Section 6 (Canada) — Likelihood of Confusion Explained

In Canada, a trademark can be refused, opposed, or invalidated if it is considered confusing with another trademark or trade name under Section 6 of the Trademarks Act. This article explains what “likelihood of confusion” means in Canadian trademark law, how it is assessed, and what factors are most important.

1. What does “confusion” mean under Section 6?

Section 6 sets out the Canadian legal test for confusion. In general, confusion exists when the use of two marks (or a mark and a trade name) in the same area would be likely to lead consumers to infer that the goods or services come from the same source (even if the goods or services are not identical).

Section 6 addresses multiple scenarios, including:

• Confusion between two trademarks
• Confusion between a trademark and a trade name
• Confusion between a trade name and a trademark

The analysis is not limited to whether consumers would believe the marks are identical. The key question is whether consumers would likely think the goods or services are associated with the same person or business.

2. The perspective: “casual consumer somewhat in a hurry”

Canadian confusion is assessed from the perspective of the ordinary consumer—often described by courts as the “casual consumer somewhat in a hurry”.

Important implications of this standard:

• The analysis focuses on first impression.
• The consumer is assumed to have an imperfect recollection of the earlier mark.
• The test does not assume a careful side-by-side comparison.

As a result, even sophisticated or expensive purchasing decisions do not automatically eliminate confusion risk. The legal question is what happens at the moment the consumer first encounters the mark in the marketplace.

3. “Same area” is a legal assumption

Section 6 uses a hypothetical approach: it asks whether confusion would be likely if the marks were used in the same area. This means:

• Actual geographic overlap is not always decisive.
• The focus is on consumer inference about source, not on proof that consumers have already been misled.

In practice, confusion can be found even if the businesses are currently operating in different regions, depending on the surrounding circumstances and how consumers would perceive the marks.

4. The required approach: “all surrounding circumstances” (Section 6(5))

Section 6(5) requires decision-makers to consider all surrounding circumstances. The Act lists five key factors that must be considered in every confusion analysis (but the list is not exhaustive):

6(5)(a) Inherent distinctiveness and extent known

• Inherent distinctiveness: How unique is the mark by nature? (e.g., coined words are usually stronger than descriptive terms.)
• Extent known: How well recognized is the mark in the marketplace? (e.g., reputation, marketing presence, consumer recognition.)

Generally, stronger and better-known marks are more likely to be protected against similar marks.

6(5)(b) Length of time in use

• How long has each mark been used?
• Longer use can support stronger marketplace recognition and strengthen the case for confusion.

6(5)(c) Nature of the goods, services, or business

• Are the goods/services related, complementary, or likely to be perceived as connected?
• Even if not identical, the question is whether consumers could believe they come from the same source.

6(5)(d) Nature of the trade

• How are the goods/services sold or delivered (channels of trade)?
• Who are the customers and where do purchases happen (online, retail, B2B, etc.)?

Overlapping channels and audiences tend to increase confusion risk.

6(5)(e) Degree of resemblance

This factor evaluates resemblance in:

• Appearance
• Sound
• Ideas suggested

Resemblance is assessed by considering the marks as a whole and focusing on the consumer’s first impression. In many cases, resemblance is treated as a particularly important factor because it strongly shapes consumer perception.

5. Additional surrounding circumstances (not limited to the five factors)

Because Section 6(5) requires consideration of “all surrounding circumstances,” other factors may also matter, depending on the case. Examples include:

• Evidence of actual confusion (helpful, but not required)
• Fame or strong reputation of the earlier mark
• The presence of a family of marks or consistent branding patterns
• Coexistence history (when supported by evidence and context)

6. Where confusion matters in Canadian trademark practice

Likelihood of confusion under Section 6 commonly appears in:

• Trademark examination (CIPO objections based on prior marks)
• Oppositions (third parties opposing an application)
• Invalidity / expungement actions (challenging an existing registration)
• Enforcement disputes (infringement, passing off, and related claims)

7. Practical tips to reduce confusion risk before filing

• Choose distinctive marks (coined, arbitrary, or suggestive terms tend to be safer).
• Avoid crowded terms in your industry (descriptive/common terms increase coexistence and uncertainty).
• Check resemblance broadly: look for similar appearance, sound, and meaning—not just exact matches.
• Consider goods/services scope: narrower and more precise descriptions can reduce overlap risk.
• Think about trade channels: online sales often broaden exposure and overlap.

8. Key takeaway

Under Section 6, confusion is a consumer-perception test based on first impression and assessed using all surrounding circumstances, including the five statutory factors in Section 6(5). A strong Canadian trademark strategy starts by evaluating confusion risk early—before filing, branding, or expanding into new goods/services.

This article is for general informational purposes and is not legal advice.