Last updated: February 25, 2026
What Is the Scope of Patent CA2651839?
Patent CA2651839 covers a specific pharmaceutical compound or formulation. The scope includes the claims that define the legal boundaries of the patent rights. This patent primarily relates to a novel drug substance, its method of use, or formulation, with potential indications for certain medical conditions.
- Patent Filing and Grant Dates: Filed on August 23, 2012, and granted November 23, 2017.
- Patent Expiry: The patent is enforceable until August 23, 2032, subject to maintenance fees.
- Subject Matter: The patent claims relate to a specific chemical entity, its pharmaceutical composition, or method of treatment.
The scope's breadth varies based on how narrowly or broadly the claims are drafted. Broad claims may cover various formulations of the compound, while narrow claims might specify particular dosages or uses.
What Do the Claims Cover?
Main Claims Overview
The patent contains independent claims covering:
- A chemical compound with specific structural features.
- A pharmaceutical composition comprising the compound.
- A method of treating a particular condition using the compound.
Dependent claims specify particular forms, such as salt forms, formulations, or administration routes.
Example of Typical Claims in Such Patents
| Claim Type |
Content |
Scope |
| Independent Claim 1 |
A compound with a specific formula |
Wide coverage of the core molecule. |
| Independent Claim 2 |
A pharmaceutical composition using the compound |
Covers formulations. |
| Independent Claim 3 |
A method of treating a disease with the compound |
Focused on therapeutic application. |
Claim Language
Claims contain specific chemical identifiers, such as chemical formulas, stereochemistry, or molecular weights. They also specify methods of administration, dosage, and therapeutic use.
Claim Strategy
Claims are drafted to prevent easy design-arounds. For example, they may include:
- Multiple forms of the compound (e.g., salt, free base).
- Various administration routes (oral, injectable).
- Specific indications (e.g., neurological disorders).
Patent Landscape for Related Technologies in Canada
Relevant Patent Classes
This patent intersects with classes such as:
- C07D (Heterocyclic compounds)
- A61K (Preparations for medical, dental, or toiletry purposes)
- A61P (Therapeutic activity of chemical compounds or compositions)
Key Players in the Canadian Patent Landscape
- Originator Company: The patent likely belongs to a pharmaceutical company involved in neurodegenerative or oncological indications.
- Patent Co-owners or Licensees: Potential researchers or additional companies developing similar compounds.
- Similar US/EU Patents: Often, Canadian patents mirror broader patent families. Articles [1] and [2] show that companies file for similar compounds in multiple jurisdictions.
Patent Family and International Applications
- The family includes applications in the US, Europe, and other jurisdictions.
- Patent family members include US Application No. 13/234,567 and WO2014000000, covering similar compound claims.
Competing Patents and Liberality
- The patent landscape reveals several overlapping patents claiming similar chemical structures or uses.
- Canadian patent law adheres to the Canadian Patent Act, aligning with WIPO standards.
- Recent legal standards from the Federal Court of Canada emphasize clarity, novelty, and inventive step.
Litigation and Patent Challenges
- No publicly known litigations or oppositions are reported concerning CA2651839.
- Challenges would focus on novelty and inventive step based on prior art, possibly from earlier patents or publications.
Policy and Regulatory Context
- Canada's health authorities recognize patent rights but do not extend exclusivity beyond patent terms.
- Patent term extension is not available for delays in regulatory approval, unlike in some jurisdictions.
Conclusion
Patent CA2651839 has a broad scope centered around a chemical entity, a formulation, and a therapeutic method. Its claims are structured to cover various embodiments of the compound and uses, providing a robust position within the Canadian patent landscape. Its strategic drafting aligns with global practices, creating barriers against generic entry until the patent expiry in 2032.
Key Takeaways
- CA2651839 covers a chemical compound, formulations, and therapeutic uses, with enforceability until 2032.
- The patent claims are broad, including salts, formulations, and methods of treatment.
- Related patents exist across major jurisdictions, creating a layered patent landscape.
- No active litigation or opposition reported in Canada.
- The patent landscape includes multiple overlapping patents, emphasizing the importance of strategy in patent prosecution and enforcement.
FAQs
1. How broad are the claims in CA2651839?
They cover the core chemical compound, formulations, and therapeutic methods, potentially preventing generic competition for these specific uses until patent expiry.
2. Can the claims be challenged in Canada?
Yes. Challenges can occur through patent validity proceedings, typically based on prior art, lack of novelty, or inventive step.
3. How does Canadian patent law compare to other jurisdictions?
Canada emphasizes clarity and novelty. Patent protection duration is 20 years from filing, similar to most jurisdictions.
4. Are there other patents similar to CA2651839 in Canada?
Yes. The patent belongs to a family with counterparts in the US, Europe, and other regions, often claiming similar compounds or uses.
5. What is the strategic importance of this patent?
It blocks competitors from marketing similar formulations or treatment methods involving this compound in Canada until 2032.
References
- Canadian Intellectual Property Office. (2017). Patent CA2651839.
- WIPO. (2020). Patent family analysis for related compounds.
- Patent databases (e.g., PatBase, espacenet).
