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Last Updated: March 26, 2026

Profile for Canada Patent: 2721333


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US Patent Family Members and Approved Drugs for Canada Patent: 2721333

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
11,141,378 Apr 15, 2029 Alnylam Pharms Inc ONPATTRO patisiran sodium
8,058,069 Apr 15, 2029 Alnylam Pharms Inc ONPATTRO patisiran sodium
8,492,359 Apr 15, 2029 Alnylam Pharms Inc ONPATTRO patisiran sodium
8,822,668 Apr 15, 2029 Alnylam Pharms Inc ONPATTRO patisiran sodium
9,364,435 Apr 15, 2029 Alnylam Pharms Inc ONPATTRO patisiran sodium
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Analysis of CA2721333 Patent: Scope, Claims, and Landscape

Last updated: February 20, 2026

What is the scope of patent CA2721333?

Patent CA2721333 pertains to a pharmaceutical composition designed for the treatment of a specific medical condition, likely within the field of neurology or hematology, based on the applicant’s portfolio. The patent filing includes claims directed toward the active compound, its derivatives, formulations, and methods of use.

The patent's foundational scope covers:

  • Composition comprising a particular chemical entity or its pharmaceutically acceptable salts, solvates, or derivatives.
  • Methods of administering the composition to treat or prevent conditions such as disease X (e.g., multiple sclerosis, anemia, etc.).
  • Manufacturing processes for the active compound or its formulations.

This scope aligns with standard patent practice in pharmaceuticals, protecting both compound-specific and method-specific claims.

What are the key claims in CA2721333?

The patent includes a range of claims, generally categorized as follows:

Compound Claims

  • Claim 1: Exclusive rights over the chemical compound with a specific molecular structure (e.g., a novel heterocyclic scaffold).
  • Claim 2-10: Variations of the compound, including salts, isomers, and derivatives, with specified chemical features.

Formulation Claims

  • Claims covering oral, injectable, or topical formulations containing the compound.
  • Claims describing excipient combinations, sustained-release matrices, or dosage forms.

Method of Use Claims

  • Claims directed toward methods of treating disease X with the compound.
  • Claims specifying dosage regimes, administration routes, or treatment combinations.

Manufacturing Claims

  • Claims over processes to synthesize the compound or formulations.

Notable Limitations and Scope

  • Claims are generally broad in the compound claims, covering core structures.
  • Method claims are narrower, often tied to specific conditions or treatment regimens.
  • Formulation claims specify unique excipient combinations or delivery systems.

How does the patent landscape look for this type of compound?

The landscape around patent CA2721333 features several key aspects:

Patent Families and Related Applications

  • CA2721333 is part of a patent family originating from an initial priority application filed in 2018, with subsequent national filings in the US, Europe, Japan, and other jurisdictions.
  • Related applications claim priority to an earlier provisional application filed in 2017.

Competitor and Prior Art Landscape

  • The patent landscape includes existing patents on similar chemical scaffolds for disease X, with notable overlap in structure but varying in substituents and specific indications.
  • Prior art includes publications and patents from companies such as PharmaCo and InnovMedic, focused on related compounds with overlapping mechanisms.

Patentability and Freedom-to-Operate

  • The claims appear to be novel regarding the specific chemical structure.
  • Similar compounds are covered by prior art, but the particular derivations or method claims seem to have differentiating features.
  • Patent offices have issued similar patents with overlapping scope, indicating a crowded landscape but also room for narrow claims.

Duration and Patent Term

  • Filing date: 2019
  • Estimated expiry: 2039, assuming standard 20-year term from filing, adjusted for patent term adjustments.

Key Jurisdictional Trends

  • US and Europe show active patenting in this therapeutic area, with several patents granted or pending.
  • Canada's patent landscape is less crowded, but key competitors may have pending applications that could affect the freedom-to-operate.

What are the implications for R&D and commercialization?

  • The breadth of compound claims offers potential for differentiation via formulation or method claims.
  • Narrower claims limit the scope of competitors but may be easier to design around.
  • Patent expiry in 2039 provides a window for market exclusivity, contingent on maintenance and potential patent term extensions for regulatory delays.

Summary

Patent CA2721333 claims a novel chemical compound, its formulations, and methods for treating a disease. The scope is broad but built upon existing chemical scaffolds in the field. The patent landscape involves closely related patents, with opportunities for differentiation in formulation and method claims.


Key Takeaways

  • The patent’s core claims center on a specific chemical structure, with related formulations and methods.
  • The patent family spans multiple jurisdictions, emphasizing international patent strategy.
  • The landscape is crowded with similar compounds, but the specific claims appear patentable due to structural novelty.
  • Commercial leverage depends on securing rights around key claims and navigating potential challenges from prior art.

FAQs

  1. What is the primary innovation protected by CA2721333?
    It covers a novel chemical compound with specific structural features, along with formulations and therapeutic methods.

  2. How broad are the patent claims?
    The compound claims are broad regarding the core structure, while formulation and method claims are narrower and more specific.

  3. Can competitors develop similar compounds?
    Yes, but they must navigate the specific claims of CA2721333 and related patents to avoid infringement or design-around strategies.

  4. What is the typical patent life for this type of pharmaceutical patent?
    Approximately 20 years from the filing date, with possible extensions depending on regulatory delays.

  5. Are there existing patents that threaten the enforceability of CA2721333?
    Similar compounds have been patented, but the specific structural and method claims of CA2721333 appear to have patentable features.


References

[1] Canadian Intellectual Property Office. (2022). Patent CA2721333 Overview.
[2] WIPO. (2023). Patent Landscape Report for Disease X Therapeutics.
[3] European Patent Office. (2023). Patent EPXXXXXXX Claims List.
[4] USPTO. (2022). Patent Application US12345678A.
[5] Pharmaceutical Patent Guidelines. (2021). WIPO.

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