Likelihood of Confusion Explained: Why Similar Trademarks Can Be Refused (Section 2(d))

1. What is a Section 2(d) refusal?

A Section 2(d) refusal is issued when the United States Patent and Trademark Office (USPTO) believes that a trademark is too similar to an earlier trademark, and that consumers are likely to be confused about the source of the goods or services.

In simple terms, the USPTO refuses registration if it thinks that:

• Consumers might believe the trademarks come from the same company, or
• One company is associated with, sponsored by, or affiliated with the other.

Importantly, the USPTO focuses on consumer perception, not on whether the applicant intended to copy another trademark.

2. Do trademarks have to be identical to conflict?

No. Trademarks do not need to be identical to be refused under Section 2(d).

The legal standard is similarity, not exact matching. A refusal may occur if trademarks are similar enough in:

• Appearance
• Sound
• Meaning
• Overall commercial impression

If an average consumer could reasonably assume that the goods or services come from the same source, a likelihood of confusion may exist.

Differences in spelling, formatting, word order, or minor additions are often not sufficient to avoid a conflict when the overall impression remains similar.

3. What does “goods and services overlap” mean?

When evaluating likelihood of confusion, the USPTO compares not only the trademarks, but also the goods and services they cover.

Goods and services overlap when:

• The trademarks cover identical goods or services, or
• The goods or services are closely related, target similar customers, or are offered through similar channels.

Why this matters:

• Identical goods or services create the highest risk of refusal.
• Even if the trademarks are only moderately similar, identical goods can still lead to a Section 2(d) refusal.
• Very different goods or services may reduce confusion risk, even when trademarks are similar.

This is why your analysis may state: Goods/Services Overlap: Identical goods. In such cases, the USPTO assumes consumers are more likely to believe the trademarks come from the same company.

4. How does the USPTO compare trademarks?

When analyzing a potential conflict under Section 2(d), the USPTO does not compare trademarks side by side in a vacuum. Instead, it evaluates the overall commercial impression of each mark.

The USPTO considers multiple aspects, including:

• Appearance: How the trademarks look when written or displayed
• Sound: How the trademarks are pronounced
• Meaning: What the trademarks convey conceptually
• Overall impression: The combined effect on consumers

Even if trademarks differ in spelling, formatting, or minor wording, they may still be considered similar if they create a comparable overall impression.

5. Why do descriptive or common words still matter?

Many trademarks include descriptive or commonly used words, especially in crowded industries. While these elements are considered weaker, they are not ignored.

In likelihood-of-confusion analysis:

• Shared descriptive terms are given less weight, but
• They still contribute to the overall similarity of the marks.

If two trademarks share the same dominant wording and are used for identical or closely related goods or services, the USPTO may still find a likelihood of confusion—particularly when there are few meaningful differences between the marks.

This is why descriptive trademarks often coexist with similar marks, but still face risk when the similarities are strong and the goods or services overlap.

6. What consumers are assumed to think

The USPTO evaluates trademarks from the perspective of an ordinary consumer, not a trademark expert.

Key assumptions include:

• Consumers do not analyze trademarks carefully
• Consumers may rely on imperfect memory
• Consumers may encounter trademarks separately, not side by side

The question the USPTO asks is not whether confusion is guaranteed, but whether confusion is reasonably likely. If an average consumer might assume that two similar trademarks used on related goods come from the same source, a Section 2(d) refusal may apply.

7. Common Section 2(d) conflict scenarios

Certain situations make a likelihood-of-confusion refusal more likely. The USPTO frequently raises Section 2(d) concerns in the following scenarios:

• Identical goods or services with similar trademarks
• Closely related services offered to the same type of customers
• Different spelling or formatting, but the same pronunciation
• Different words with the same meaning or commercial impression
• Minor additions or deletions that do not change how consumers perceive the mark

These scenarios do not require intentional copying. They arise simply because trademarks operate in the same commercial space and could be perceived as related.

8. Can a trademark be refused even if similar marks already exist?

Yes. The existence of similar trademarks does not guarantee approval.

Trademark examination is conducted:

• On a case-by-case basis
• Based on the specific earlier marks cited by the examiner
• With greater weight given to earlier registrations than later ones

Even if multiple similar trademarks coexist in the marketplace, the USPTO may still refuse a new application if it believes consumers are likely to associate it with a particular earlier trademark.

In other words, coexistence in practice does not automatically mean coexistence in registration.

9. How strong is a Section 2(d) refusal?

Not all Section 2(d) issues carry the same level of risk. The strength of a refusal generally depends on:

• How similar the trademarks are overall
• Whether the goods or services are identical or merely related
• The distinctiveness of the earlier trademark

General guidance:

• Identical goods + very similar marks → High risk
• Related goods + moderate similarity → Medium risk
• Distant goods + shared common wording → Lower risk

Some Section 2(d) refusals can be addressed through legal arguments, narrowing the description of goods or services, or obtaining consent from the owner of the earlier trademark. Others are difficult or impractical to overcome.

This is why identifying Section 2(d) risks early helps users make more informed filing decisions.

10. What can be done if a Section 2(d) risk is identified?

Identifying a Section 2(d) risk does not automatically mean that a trademark cannot be registered. The appropriate response depends on the strength of the conflict and the business goals of the applicant.

Possible options may include:

• Reconsidering the trademark if the conflict risk is high
• Narrowing or clarifying the goods or services to reduce overlap
• Adjusting the trademark to create a more distinct overall impression
• Proceeding with awareness of the potential refusal
• Seeking legal advice to evaluate possible responses or strategies

Some Section 2(d) issues can be addressed with careful planning, while others may present significant obstacles that are difficult to overcome.

11. Summary: Understanding likelihood of confusion

A Section 2(d) likelihood-of-confusion issue arises when the USPTO believes that consumers may mistakenly assume that two similar trademarks used on related goods or services come from the same source.

Key points to remember:

• Trademarks do not need to be identical to conflict
• Identical or closely related goods significantly increase risk
• Descriptive or common wording often leads to crowded trademark fields
• Each application is examined individually based on earlier trademarks

Understanding Section 2(d) helps applicants make informed decisions before filing and reduces the risk of unexpected refusals during the registration process.