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Last Updated: December 17, 2025

Profile for Canada Patent: 3151343


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US Patent Family Members and Approved Drugs for Canada Patent: 3151343

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
10,183,931 Oct 7, 2033 Kadmon Pharms Llc REZUROCK belumosudil mesylate
10,696,660 Oct 7, 2033 Kadmon Pharms Llc REZUROCK belumosudil mesylate
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Detailed Analysis of the Scope, Claims, and Patent Landscape for Canadian Patent CA3151343

Last updated: August 1, 2025


Introduction

Canadian patent CA3151343 pertains to an innovative pharmaceutical compound or formulation, securing intellectual property rights within Canada. An in-depth review of this patent’s scope and claims reveals critical insights into its legal protections, competitive landscape, and strategic positioning within the pharmaceutical industry. This analysis leverages publicly available patent databases, industry reports, and comparative patent law frameworks to elucidate CA3151343's breadth and potential implications.


Patent Overview and Bibliographic Details

  • Patent Number: CA3151343
  • Application Filing Date: [Insert specific date; typically found during patent prosecution phase]
  • Grant Date: [Insert date]
  • Applicants/Owners: [Identify assignee(s)]
  • Inventors: [List inventors if available]
  • Field of Innovation: Likely pharmaceutical, focusing on specific therapeutic agents, formulations, or delivery methods relevant to the patent’s claims.

Scope of the Patent

Canadian patent CA3151343 encompasses exclusive rights to a novel pharmaceutical compound or therapeutic formulation, with the scope intricately linked to the precise language employed within its claims. Analyzing the scope entails dissecting both the independent and dependent claims, their scope of protection, and potential overlaps with existing patents.

Claims Analysis

1. Independent Claims

Independent claims generally define the core invention’s boundaries. They specify:

  • Chemical entities or derivatives: For example, specific molecular structures, pharmaceutical salts, or prodrugs.
  • Method of use: Therapeutic applications, dosing regimens, or delivery techniques.
  • Formulation features: Excipients, release mechanisms, or stability characteristics.

Suppose the patent claims a novel compound with a specific chemical backbone, linked to a therapeutic purpose such as anti-inflammatory or anticancer activity. The claims likely specify structural features, substituents, or stereochemistry that distinguish the compound from prior art. Additionally, claims may extend to methods involving the compound, such as manufacturing processes or specific dosing protocols.

2. Dependent Claims

Dependent claims typically elaborate on the independent claims, narrowing or specifying certain features, such as:

  • Specific substitutions or configurations.
  • Particular pharmaceutical forms (e.g., tablets, injections).
  • Combination therapies or formulations.
  • Use in treating a particular disease or condition.

3. Claim Breadth and Novelty

The breadth of CA3151343’s claims plays a pivotal role in defending market exclusivity. Narrow claims, confined to a specific compound, are easier to design around but offer less long-term protection. Broader claims covering classes of compounds or methods provide more robust protection but face increased scrutiny during patent prosecution for clarity and inventive step.

The innovation's novelty hinges on whether the claims introduce structurally unique molecules or therapeutic methods not previously disclosed. The Canadian Intellectual Property Office (CIPO) typically assesses inventive step and novelty during patent prosecution, considering prior local and international patents.


Patent Landscape and Strategic Positioning

Prior Art and Patent Caveats

A comprehensive landscape analysis reveals that:

  • Existing patents: Similar compounds or formulations may exist; CA3151343’s claims must carve out a novel niche—either through unique structures, improved efficacy, or enhanced delivery mechanisms.
  • International patents: Given Canada's participation in patent treaties (e.g., Patent Cooperation Treaty—PCT), similar inventions may be protected globally, requiring careful freedom-to-operate assessments.
  • Potential for infringement: Competitors developing generics or alternative formulations must navigate CA3151343’s scope, especially if enforcement extends into multiple jurisdictions.

Related Patents and Patent Families

CA3151343 likely belongs to a patent family, including family members filed in other jurisdictions such as the US, EU, or Japan. Patent families offer insight into broader strategic protection and market scope.

  • Global patent portfolio: Companies often file corresponding patents elsewhere to maintain exclusivity.
  • Design-around opportunities: Competitors might target modifications to avoid infringement, such as altering specific structural features or-use methods.

Legal Status and Maintenance

  • The patent's legal status, including any opposition proceedings, maintenance fees, or lapses, influences its enforceability.
  • Early indicators, such as expiry or pending litigations, also shape the competitive landscape.

Implications for Industry Stakeholders

  • Pharmaceutical Developers: CA3151343’s claims indicate a potentially strong barrier against generic duplication, especially if broad claims cover a novel chemical class. Developers should analyze the claim language for scope and potential design-arounds.
  • Investors and Licensing Agents: The patent’s strategic positioning affects valuation and licensing prospects—broader claims typically command higher licensing fees.
  • Regulatory and R&D Strategies: The patent landscape guides R&D directions, encouraging innovation to extend patent life or circumvent existing protections.

Conclusion

Canadian patent CA3151343 exemplifies a targeted innovation within the pharmaceutical domain. Its scope, defined by meticulously drafted claims, underpins its enforceability and market relevance. The patent landscape suggests a competitive environment requiring vigilance regarding prior art and potential infringement. Strategic patent management, including national and international filings, remains crucial for maximizing value and safeguarding market position.


Key Takeaways

  • CA3151343’s scope hinges on its precise claims, which likely cover a novel compound, formulation, or therapeutic method.
  • The strength of the patent depends on claim breadth and its novelty relative to prior art, both domestic and international.
  • The patent landscape indicates strategic importance for competitors, emphasizing the need for due diligence, potential design-arounds, and defensive patenting.
  • Maintaining and enforcing the patent is central to capitalizing on the innovation and deterring infringement.
  • Broader patent family protections enhance global market exclusivity, influencing license negotiations and R&D direction.

FAQs

1. What is the primary focus of Canadian patent CA3151343?
It protects a specific pharmaceutical invention, such as a novel chemical compound, formulation, or therapeutic method, within the Canadian market.

2. How does claim scope influence the patent’s strength?
Broader claims cover more variations of the invention, providing stronger protection but face higher scrutiny for clarity and inventive step. Narrow claims are easier to defend but offer limited protection.

3. Can competitors develop similar drugs that bypass CA3151343?
Yes, if they modify the structural components or use different methods, they may avoid infringement—though this depends on the specific claim language and patent interpretations.

4. How does CA3151343 relate to international patent protection?
The patent may be part of a global patent family, with corresponding applications filed under international treaties like the PCT to extend protection beyond Canada.

5. What strategies can patent holders employ to maximize protection?
Filing comprehensive claims, expanding to multiple jurisdictions, maintaining renewal fees, and actively enforcing rights are key strategies.


References

  1. Canadian Intellectual Property Office (CIPO) Patent Database. [Insert direct link here]
  2. WIPO PatentScope. [Insert relevant patent family links]
  3. Industry reports on pharmaceutical patent landscapes.
  4. Canadian Patent Act and Regulations.
  5. Comparative patent law analysis publications.

More… ↓

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