What Is a Trademark Opposition? How to Respond When Someone Challenges Your Application
- May 14
- 11 min read
This blog is about "What is a trademark opposition?".
You filed your trademark application, waited months for it to work through the examination process, and finally received the notice you were waiting for: your mark has been approved and published in the USPTO’s Official Gazette. You are almost across the finish line. Then you receive word that another party has filed an opposition against your trademark application.
A trademark opposition is a formal legal proceeding in which a third party challenges your trademark application before it can be registered. It is not a rejection from the USPTO examiner — it is a challenge from another business or individual who believes that registering your mark would harm their existing trademark rights. And unlike an Office Action, which you address by responding to the examiner, an opposition is litigated before the Trademark Trial and Appeal Board, the administrative court inside the USPTO.
This article explains how trademark oppositions work, who can file one, what happens during the proceeding, and what your options are when you are on the receiving end of a Notice of Opposition.
If you received one, please reach out to our office so we can help you!
What Is the USPTO Official Gazette and Why Does It Matter?
After a trademark application passes examination, the USPTO publishes it in the “Official Gazette” — a weekly publication that serves as public notice that the mark has been approved by the examining attorney and is on track for registration.
Publication opens a 30-day window during which any party who believes they would be harmed by the registration can file an opposition with the Trademark Trial and Appeal Board (TTAB). Think of it as the USPTO asking the public: this mark has passed our review — does anyone with a legitimate stake object?
The 30-day window can be extended. A first extension of 30 days is available automatically upon request (no explanation required), bringing the deadline to 60 days from publication. A second extension of 60 days may be granted for good cause, and a final 60-day extension is available with the applicant’s written consent or in extraordinary circumstances. The maximum time to file an opposition cannot exceed 180 days from the date of publication. Extensions are commonly requested by large companies with active trademark monitoring programs.
Important: your trademark does not register during a pending opposition. You cannot use the ® symbol, and your nationwide rights are not yet secured. The application is effectively frozen until the opposition is resolved.
Who Can File a Trademark Opposition?
Under U.S. trademark law, any person who believes they would be damaged by the registration of a mark can file an opposition. In practice, oppositions are most commonly filed by:
Businesses that own existing registered or unregistered trademarks that are similar to the applicant’s mark
Companies in the same or adjacent industry who monitor the Official Gazette for potential conflicts
Owners of famous marks who believe the new mark could dilute or tarnish their brand
Any party with a legitimate commercial interest in preventing the registration
You do not need to have a federally registered trademark to file an opposition. Common law rights — rights that arise from actual use of a mark in commerce — are sufficient grounds to bring a challenge, provided you can demonstrate that you used your mark first and that registration would damage your rights.
The Most Common Grounds for a Trademark Opposition
The party filing an opposition (called the opposer) must state specific legal grounds for their challenge. The most frequently cited grounds are:
Likelihood of Confusion
By far the most common ground. The opposer argues that your mark is so similar to theirs — in appearance, sound, or meaning — and that the goods or services are so related, that consumers would likely confuse the two brands. This is the same analysis applied in a Section 2(d) refusal from an Office Action, except it is argued by a private party rather than an examiner, and the burden of proof falls on the opposer.
Priority of Use
The opposer claims they used the same or a confusingly similar mark in commerce before you filed your application, giving them superior priority rights. Under U.S. trademark law, rights belong to the first user in commerce — not necessarily the first to file. An opposer with earlier use can block a later-filed application even without a prior registration.
Descriptiveness or Failure to Function
The opposer argues that your mark is merely descriptive of the goods or services, or that it functions as a common expression rather than a brand identifier — and therefore should not be granted exclusive trademark protection that would prevent others in the industry from using the same language.
Dilution of a Famous Mark
Owners of famous, nationally recognized marks — think Nike, Apple, or Google — can oppose a new application on the grounds that it would dilute the distinctiveness of their mark or tarnish its reputation, even if consumer confusion is unlikely. Dilution claims are reserved for marks that have achieved a very high level of national recognition.
What Happens During a Trademark Opposition Proceeding?
Once a Notice of Opposition is filed, the TTAB assigns the case a proceeding number and issues a schedule that typically spans 12 to 18 months. The proceeding unfolds in several phases:
Filing the answer: The applicant (you) has 60 days from the institution order to file an answer either admitting or denying each allegation. Failure to answer results in a default judgment — your application is automatically abandoned.
Discovery: Both sides exchange information relevant to the dispute — documents, communications, evidence of use in commerce, consumer surveys, and expert reports. Each side can take depositions and submit written discovery requests.
Trial: There is no courtroom in a TTAB proceeding. Both sides submit testimony and evidence through written filings via the TTAB’s online system (TTABVUE), along with legal briefs arguing their position.
Decision: The TTAB issues a written decision sustaining the opposition (your application is refused) or dismissing it (your application moves to registration). Decisions can be appealed to federal district court or the U.S. Court of Appeals for the Federal Circuit.
How Long Does It Take? A fully contested TTAB opposition typically takes 1 to 3 years from filing to decision. Many cases settle before reaching the trial phase — sometimes within weeks or months of the opposition being filed. The earlier a settlement is reached, the lower the cost for both sides. |
Your Options When You Receive a Notice of Opposition
Receiving a Notice of Opposition is not the end of your trademark application — but it does require a prompt, deliberate response. You have four main paths.
Do Nothing (Abandon the Application)
If you do not file an answer within 60 days of the institution order, the TTAB enters a default judgment against you and the application is abandoned. Intentional abandonment is occasionally the right business decision — for example, if you have already decided to rebrand or if the cost of defending is not justified by the value of the mark. But it should be a deliberate choice, not an accident.
Negotiate a Settlement
The majority of trademark oppositions settle before reaching a full TTAB trial. Settlement options include a consent agreement (the opposer agrees in writing that your mark can coexist with theirs, with conditions on how each is used), a coexistence agreement (both parties define geographic or product boundaries to eliminate the risk of confusion), and amendments to your application — narrowing the goods or services listed, or making changes to the mark itself, to eliminate the basis for the opposition.
Settlement preserves both parties’ business interests without years of litigation costs, and the TTAB actively encourages parties to explore it.
Fight the Opposition at the TTAB
If the opposition is without merit — or if the opposer is overreaching — you can file an answer denying the allegations and proceed through the full TTAB process. A contested proceeding requires building an evidentiary record: proof of your use in commerce, evidence distinguishing your mark from theirs, and legal argument addressed to each ground the opposer raised.
This path requires significant attorney involvement and time, but it is the right path when your rights are legitimate and the opposition cannot be resolved through negotiation.
Amend Your Application
In some cases, narrowing your goods or services, changing how the mark is described, or making other targeted amendments can eliminate the basis for the opposition without full litigation. Your attorney can assess whether an amendment would resolve the conflict while preserving the commercial value of your mark.
How to Reduce the Risk of an Opposition Before It Happens
The best way to handle a trademark opposition is to avoid one in the first place. The most effective preventive steps are:
Conduct a comprehensive trademark search before you file. A thorough search of the USPTO database and common law sources identifies potential conflicts before you invest in an application — and before you build a brand around a mark that may face challenges.
File early. Your priority date is established when you file. The earlier you file, the earlier your rights, and the stronger your position in any priority dispute.
Monitor the Official Gazette for your own brand. If a competitor files a mark similar to yours, you need to know about it within the 30-day opposition window. Trademark monitoring services watch new USPTO filings and alert you to potential conflicts.
Choose a distinctive mark. Marks that are coined, arbitrary, or fanciful face far fewer opposition challenges than descriptive or suggestive marks, because there is less likelihood of confusion with existing marks in the marketplace.
Frequently Asked Questions About Trademark Oppositions
Is a trademark opposition the same as an Office Action?
No — they are completely different proceedings. An Office Action is issued by the USPTO examining attorney and identifies problems with your application from the USPTO’s perspective. A trademark opposition is a legal challenge filed by a third party — typically another business — claiming that your mark would harm their existing trademark rights. Office Actions are handled by responding to the examiner; oppositions are litigated before the Trademark Trial and Appeal Board.
How long do I have to respond to a trademark opposition?
Once a Notice of Opposition is filed and the TTAB issues an institution order, you have 60 days to file an answer. If you do not answer, the TTAB enters a default judgment against your application and it is abandoned. As of September 2025, the TTAB updated this deadline from 40 to 60 days to comply with international trademark treaty requirements. Contacting a trademark attorney immediately upon receiving a Notice of Opposition is strongly recommended.
Can I still use my brand while an opposition is pending?
Yes — you can continue to use your mark in commerce while an opposition is pending. What you cannot do is use the ® symbol, which is reserved for marks that have actually completed registration. Your application is frozen and cannot proceed to registration until the opposition is fully resolved.
How much does it cost to defend a trademark opposition?
Costs vary widely depending on how quickly the case resolves. Early settlements are significantly less expensive than a fully contested TTAB proceeding that runs through discovery, trial, and decision. This is one of the primary reasons both parties often have a strong incentive to explore settlement early in the process. An attorney can give you a realistic estimate based on the specific facts of your opposition.
Can I file a trademark opposition against someone else’s application?
Yes. If a new trademark application is published in the Official Gazette and you believe it would harm your existing trademark rights, you have 30 days from the publication date to file an opposition with the TTAB. Your attorney can monitor new USPTO publications through trademark watching services to alert you to potentially conflicting applications before the opposition window closes.
What is the Trademark Trial and Appeal Board (TTAB)?
The TTAB is the administrative court within the USPTO that handles trademark disputes, including both oppositions (challenges to pending applications) and cancellations (challenges to already-registered marks). Proceedings are conducted in writing through the USPTO’s online system rather than in a courtroom. TTAB decisions carry significant legal weight and can be appealed to federal district court or the U.S. Court of Appeals for the Federal Circuit.
What is the difference between a trademark opposition and a trademark cancellation?
The key difference is timing. An opposition is filed during the application process — after the mark is published in the Official Gazette but before it registers. A cancellation is filed after a trademark has already been registered, seeking to have the registration removed from the USPTO’s records. Both are handled by the TTAB, but cancellations face an additional burden: the petitioner must demonstrate standing and a valid statutory ground for cancelling an already-registered mark.
When Do You Need a Trademark Lawyer?
A trademark opposition is a formal legal proceeding with strict deadlines, complex evidentiary rules, and outcomes that can determine whether your brand is protected or not. The 40-day window to file an answer is not forgiving, and the strategic decisions made in the early stages — whether to fight, settle, or amend — can define the entire trajectory of the case.
At Brand Diplomacy, we represent business owners in trademark opposition proceedings before the TTAB, from the initial answer through settlement negotiations and, when necessary, through a fully contested trial. We also help clients file oppositions when a third party’s application threatens their existing trademark rights.
Our team provides complete trademark legal representation so you can focus on what matters most — growing your business with confidence.
To schedule an appointment with experienced trademark attorney Melissa Ramnauth, please visit our booking page by clicking here or call our office at (754) 800-4481. We look forward to assisting you!
Further Reading
This blog was about what a trademark opposition is.
Our team provides complete trademark legal representation so you can focus on what matters most—growing your business with confidence.
To schedule an appointment with experienced trademark attorney Melissa Ramnauth, please visit our booking page by clicking here or can call our office at (754) 800-4481. We look forward to assisting you!
Book a call now by clicking here or call our office at (754) 800-4481!
Legal Disclaimer
Your use of the content on this site or content from our email list is at your own risk. The use of this website does not create an attorney-client relationship. Brand Diplomacy does not guarantee any results from using this content and it is for educational purposes only. It is your responsibility to do your own research, consult, and obtain a professional for your medical, legal, financial, health, or other help that you may need for your situation.
The information on Brand Diplomacy is “as is” and makes no representations or warranties, express or implied, with respect to the content provided on this website or on any third-party website which may be accessed by a link from this Web site, including any representations or warranties as to accuracy, timeliness, or completeness. Brand Diplomacy will not be liable for any losses, injuries, or damages from the display or use of this information.
All information on this website is accurate and true to the best of Brand Diplomacy's knowledge, but there may be omissions, errors or mistakes. Brand Diplomacy is not liable for any damages due to any errors or omissions on the website, delay or denial of any products, failure of performance of any kind, interruption in the operation and your use of the website, website attacks including computer virus, hacking of information, and any other system failures or misuse of information or products.
Brand Diplomacy does not write sponsored posts or accept free products for review. All thoughts and opinions written by Brand Diplomacy is our own.
Brand Diplomacy welcomes comments on blog posts. All comments submitted to us are the opinions of the author and do not necessarily reflect or represent the views, policies, or positions of this site. We reserve the right to use our own discretion when determining whether or not to remove offensive comments or images.