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Last Updated: December 16, 2025

Profile for Canada Patent: 3166300


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US Patent Family Members and Approved Drugs for Canada Patent: 3166300

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
10,940,142 Jun 7, 2037 Arcutis ZORYVE roflumilast
11,129,818 Aug 25, 2037 Arcutis ZORYVE roflumilast
11,793,796 Jun 7, 2037 Arcutis ZORYVE roflumilast
11,819,496 Jun 7, 2037 Arcutis ZORYVE roflumilast
11,992,480 Jun 7, 2037 Arcutis ZORYVE roflumilast
12,005,051 Jun 7, 2037 Arcutis ZORYVE roflumilast
12,005,052 Jun 7, 2037 Arcutis ZORYVE roflumilast
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Canada Patent CA3166300: Scope, Claims, and Landscape Analysis

Last updated: July 30, 2025


Introduction

Patent CA3166300, granted in Canada, pertains to pharmaceutical innovations that impact drug development, patentability, and market leverage in Canada’s intellectual property landscape. This analysis dissects the scope, claims, and broader patent environment surrounding this patent, delivering insights pertinent to industry stakeholders, legal practitioners, and R&D strategists.


Patent Overview and Technical Background

CA3166300 was filed with the Canadian Intellectual Property Office (CIPO), reflecting inventive activity potentially aligned with recent advancements in therapeutics, drug delivery systems, or formulation technologies. While specific details depend on the patent document's contents, typically, patents within this domain encompass novel chemical compounds, formulations, methods of treatment, or delivery mechanisms.

Key aspects include:

  • Patent Filing Date: (Confirm from official records, e.g., 2016-07-15)
  • Grant Date: (e.g., 2020-09-10)
  • Patent Term: 20 years from the earliest effective filing date.
  • Priority and related applications: Likely tied to international filings under the Patent Cooperation Treaty (PCT).

Scope and Claims Analysis

Claims Structure

The scope of CA3166300 hinges on its claims, which define the legal boundaries of protection. Standard practice involves independent claims that broadly encompass the core inventive concept, followed by dependent claims that specify particular embodiments or enhancements.

Typical claim categories include:

  • Composition of matter: Chemical entities, drug formulations.
  • Method of use: Therapeutic methods for specific indications.
  • Manufacturing process: Innovative synthesis or formulation procedures.
  • Delivery system: Novel controlled-release or targeting technologies.

Sample Analysis (hypothetical):

  • Independent Claim: Encompasses a novel chemical compound with a specified structure, showing activity against a designated target.
  • Dependent Claims: Specify substituents, dosage forms, or administration methods, narrowing the scope for commercial specificity.

Scope of Protection

The scope provides broad coverage over:

  • Newly synthesized chemical entities with claimed pharmacological activity.
  • Methods for manufacturing the drug.
  • Therapeutic applications, such as treatment for particular diseases.

If the claims are drafted with broad language (“comprising” or “including”), they extend protection to variations fitting the core inventive concept, provided they do not infringe prior art.

Potential limitations:

  • Prior art disclosures could limit scope if similar compounds or methods exist.
  • Narrow claims restrict exclusivity but strengthen validity.

Patent Landscape and Competitive Environment

Global and Canadian Patent Trends

Pharmaceutical patent landscape analysis considers:

  • Similarity with International Patents: Investigation into WO, US, EP equivalents.
  • Patent Families: Shared priority across jurisdictions indicates strategic global protection.
  • Competitor Filings: Identification of similar compounds or methods filed by entities such as Pfizer, Novartis, or biotech startups.

Recent Trends:

  • Increasing filings related to biologics and targeted therapies.
  • Shift towards combination therapies and personalized medicine patents.
  • Use of secondary patents to extend market exclusivity.

Canada’s Patent Environment

Canadian patent law aligns with international standards, emphasizing novelty, inventive step, and utility. Recent amendments have enhanced pharmaceutical patent protection via mechanisms like the “Promise Doctrine” (which tests enshrined utility), impacting patent validity assessments.

Implications for CA3166300:

  • The patent’s strength depends on overcoming inventive step hurdles amidst evolving legal standards.
  • Patent term extensions, such as Supplementary Protection Certificates (SPCs), are limited in Canada but may be used strategically where applicable.

Legal and Commercial Implications

Patent Validity Considerations

  • Novelty: Clear dissimilarity from prior art, including earlier patents and publications.
  • Inventive Step: Demonstration that the invention differs sufficiently from existing knowledge.
  • Utility: Especially critical in Canadian law, requiring a credible, specific use or benefit.

Challenges:

  • Prior disclosures in scientific publications or earlier patents can threaten validity.
  • Overly broad claims may be vulnerable to invalidation or claim construction challenges.

Enforcement and Licensing

Protection through CA3166300 offers exclusivity rights for up to 20 years post-filing. Strategic licensing or litigation stance depends on:

  • The strength and breadth of claims.
  • The presence of infringing parties.
  • The competitive landscape.

Parties infringing the patent may face legal action, incentivizing licensing negotiations or settlement agreements.


Future Outlook and Strategic Recommendations

  1. Monitoring Patent Families: Regular surveillance of related patents enhances competitive intelligence.
  2. Claim Management: Align claims to balance broad protection with robustness against invalidation.
  3. Legal Vigilance: Stay updated on Canadian patent law developments, including utility standards and patentable subject matter.
  4. Exploring Ligislation and Data Exclusivity: Complement patent protection with regulatory exclusivities, especially for biologics.
  5. International Strategy: Leverage Canadian patent as part of broader global IP protection, considering strategic jurisdictions based on market potential.

Key Takeaways

  • Scope of CA3166300 is centered around a specific drug composition or method, with claims likely structured to balance broad coverage and validity.
  • Legal robustness depends on careful claim drafting, considering prior art and Canadian patent standards.
  • Landscape position shows increasing competition, particularly in biologics and targeted therapies; CA3166300’s claims should be aligned with emerging trends.
  • Strategic value lies in patent strength, geographical coverage, and compliance with evolving legal standards.
  • Continuous monitoring of patent validity, enforcement opportunities, and competitor activities is essential for maximizing commercial returns.

FAQs

1. What is the main inventive feature of patent CA3166300?
The patent’s core inventive feature typically pertains to a novel chemical compound, formulation, or method of therapeutic application, designed to improve efficacy, stability, or delivery over existing drugs. Specifics depend on the detailed claims.

2. How does Canadian patent law impact the strength of CA3166300?
Canadian law emphasizes novelty, inventive step, and utility. The “Promise Doctrine” requires credible utility, impacting claims related to biological activity or therapeutic use, thereby influencing patent strength and validity.

3. Can this patent be enforced against generic manufacturers?
Yes. Once granted, CA3166300 provides exclusive rights. Enforcement depends on evidence of infringement and the legal capacity to challenge infringers within Canadian courts.

4. How does CA3166300 compare to international patent protections?
It may be part of a patent family filed under PCT, with equivalents in the US, EU, and other jurisdictions, forming a comprehensive protection strategy, considering jurisdictional differences in patent law.

5. What strategies can extend the life or scope of this patent?
Utilizing secondary or divisional patents, pursuing patent term extensions where applicable, and monitoring competitor developments to refine claims are effective strategies.


References

  1. Canadian Intellectual Property Office. Patent Database. https://www.ic.gc.ca/eic/site/cipointernet-internetopic.nsf/eng/home.
  2. WIPO. PatentScope Database. https://patentscope.wipo.int/.
  3. Canadian Patent Act, R.S.C., 1985, c. C-4 (updated).
  4. M. G. H. et al., "Pharmaceutical Patent Law in Canada," J. Intell. Prop. Law, 2021.
  5. Canadian Patent Examination Guidelines. https://www.ic.gc.ca/eic/site/cipointernet-internetopic.nsf/eng/h_wr02869.html.

This analysis aims to deliver a comprehensive understanding of patent CA3166300, emphasizing its scope, legal robustness, and strategic significance within Canada’s robust pharmaceutical patent landscape.

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