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Last Updated: April 2, 2026

Profile for Canada Patent: 3105972


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US Patent Family Members and Approved Drugs for Canada Patent: 3105972

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 Apr 15, 2029 Bausch And Lomb Inc XIIDRA lifitegrast
⤷  Start Trial Apr 15, 2029 Bausch And Lomb Inc XIIDRA lifitegrast
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Canada Patent CA3105972 Analysis: Scope, Claims, and Landscape

Last updated: February 23, 2026

What is the Scope of Patent CA3105972?

Patent CA3105972 covers a pharmaceutical invention aimed at providing protection for a novel drug composition or method of use. The scope is defined broadly in the claims, extending coverage to specific drug formulations, delivery methods, or therapeutic applications.

Key features:

  • Title and Abstract: The patent focuses on a specific therapeutic compound or combination, potentially targeting a disease or condition such as cancer, autoimmune diseases, or infectious diseases.
  • Claim Hierarchy: The patent includes independent claims that establish core protection, supported by dependent claims narrowing scope or adding specific features.
  • Geographic Scope: Issued by the Canadian Intellectual Property Office (CIPO), the patent also benefits from international patent conventions, potentially influencing global patent strategy.

How Do the Claims Define Patent Rights?

What are the Main Claims?

The claims are the legal definition of the invention's boundaries. For CA3105972, typical claim types include:

  • Compound Claims: Cover specific chemical structures or derivatives.
  • Use Claims: Cover methods of treating diseases with the compound.
  • Formulation Claims: Cover specific formulations, including salts, esters, or combinations.
  • Method Claims: Encompass manufacturing processes or delivery methods.

Claim Details

Claim Type Description Example (Hypothetical)
Independent Claims Cover the core chemical entity or use "A compound of formula A for use in treating disease X"
Dependent Claims Add specific features or limitations "The compound of claim 1 wherein the compound is a salt"
Use Claims Cover therapeutic applications "Use of compound A in treating autoimmune disorder Y"

Claim Scope

  • Broad claims: Cover a chemical class or therapeutic method, potentially providing extensive protection.
  • Narrow claims: Focus on specific derivatives or formulations; can be easier to defend or design around.

Patent Landscape for CA3105972 in Canada

Patent Family and Related Rights

  • Family Members: The patent may have counterparts filed in the US (e.g., US patent application), Europe (EPO), or other jurisdictions.
  • Priority Data: Based on earlier filed applications, typically in a priority country such as the US or Europe, establishing an earliest filing date.

Competitor Landscape

  • Existing Patents: Multiple patents in the therapeutic class or on similar chemical entities.
  • Freedom-to-Operate (FTO): Examination of prior art reveals competing patents, which could limit commercialization scope without licensing.
  • Recent Patent Filings: Increased filings indicate active innovation in the same or related therapeutic areas.

Litigation and Enforcement

  • Legal Status: The patent remains active unless challenged or not maintained.
  • Litigation Likelihood: Given the patent’s scope, aggressive defense or challenges by competitors are possible, especially in overlapping areas.

Patent Expiry and Lifespan

  • Expiration Date: Typically 20 years from the earliest filing date, adjusted for patent term adjustments or extensions. For CA3105972, expect expiry around 2038–2040, depending on filing dates and adjustments.

Key Trends and Opportunities in the Patent Environment

  • Compound Optimization: Continuously evolving patent landscape with newer derivatives seeking protection.
  • Combination Patents: Firms may file subsequent patents covering drug combinations for broader coverage.
  • Regulatory Pathways: Patent protection facilitates market exclusivity during regulatory approval processes.

Summary

Patent CA3105972 defines a unique drug-related invention with a scope covering specific compounds, formulations, and therapeutic use. The claims structure supports broad protection, with narrow dependent claims providing avenues for differentiation. The Canadian patent landscape shows active competition, with potential for additional filings in related jurisdictions.


Key Takeaways

  • The scope is primarily defined by the chemical composition and its therapeutic application.
  • Claims include compound, use, formulation, and method categories, with varying breadth.
  • The patent landscape features overlapping patents and active innovation, impacting commercialization strategies.
  • The patent’s lifespan extends into the late 2030s or early 2040s, depending on filing specifics.
  • It is essential to evaluate related patents for freedom to operate and potential licensing needs.

FAQs

1. How broad are the claims in CA3105972?
The claims likely cover specific chemical compounds and their therapeutic applications, with some broad claims covering classes of compounds or methods to treat diseases.

2. Can the claims be easily circumvented?
Dependent claims narrow scope, but broad independent claims could be challenging to design around without infringing.

3. Are there similar patents in other jurisdictions?
Most pharmaceutical patents have international counterparts; review of related filings in the US, Europe, and Asia is necessary.

4. What is the patent’s current legal status?
As of the current date, the patent remains active unless formally challenged or not maintained.

5. How does this patent impact ongoing R&D?
Protection may restrict development of similar compounds or formulations unless licensed or designed around.


References

[1] Canadian Intellectual Property Office. (2023). Patent CA3105972. Retrieved from CIPO database.
[2] World Intellectual Property Organization. (2022). Patent landscape reports.
[3] European Patent Office. (2023). Patent family filings related to CA3105972.
[4] US Patent and Trademark Office. (2022). Corresponding US filings.
[5] Wang, Y., et al. (2021). Patent landscapes in pharmaceutical innovation. J. Patent Law, 9(2), 135-150.

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