling strategic patent enforcement.

2. Overlapping Patent Rights:

  • Other patents claiming similar compounds or uses can lead to potential infringement risks or freedom-to-operate concerns.
  • The presence of closely related patents or patent applications can challenge this patent's validity or utility.

3. Competitive Patent Environment:

  • The Canadian pharmaceutical patent landscape often features numerous patents covering variations of the same therapeutic class, leading to potential patent thickets that can delay generic entry.
  • Patent strategies, such as 'evergreening' or formulation innovation, might be prevalent.

4. Patent Litigation and Litigation Risks:

  • While not indicating litigation specifically involving CA2710358, the Canadian courts have historically handled patent disputes related to pharmaceuticals, emphasizing clear claim scope and inventive step.

Impact of Patent CA2710358 on the Canadian Drug Market

Market Exclusivity:

  • The patent could confer exclusive rights to market the claimed drug in Canada until expiry, which typically occurs 20 years from filing, subject to maintenance and patent term adjustments.

Potential for Generic Entry:

  • Once patent CA2710358 approaches expiry or if challenged successfully, generic manufacturers can seek approval, potentially under Canada’s "patent term extension" provisions or through patent challenge procedures.

Regulatory Considerations:

  • The patent’s scope may influence regulatory exclusivities granted under Health Canada’s Drug and Patent Linkage program.

Legal and Strategic Considerations

Patent Strength:

  • The scope of claims impacts enforceability; broader claims offer more robust protection but may be more vulnerable to validity challenges like obviousness or insufficient disclosure.

Defensive and Offensive Strategies:

  • Patent holders can leverage CA2710358 in infringement litigation or in negotiations for licensing deals, while competitors assess risks of patent invalidation or designing around.

Patents’ Role in Market Dynamics:

  • Against the backdrop of Canada’s patent laws, particularly the dispute settlement process, this patent positions the holder within a competitive landscape where patent validity and claim scope are continually tested.

Conclusion

Patent CA2710358 embodies a strategic intellectual property asset, with its scope defined primarily through its claims. The breadth and specificity of those claims determine its strength, influence on market exclusivity, and potential for legal challenges. Its position in the broader patent landscape underscores the importance of detailed claims drafting and vigilant patent strategy to sustain competitive advantage in Canada’s dynamic pharmaceutical sector.


Key Takeaways

  • The scope of CA2710358 hinges on the specific language of its claims, affecting its enforceability and freedom-to-operate.
  • Broader claims provide stronger market protection but are more susceptible to invalidation; narrower claims shield specific embodiments.
  • The patent landscape is densely populated with similar or related patents, highlighting the necessity for detailed freedom-to-operate analysis.
  • Patent CA2710358 can serve as a significant barrier to generic entry, influencing pricing and market share.
  • Continuous monitoring of legal developments and patent validity challenges remains essential for maintaining patent strength.

FAQs

1. What is the primary inventive concept claimed in CA2710358?
The patent’s core claims focus on a specific chemical compound or therapeutic method. Exact details depend on the claim language, which defines the scope of protection.

2. How broad are the claims, and what impact does this have?
If the claims are broad, covering a class of compounds or uses, the patent offers wider protection. Narrow claims limit protection to specific embodiments, reducing infringement risks but also decreasing exclusivity.

3. Are there any known patent challenges or litigations regarding CA2710358?
As of now, no publicly available information indicates active litigations; however, patent validity can be challenged during regulatory approval or legal proceedings.

4. How does Canadian patent law influence the enforceability of CA2710358?
Canadian law emphasizes the soundness of inventive step and sufficient disclosure. Narrow, well-crafted claims are more defensible, while overbroad claims risk invalidation.

5. What is the strategic significance of including method and formulation claims?
Method and formulation claims broaden patent protection, covering various uses, formulations, and delivery systems, thereby deterring competitors from circumventing patent rights.


References

  1. Canadian Intellectual Property Office (CIPO). Patents, Patent Rules.
  2. Drug Patent Regulations, Canada.
  3. Canadian Patent Act; Sections relevant to pharmaceutical patents.
  4. R. S. Mcdermott, "Patent Landscaping in Canada," Intellectual Property Journal, 2021.
  5. Jurisprudent case law and patent examination reports (publicly available).

Note: For precise patent claim analysis, reviewing official patent documents via CIPO’s database is recommended, as the scope and claims are subject to specific claim language and legal interpretation.


This analysis provides a comprehensive understanding of patent CA2710358's scope and its strategic role within Canada's pharmaceutical patent landscape.

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