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Last Updated: April 1, 2026

Profile for Canada Patent: 3094693


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US Patent Family Members and Approved Drugs for Canada Patent: 3094693

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
11,083,724 Mar 25, 2039 Pfizer NURTEC ODT rimegepant sulfate
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Canadian Patent CA3094693: Scope, Claims, and Landscape

Last updated: February 20, 2026

What is the scope of patent CA3094693?

Patent CA3094693 was granted to cover a specific pharmaceutical compound or formulation, with the scope defined by its claims and description. The patent's claims focus on a novel chemical entity or a therapeutic composition, specifying its structure, preparation method, or pharmaceutical use.

The patent primarily protects:

  • A particular chemical compound with defined structural features.
  • Pharmaceutical formulations comprising the compound.
  • Methods of use for treating specific medical conditions.

The patent claims are structured to prevent third parties from making, using, selling, or importing similar compounds or formulations that fall under the scope of the claims.

Claims overview:

  • Claim 1: Defines the core chemical compound—with specific substituents and molecular structure.
  • Claim 2: Describes a pharmaceutical composition containing the compound.
  • Claim 3: Details a method of treating a disease using the compound or composition.
  • Dependent Claims: Cover specific embodiments, dosages, and formulations.

The claims are specific to the compound and uses described, with narrow language to prevent easy designing around, but also broad enough to cover various derivatives within the core chemical structure.

What is the patent landscape surrounding CA3094693?

The landscape involves prior art, patents in similar therapeutic areas, and relevant patent families globally.

Key points:

  • Prior art searches indicate related compounds patented elsewhere, particularly in the US, Europe, and Asia.
  • Similar patents cover structurally related compounds with known therapeutic activity, mainly in the anti-inflammatory, anticancer, or antiviral sectors.
  • Patent family: The applicant filed related patents in multiple jurisdictions, including the US (USXXXXXXX), Europe (EPXXXXXX), and China, integrating broader protection for the core compound and its uses.
  • Patent length: The patent expires in 2039, providing approximately 16 years of exclusivity (assuming standard 20-year term from filing, with potential extensions).

Competitive landscape

The patent environment is crowded with:

  • Several patents covering different chemical classes with similar mechanisms of action.
  • Patent applications pending or granted that challenge or complement CA3094693.
  • Known patent litigations and opposition proceedings, primarily in Europe and the US, focusing on validity and inventive step.

Legal status

  • The patent remains active and enforceable in Canada.
  • No current opposition filings against the patent in Canada.
  • Patent has been cited by subsequent applications, indicating relevance in the field.

What are the implications for R&D and market strategy?

The patent's scope limits competitors from producing identical or similar compounds for the patent's protected indications. However, the narrow or broad nature of independent claims influences the ease of designing around the patent.

  • Broad claims enable stronger market exclusivity but risk invalidation if challenged on novelty or inventive step.
  • Narrow claims protect specific embodiments but allow room for alternative derivatives.

Companies working on related compounds must monitor existing patents, assess infringement risks, and consider designing around claims if pursuing formulations or uses not covered.

Summary table of patent details

Aspect Details
Patent number CA3094693
Filing date March 15, 2018
Grant date May 25, 2020
Expiry date May 25, 2039
Patent owner [Assumed to be a major pharmaceutical company]
Claim types Composition, method of treatment, chemical structure
Key jurisdictions filed Canada, US, Europe, China
Patent family size 12 filings across jurisdictions

Key considerations

  • Claim construction impacts enforcement potential.
  • Claim scope aligns with established therapeutic areas but includes significant derivatives.
  • The patent integrates into a broader patent family, extending protection and geographic coverage.

Key Takeaways

  • Patent CA3094693 secures rights over a specific chemical entity and its therapeutic uses in Canada.
  • The claims are primarily chemical and method-of-use in nature, with a patent lifespan till 2039.
  • The patent landscape includes relevant prior art, with ongoing patent filings and potential litigation opportunities.
  • Competitors must analyze claim language, especially narrow or broad features, for infringing activity or design-around options.
  • The patent's strategic value depends on ongoing patent prosecution, litigation, and the competitive development of similar compounds.

FAQs

Q1: What are the main limitations of patent CA3094693 for competitors?
A1: The patent's claims cover a specific chemical structure, formulations, and uses, which prevent identical copies and methods of treatment described. Competitors might develop alternative compounds outside the scope or with different structures.

Q2: How does the patent landscape influence future development?
A2: The crowded patent landscape means new filings must avoid existing claims, often requiring novel chemical modifications or innovative approaches to therapeutic uses.

Q3: Can this patent be challenged or invalidated?
A3: Yes, through prior art validation, inventive step arguments, or lack of novelty. Oppositions, especially in Europe, can challenge its validity.

Q4: What strategies are available to generic companies?
A4: Companies can pursue design-around strategies, focus on different chemical classes, or develop new therapeutic claims not covered under existing patents.

Q5: How does this patent compare with international protections?
A5: The patent family extends protection into key markets with filings in the US, Europe, and China, aligning with global patent strategies. It offers a comprehensive shield in major jurisdictions.


References

[1] Canadian Intellectual Property Office. (2022). Patent CA3094693. Retrieved from https://www.ic.gc.ca/opic-cipo/cpd/eng/patent/CA3094693/summary.html

[2] European Patent Office. (2022). Patent family analysis for CA3094693.

[3] WIPO. (2023). Patent family database.

[4] PatentScope. (2023). Patent litigation and citation data for similar compounds.

[5] USPTO. (2022). Patent application statuses and prior art references.

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