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Patent law 2025 FCA 76

Canadian Energy Services L.P. v. Secure Energy (Drilling Services) Inc.

The Federal Court did not err in finding Levey to be the sole true inventor and that Secure holds title to the invention; declaratory relief under Rule 64 was properly characterized as public/declaratory (not remedial) and therefore not barred by limitations or discharged by the 2007 release; although the Federal Court incorrectly treated chain of title as res judicata from Secure FC 2021, Secure nonetheless proved chain of title from Genesis to Secure via corporate succession and the 2012 Asset Purchase Agreement; accordingly the appeal is dismissed.

  • Inventorship
  • Ownership of patent
  • Section 52 patent act
  • Declaratory relief vs remedial relief
  • Chain of title
  • Abuse of process
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Intellectual property 2025 FC 27

Sea Two v C-Town

The Federal Court found C-Tow had prior use of the C-Tow marks, Sea Tow knew of that use before adopting its marks, and Sea Tow’s registrations were invalid in part.

  • Trademark registration
  • Incontestability
  • Distinctiveness
  • Bad faith
  • Confusion
  • Chain of title
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Property law 2019 BCSC 292

Allen v. British Columbia (Attorney General)

The court granted Elizabeth Allen a declaration of title to unregistered ranch fractions after finding, on a balance of probabilities, that a Dominion grant was issued in 1921.

  • Land title inquiry act
  • Dominion crown grants
  • Railway belt land transfer
  • Quieting title
  • Chain of title
  • Land-title-inquiry-act
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Tax law 2017 FC 371

Biles Estate v. Canada (National Revenue)

The Federal Court dismissed two judicial review applications by the Estate of Newton D. Biles, finding no jurisdiction over notice-of-objection issues and no basis to compel reassessment.

  • Reassessment
  • Extension of time
  • Notice of objection
  • Mandamus
  • Fettering of discretion
  • Deemed disposition
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Property law 2016 NSCA 56

Naugle v. Cleary

The trial judge committed an error of law by elevating the estate inventory into the chain of title and unduly relying on it to discredit the appellant’s paper title; that error was material and sufficient to set aside the decision and order a new trial. The trial judge's interpretation of Rule 55.13 restricting direct examination of experts was appropriate and is not overturned.

  • Quieting titles
  • Certificate of title
  • Chain of title
  • Expert evidence
  • Estate inventory
  • Standard of review
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Real property 2014 NSSC 48

Dawn v. Nova Scotia (Attorney General)

The court preferred Hall's comprehensive survey and deed analysis (supported by on‑the‑ground monuments such as stone walls and fences and Crown grant mapping) over Ashley's retracement; on that basis the Province and the Mannettes have the superior paper chain of title and the Murphys have established adverse possessory title, therefore Dawn failed to prove entitlement to the disputed land and has no registered or possessory interest in the identified PIDs.

  • Quieting titles act
  • Marketable titles act s.4a
  • Interpretation of deeds
  • Surveyor expert evidence
  • Chain of title
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Property 2013 NSCA 31

MacDuff v. 3209292 Nova Scotia Ltd.

The Court affirmed the trial judge's conclusion that Number Co. had the superior chain of title: the 1825 Chamberlain plan and subsequent deeds clearly conveyed the five dower lots (including the Island) to Number Co.'s predecessors, the MacDuffs' survey and title abstract were flawed and failed to engage Number Co.'s chain, the proposed fresh evidence did not meet Palmer criteria and was inadmissible, and no error of law or palpable and overriding factual error was shown; accordingly the appeal was dismissed and costs awarded to the respondent.

  • Title dispute
  • Chain of title
  • Deed interpretation
  • Survey evidence
  • Fresh evidence application
  • Adverse possession
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Property law 2011 NSSC 363

3209292 Nova Scotia Ltd. v. MacDuff

On the balance of probabilities the plaintiff has the better chain of title because the defendants' Title Abstract and Myra survey contain fundamental inconsistencies and unexplained measurements incompatible with the underlying deeds, whereas the plaintiff's Nutter survey reasonably overlays the historic 1823 survey; therefore the defendants have no interest in the Island identified by PIDs 41257262, 41257270 and 41257288.

  • Chain of title
  • Interpretation of deeds
  • Surveys and title abstracts
  • Expert evidence
  • Costs
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Intellectual property 2009 FC 260

Bauer Hockey corp. v. Therma Blade Inc.

The Federal Court disqualified Brouillette & Partners LLP from acting for Therma Blade after finding a prior retainer gave rise to relevant confidential information and a risk of prejudice to Bauer.

  • Conflict of interest
  • Disqualification of counsel
  • Confidential information
  • Chain of title
  • Attorney-client privilege
  • Conflict-of-interest
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Canada decisions are organised by court, judge, legal area and indexed issue so a practitioner can move from a proposition to a citable authority with the surrounding context intact.