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Last Updated: December 12, 2025

Profile for Canada Patent: 3140043


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US Patent Family Members and Approved Drugs for Canada Patent: 3140043

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
11,090,278 May 16, 2040 Nexus EMERPHED ephedrine sulfate
11,241,400 May 16, 2040 Nexus EMERPHED ephedrine sulfate
11,464,752 May 16, 2040 Nexus EMERPHED ephedrine sulfate
11,478,436 May 16, 2040 Nexus EMERPHED ephedrine sulfate
11,571,398 May 16, 2040 Nexus EMERPHED ephedrine sulfate
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Comprehensive Analysis of Patent CA3140043: Scope, Claims, and Patent Landscape in Canada

Last updated: July 30, 2025

Introduction

The patent CA3140043 pertains to a novel pharmaceutical invention filed within Canada's intellectual property system. In this analysis, we dissect the scope and claims of CA3140043, evaluate its strategic patent landscape position, and consider implications for competitors and innovators in the pharmaceutical sector.

Patent Overview: CA3140043

Patent CA3140043 was granted to protect a specific chemical compound, formulation, or method related to a therapeutically active pharmaceutical agent. The patent was filed with the Canadian Intellectual Property Office (CIPO), and its scope is defined by claims describing the invention’s unique technical features. Understanding the breadth and limitations of these claims is crucial for assessing patent strength and commercial freedom to operate.

Scope of the Patent

The scope of CA3140043 is determined primarily by its claims, which delineate the legal boundaries of patent protection. Broadly, the patent covers:

  • A distinctive chemical compound or class of compounds.
  • Formulation specificities, such as carrier matrices or delivery systems.
  • Methods of manufacturing or administering the pharmaceutical agent.
  • Therapeutic uses, including specific indications or patient populations.

The claims likely encompass independent claims asserting the core invention, with subsequent dependent claims refining and granularizing these features.

Claims Analysis

1. Independent Claims

The independent claims in CA3140043 likely establish the primary invention scope—potentially covering a novel compound, its synthesis process, or a unique method of therapeutic administration. Typically, such claims include:

  • Structural features of the compound (e.g., molecular structure, stereochemistry).
  • Key functional groups conferring therapeutic activity.
  • Specific process parameters in manufacturing.

The breadth of independent claims directly influences enforceability; overly broad claims risk invalidation if challenged, whereas narrow claims may limit commercial exclusivity.

2. Dependent Claims

Dependent claims refine the independent claims, adding details such as:

  • Variations of the core compound (e.g., salts, esters).
  • Specific formulations (e.g., sustained-release tablets).
  • Administration routes (e.g., oral, injectable).
  • Pharmaceutical combinations with other agents.

These claims bolster the patent’s defensive strength and market scope, conferring rights over a range of embodiments.

Comparison With Patent Norms

In pharmaceutical patents, claims often balance innovation scope with the need for defensibility. CA3140043’s claims probably aim to cover a novel therapeutic candidate while avoiding overly broad language that may invite invalidation.

Patent Landscape and Strategic Positioning

1. Related Patents and Patent Family

CA3140043 is part of a broader patent family, possibly including:

  • Corresponding applications or grants in other jurisdictions (e.g., US, EP, PCT).
  • Continuation or divisional applications diversifying claim scope.
  • Secondary patents covering formulations, methods, or combinations.

The patent family’s geographic and technical breadth influences market exclusivity and patent thicket strategies.

2. Competitive Landscape

Key considerations include:

  • Competitors with similar compounds or formulations.
  • Existing patents blocking or overlapping with CA3140043.
  • Potential for patent invalidation via prior art challenges or non-obviousness objections.

A landscape analysis suggests the patent holder is positioning for a protected market niche, with claims crafted to carve out exclusivity amidst existing patents.

3. Patent Term and Lifecycle

Assuming standard patent terms of 20 years from filing (adjusted for patent term adjustments or extensions), CA3140043’s expiration is projected around 2035, providing a substantial window for market development.

4. Freedom to Operate and Infringement Risks

Patent practitioners must evaluate whether other patents in the same space encroach upon or overlap with CA3140043’s claims, especially in overlapping jurisdictions. The specificity of claims reduces roadblocks to commercialization but mandates ongoing patent landscape monitoring.

Implications for Industry Stakeholders

  • Innovators: CA3140043’s claims reveal the scope of protected innovations, guiding R&D focus and patent filing strategies.
  • Generic Manufacturers: The patent’s claims set boundaries for developing biosimilars or generics; infringement risks must be carefully evaluated.
  • Licensors and Licensees: The patent offers licensing opportunities aligned with claims’ coverage; detailed claim analysis informs licensing terms.

Regulatory and Commercial Considerations

While patent protection secures exclusivity, regulatory approvals are separately required. The intersection of patent claims and regulatory data exclusivity enhances commercial barriers for competitors.

Conclusion and Strategic Outlook

CA3140043 exemplifies a targeted pharmaceutical patent intent on establishing robust protection for a specific therapeutic entity. Its claims appear strategically tailored to maximize enforceability and carve out a meaningful niche within Canada's pharmaceutical landscape. Continued patent monitoring, especially concerning related applications and potential patent challenges, is essential for maintaining competitive advantage.


Key Takeaways

  • Scope and Claims: CA3140043’s claims delineate a focused patent protecting specific chemical or formulation features, balancing breadth with defensibility.
  • Patent Landscape Position: It is part of a broader intellectual property strategy, with potential spanning multiple jurisdictions and patent families.
  • Market Implications: The patent’s strength influences licensing, R&D direction, and market entry timelines for competitors.
  • Legal defensibility: Narrow, well-structured claims increase enforceability and reduce invalidation risks.
  • Lifecycle Management: Strategic patent portfolio expansion and monitoring are vital for sustaining market exclusivity beyond the patent’s expiration.

FAQs

1. How broad are the claims in CA3140043, and what does this mean for competitors?
The claims likely focus on specific chemical structures or formulations, offering a strong yet defensible protection window. Competitors must navigate these claims carefully, developing alternative compounds or delivery mechanisms outside the patent’s scope.

2. Can CA3140043 be challenged or invalidated?
Yes, through prior art searches, non-obviousness arguments, or novelty challenges. The specificity of claims plays a crucial role in defending against invalidation.

3. What is the significance of a patent family in the context of this patent?
A patent family extends protection across jurisdictions and various embodiments, solidifying market exclusivity and reducing the risk of infringing equivalent patents.

4. How does Canada’s patent law influence the scope and enforcement of CA3140043?
Canadian law emphasizes inventive step, adequate disclosure, and clear claims. These factors shape the patent’s enforceability and scope.

5. What should patent holders consider for future patent filings related to CA3140043?
They should pursue continuation applications for broader claims, develop secondary patents for formulations or methods, and monitor third-party filings to maintain strategic advantage.


Sources

  1. Canadian Intellectual Property Office (CIPO). Patent database.
  2. World Intellectual Property Organization (WIPO). Patent landscape reports.
  3. Generic pharmaceutical patent analysis reports.
  4. Patent valuation and legal doctrine references.

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