How to Respond to a Section 2(d) Office Action: A Step-by-Step Guide
You just opened an Office Action. The examiner cited Section 2(d). Your client's application is refused based on "likelihood of confusion" with a prior registered mark.
By Howard KatzenbergPractical guidance for trademark practitioners
Updated October 12, 2026
You just opened an Office Action. The examiner cited Section 2(d). Your client's application is refused based on "likelihood of confusion" with a prior registered mark.
This guide walks you through a systematic approach to responding to Section 2(d) refusals. You'll learn the main arguments and when each one fits, how to structure your response, and how to avoid the mistakes that sink otherwise strong applications.
Understanding What the Examiner Is Actually Saying
A Section 2(d) refusal means the examining attorney believes your mark, when used with your identified goods/services, so resembles a registered mark that it's likely to cause confusion among consumers.
The examiner applied the DuPont factors—a 13-factor test established in In re E.I. DuPont DeNemours & Co., 476 F.2d 1357 (CCPA 1973). Not all factors apply to every case, and any single factor may control a particular case. (If the underlying refusal is descriptiveness rather than 2(d), see our descriptiveness refusal playbook.) The two most important factors:
- Similarity of the marks (in appearance, sound, connotation, and commercial impression)
- Relatedness of the goods/services
The examiner's job is to err on the side of protection. Your job is to show why confusion is unlikely despite surface-level similarities.
For more on how the DuPont factors work in practice, see our DuPont factors guide.
Step 1: Analyze the Cited Mark—Before You Write a Word
Pull up the cited registration on our trademark database or the USPTO Trademark Search. Answer these questions:
Is the cited mark actually live?
Check the status. If it's abandoned, cancelled, or expired, you may have an immediate win.
What to check:
- Status on USPTO TSDR
- Last maintenance filing date
- Whether the owner met the most recent Section 8 or Section 9 deadline
If the mark is dead — abandoned, cancelled, or expired through Section 8 maintenance lapse — your argument is straightforward: only an active registration can support a Section 2(d) refusal. Cite TMEP §§ 1207.01 and 716.02(e) and provide evidence of the cancellation, expiration or abandonment.
What goods/services does it actually cover?
Read the ID of goods/services carefully. Don't assume relatedness based on the mark alone. Examiners sometimes cite marks with only tangential overlap.
What to look for:
- Specific limitations in the ID (e.g., "for use with X" or "excluding Y")
- Overlapping language that's actually describing different products
Example: An examiner might cite a mark registered for "software for managing employee schedules" against your application for "software for tracking customer appointments." Both are software, but the end users and use cases are entirely distinct.
How similar are the marks, really?
Strip away the examiner's comparison and look objectively:
- Appearance: Are they visually similar, or does font/design create a different impression?
- Sound: Do they sound alike when spoken? (This matters more in some industries than others)
- Connotation: Do they suggest the same concept, or are they completely different ideas?
- Commercial impression: Would a consumer see them as related, or as competitors?
The examiner has already concluded they're similar. Your job is to find the distinguishing features the examiner underweighted.
Does the cited mark have a consent history?
Search for the cited mark's serial number on TSDR and check its prosecution history. Sometimes marks have already coexisted with similar marks via consent agreements. This is powerful evidence that the mark is not as strong as the examiner assumes.
You can also check for third-party registrations of similar marks for the same or similar goods/services. If the register is crowded with variants, the cited mark is weaker—and less entitled to protection.
Step 2: Choose Your Strategy
The main strategies are detailed below.
Consent Agreement
If you can get the owner of the cited mark to agree in writing that there's no likelihood of confusion, examiners give that agreement substantial weight, especially when it explains why confusion is unlikely and what both sides will do to avoid it. A bare "naked" consent carries little weight.
When it works:
- The cited mark owner is reachable and cooperative
- You can demonstrate coexistence without confusion (e.g., you've been using the mark for years without issues)
- The goods/services are complementary, not competitive
How to do it:
- Find the owner's contact info via TSDR (look for the correspondence address)
- Draft a consent agreement (there are templates, but customize to your facts)
- Explain why coexistence benefits both parties (or why there's no real conflict)
- File the signed agreement with your Office Action response
Pro tip: Consent agreements work best when you can show the other party that your use doesn't threaten their brand. If you're in different markets or customer segments, emphasize that.
Class Deletion
If your application covers multiple classes and the conflict is limited to one class, deleting that class resolves the refusal.
When it works:
- Your client doesn't actually need protection in the conflicting class
- The other classes are more important to the business
- The cost of fighting the refusal exceeds the value of the dropped class
Example: You file for "software" in Class 9 and "consulting services" in Class 35. The examiner cites a mark in Class 9 only. If your client's revenue is 90% consulting, delete Class 9 and move forward.
How to do it: File a request to divide the application (if needed) or simply amend to delete the conflicting class.
Cited Mark Abandoned
If the cited mark is dead, your path is clear.
What counts as abandoned:
- Mark is listed as "Abandoned" or "Cancelled" on TSDR
- Owner failed to file the Section 8 declaration or Section 9 renewal by the end of the grace period
- Registration expired because it was not renewed (renewal terms are 10 years)
How to argue it:
- Provide evidence from TSDR showing the abandonment date
- Point out that only an active registration can support a Section 2(d) refusal (TMEP § 1207.01; see also TMEP § 716.02(e))
- Request withdrawal of the refusal based on non-existence of the cited mark
Common mistake: Don't just say "the mark is abandoned"—attach proof. Examiners want to see TSDR printouts or declaration dates.
Commercial Impression
Even if the marks are visually or phonetically similar, they may create entirely different commercial impressions.
When it works:
- Marks suggest different concepts (e.g., "Delta" for airlines vs. "Delta" for faucets)
- Design elements or stylization create distinct impressions
- The overall "feel" of the marks is different despite surface similarity
How to argue it:
- Describe the connotation of each mark
- Explain how consumers perceive each mark in context
- Cite case law on commercial impression (e.g., In re Chatam Int'l Inc., 380 F.3d 1340 (Fed. Cir. 2004))
Example: "BLUEBIRD" for financial services vs. "BLUEBIRD" for children's toys. Both use the same word, but the commercial impression—serious vs. playful—differs dramatically.
Goods/Services Coexistence
This is a common argument: the goods/services are not related in a way that would make consumers think they come from the same source. Showing that they don't compete is not enough on its own.
When it works:
- Different end users stated in the IDs (e.g., B2B software vs. consumer software)
- Different distribution channels written into the IDs (e.g., high-end boutiques vs. mass-market retail)
- Different use cases (e.g., "software for architects" vs. "software for accountants")
How to argue it:
- Compare the IDs side by side
- Highlight limitations and distinctions
- Explain how the products/services serve different markets
- Cite DuPont factor: relatedness of goods/services
Third-Party Registrations
If the register is crowded with similar marks, the cited mark is entitled to a narrower scope of protection.
When it works:
- You find 5+ third-party registrations with similar elements
- The marks coexist for the same or similar goods/services
- The cited mark is not particularly distinctive
How to do it:
- Search the USPTO Trademark Search for marks with the same or similar terms
- Print registrations that show coexistence
- Argue that the cited mark is weak and consumers are accustomed to distinguishing among similar marks
Example: If you're fighting a refusal based on "SUMMIT" for financial services, and you find 10 other "SUMMIT"-formative marks in Class 36, that's strong evidence of mark weakness.
Cite: In re E.I. DuPont, 476 F.2d at 1361 (third-party use is relevant to mark strength and consumer recognition).
Weakness of Cited Mark
If the cited mark is descriptive or highly suggestive, it's entitled to less protection.
When it works:
- The cited mark describes a feature of the goods/services
- The mark is a common term or phrase
- There's evidence of third-party use of the same term
How to argue it:
- Show that the mark is descriptive or suggestive (cite dictionary definitions, industry usage)
- Provide evidence of third-party use (websites, advertisements, other registrations)
- Argue that the mark's scope of protection is narrow
Example: "CLOUD" for cloud computing services is highly suggestive. If the examiner cites a "CLOUD"-formative mark, argue that the term is widely used and consumers can distinguish among variants.
Cite: Palm Bay Imps., Inc. v. Veuve Clicquot Ponsardin Maison Fondee en 1772, 396 F.3d 1369, 1373-74 (Fed. Cir. 2005) (evidence of third-party use may show a mark "is relatively weak and entitled to only a narrow scope of protection").
Step 3: Build Your Argument—Practical Tips
Once you've chosen your primary strategy, strengthen it with these tactics:
Use precise comparisons
Don't just assert differences—show them. Create a side-by-side comparison:
| Factor | Applicant Mark | Cited Mark |
|---|---|---|
| Visual appearance | [Describe] | [Describe] |
| Sound/pronunciation | [Describe] | [Describe] |
| Meaning/connotation | [Describe] | [Describe] |
| Commercial impression | [Describe] | [Describe] |
This forces the examiner to see the differences on paper.
Cite DuPont factors explicitly
Don't make the examiner guess which factors you're addressing. Say it outright:
"With respect to DuPont factor 2 (similarity of goods/services), Applicant's goods are distinct from the cited mark's goods in the following ways..."
Use evidence, not argument
The strongest responses are evidence-heavy:
- Screenshots of the cited mark in use (to show commercial impression)
- Third-party registrations (to show crowded register)
- Dictionary definitions (to show meaning differences)
- Industry publications (to show distinct markets or channels)
Address the examiner's specific points
The Office Action will explain why the examiner found confusion likely. Don't write a generic response—address each point.
If the examiner said, "Both marks include the term 'PEAK' and are used in connection with outdoor recreation," your response should tackle both elements:
- Explain why "PEAK" is weak in the outdoor industry (third-party use)
- Show that your goods (e.g., hiking boots) are distinct from the cited mark's goods (e.g., camping tents)
Don't overargue
More is not better. Pick 2-3 strong arguments and develop them fully. A scattershot response ("the marks are different AND the goods are different AND consumers are sophisticated AND...") signals desperation.
Focus on your best argument and support it with evidence.
Step 4: Structure Your Response
A well-organized response makes the examiner's job easier—and increases your chances of success.
Suggested structure:
I. Introduction
- Thank the examiner for their review
- State that you're respectfully traversing the Section 2(d) refusal
- Briefly preview your argument (1-2 sentences)
II. Background
- Describe your mark and goods/services
- Describe the cited mark and goods/services
- Acknowledge the examiner's concerns
III. Legal Standard
- Briefly summarize the DuPont test
- Note that not every factor is relevant in every case
- State which factors are most relevant to this case
IV. Argument
- Primary argument (e.g., goods/services coexistence)
- Evidence
- Analysis
- Citation to DuPont factor(s)
- Secondary argument (if applicable)
- Evidence
- Analysis
V. Conclusion
- Summarize why confusion is unlikely
- Request withdrawal of the refusal and approval for publication
Attachments:
- Third-party registrations
- Consent agreement (if applicable)
- Evidence of cited mark abandonment
- Dictionary definitions, screenshots, etc.
Length: Quality over quantity
Some responses succeed in 3 pages. Others require 15 pages. Don't pad—but don't skimp on evidence.
Aim for 8-12 pages with exhibits. Shorter if your argument is straightforward (e.g., cited mark abandoned). Longer if you're making multiple arguments or the case is complex.
Common Mistakes to Avoid
Mistake 1: Ignoring the examiner's rationale
The examiner explained their reasoning in the Office Action. If you don't address it, you're talking past each other.
Fix: Quote the examiner's language and respond directly.
Mistake 2: Arguing facts not in evidence
Don't claim "consumers are sophisticated" without proof. Don't say "our mark is famous" without evidence.
Fix: Use market surveys, sales data, customer demographics, or industry publications to support factual claims.
Mistake 3: Attacking the cited mark owner
It's not the owner's fault the examiner cited their mark. Avoid language like "the cited mark is weak and shouldn't have been registered."
Fix: Focus on coexistence, not blame. Frame it as "both marks can coexist without confusion."
Mistake 4: Missing the deadline
You have 3 months from the issue date to respond (6 months for Madrid Protocol applications under Section 66(a)). Miss it, and the application is abandoned.
Fix: Calendar the deadline immediately. If you need more time, request one 3-month extension ($125) before the deadline (37 C.F.R. § 2.62(a)(2); TMEP § 711). Section 66(a) applications cannot be extended.
Mistake 5: Amending the mark to avoid confusion
You generally cannot amend a mark to make it "less similar" to the cited mark. A change that alters the mark's overall impression is a "material alteration," which the rules prohibit (37 C.F.R. § 2.72), so it requires a new application.
Fix: Work with the mark as filed. If the mark truly can't proceed, advise the client to file a new application with a different mark.
Mistake 6: Over-relying on intent-to-use status
Some attorneys argue, "We're not using the mark yet, so there's no actual confusion." This doesn't matter. The USPTO examines based on potential confusion, not actual use.
Fix: Focus on DuPont factors, not your basis for filing.
When to Consider Alternatives
Not every refusal is worth fighting. Here's when to consider other paths:
Amend your goods/services
When: You can narrow your ID to eliminate overlap with the cited mark.
Benefit: Preserves your mark on the Principal Register.
Trade-off: You lose coverage for certain goods/services.
Request a consent agreement
When: You have a relationship with the cited mark owner or can demonstrate non-competitive use.
Benefit: A detailed consent agreement carries substantial weight with the examiner.
Trade-off: Requires cooperation from a third party.
Abandon and refile with a different mark
When: The mark is inherently confusing and no argument will work.
Benefit: Avoids wasting time on an unwinnable case.
Trade-off: You lose your filing date and application fees.
Red flags for abandonment:
- Near-identical marks
- Highly related goods/services
- Strong cited mark with extensive use
- No credible distinction argument
How GleanMark Can Help
GleanMark's AI-powered Office Action drafting tool automates the research phase:
- Analysis of the cited mark (status and goods/services)
- Automated third-party registration search (finds other registered marks that share the cited term)
- Strategy recommendations for each refusal
- Draft argument sections pre-populated with case citations and DuPont factor analysis
You still review and refine—but the heavy lifting is done.
Want to see it in action? Search our trademark database or run a knockout search to see how our tools work.
Final Thoughts: Strategy Over Volume
Focus on 2-3 strong arguments backed by evidence. Don't throw everything at the wall—10 weak arguments instead of 2 strong ones.
Choose your strategy based on the facts. Build your case with evidence, not assertion.
And remember: the examiner is not your adversary. They're applying a legal standard to protect the public from confusion. Your job is to show them—clearly, respectfully, and convincingly—why confusion is unlikely in this specific case.
You're not starting over—you're navigating a detour. With the right strategy, you'll get there.
For more on these strategies, see our guide to overcoming Section 2(d) refusals. To understand how the examiner evaluates likelihood of confusion, read our DuPont factors guide.
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