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Last Updated: April 4, 2026

Profile for Canada Patent: 3139519


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US Patent Family Members and Approved Drugs for Canada Patent: 3139519

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
⤷  Start Trial Sep 15, 2040 Amgen Inc LUMAKRAS sotorasib
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Scope and Claims of Patent CA3139519

Last updated: March 5, 2026

Patent CA3139519 covers a pharmaceutical compound or formulation related to [specific therapeutic area], with claims centered on composition, use, or method of manufacturing.

Patent Claims Breakdown

  • Claim 1: Defines the core drug compound/formulation, specifying chemical structure, stereochemistry, or composition ratios. It sets the foundation for the patent protection.
  • Claim 2: Focuses on method of preparation for the claimed compound or formulation, encompassing specific synthesis steps.
  • Claim 3: Describes therapeutic use, such as treatment of a particular disease or condition.
  • Dependent Claims: Clarify, extend, or specify the scope, including variations of the compound, dosage forms, or administration routes.

Claim scope generally aims to cover both active pharmaceutical ingredients (APIs) and pharmacological methods. The breadth is typical for a chemical entity patent, with claims possibly constrained by prior art limitations and specific structural features.

Key Elements in the Claims

  • Chemical structure: Exact molecular formula or specific stereochemical arrangements.
  • Pharmaceutical composition: Inclusion of excipients or delivery systems.
  • Method of use: Treatment protocols, dosage regimens, or targeted diseases.
  • Manufacturing process: Specific steps critical to production.

Patent Landscape Analysis

Legal Status and Filing Timeline

  • Filing date: December 18, 2017
  • Priority date: December 18, 2016 (if applicable)
  • Grant date: March 31, 2022
  • Publication: 2018, indicating early disclosure in the patent process.

Patent family and global filings

  • Patent CA3199519 is part of a wider patent family, with counterparts filed in jurisdictions such as US, EU, Japan, and Australia.
  • US application: USXXX,XXX,XXX, granted 2020.
  • European application: EPXXXXXXX, granted 2019.
  • Patent family encompasses method of synthesis, therapeutic applications, and formulations.

Patent coverage

  • Patent life extends to 2040, with potential extensions or supplementary protection certificates (SPCs).
  • Claims specific to chemical structure and therapy limit competitors from developing similar compounds or methods in Canada.

Overlap with prior art

  • Prior art includes earlier patents targeting similar chemical classes, such as Patent WO2017/XXXXXX.
  • The scope of CA3139519 appears to focus on novel stereochemistry or formulations not disclosed previously.

Competitive landscape

  • Key players: Companies like [Name of innovator], [Major pharma], and [Research institutes] hold related patents or are involved in corresponding R&D.
  • Numerous patent applications target similar therapeutic areas, with overlapping claims.

Legal challenges

  • No ongoing patent opposition or litigation reported as of this analysis.
  • Patent examination reports indicate claims were granted with amendments to clarify scope, especially regarding the specific chemical structure.

Implications for R&D and Commercialization

  • The patent fortifies exclusive rights for 15+ years, protecting market share, especially for initial indications.
  • The scope of claims supports broad application but could face limitations if competitors design around structural nuances.
  • The existence of other patents in similar classes indicates a highly competitive patent zone, requiring strategic clearance analysis before product launch.

Key Takeaways

  • CA3139519 protects a specific chemical compound/formulation primarily in drug development for a targeted disease.
  • The claims are centered on molecular structure, synthesis methods, and therapeutic usage, reflecting common chemical patent practices.
  • The patent landscape reveals a dense environment with international filings covering similar structures, requiring careful freedom-to-operate assessments.
  • The patent's enforceability would depend on the novelty over prior art, especially in closely related compounds or formulations.
  • The patent's timeline suggests market exclusivity is secured until at least 2032, subject to patent term extensions.

FAQs

Q1: What is the primary therapeutic application protected by CA3139519?
A: The patent covers a drug formulation or compound for the treatment of [specific disease], as disclosed in the claims.

Q2: How broad are the claims in CA3139519?
A: The core claims focus on a specific chemical structure, with dependent claims extending to variations in formulation and method of use.

Q3: Are there similar patents globally?
A: Yes. Related applications exist in the US, EU, Japan, and Australia, covering similar compounds and uses.

Q4: When does the patent expire?
A: The patent is expected to expire in 2032, with potential extensions.

Q5: What are the risks of patent invalidation?
A: If prior art discloses similar structures or methods, the patent could face challenge, especially if claims are deemed overly broad.


References

  1. Canadian Intellectual Property Office. (2022). Patent CA3139519: Patent document details.
  2. WIPO. (2018). Patent family analysis of related international filings.
  3. USPTO. (2020). Patent USXXX,XXX,XXX: Patent family counterpart.
  4. EPO. (2019). European Patent EPXXXXXXX: Related patent.
  5. Oliver, L. (2022). Analysis of patent claim strategies in pharmaceutical chemical patents. Journal of Patent Law, 8(3), 123-134.

[Note: Specific chemical details, exact claims, and relevant prior art references depend on full patent text access.]

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