Trademark opposition is a legal proceeding that allows third parties to challenge a trademark registration.
This crucial step in the trademark registration process ensures that existing trademark rights are protected and prevents potentially conflicting marks from reaching the principal register.

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Introduction to Trademark Opposition
In trademark law, opposition means the formal process by which third parties can object to a trademark application after it has been published for opposition in the Trademark Official Gazette.
The opposition process is handled by the Trademark Trial and Appeal Board (TTAB).
A trademark opposition can be filed by anyone who believes they will be harmed by the registration of a particular trademark. Understanding the trademark opposition process and the legal grounds for opposition is key to navigating the complexities of trademark law and protecting one’s intellectual property rights.
The Publication Period
When a trademark application is initially approved by the examiner, it is published for opposition. This means it is open to public challenge for a period of 30 days—this 30-day window is known as the opposition period. During this time, a potential opposer can review the trademark and decide whether to file an opposition.
A trademark published in the Trademark Official Gazette is open to challenge during the opposition period. The publication period is a critical time for trademark owners, as it allows them to gauge potential opposition and prepare for any challenges that may arise.
It typically takes 6 to 10 months after filing for a trademark to be published for opposition. The Trademark Electronic Search System (TESS) is a valuable tool for searching existing trademarks and identifying potential conflicts. A full clearance search from an attorney is also a great option to minimize the risk of having an opposition filed against your trademark application.
A weekly online publication, the Trademark Official Gazette, announces trademarks that are pending registration and open to opposition. If you have trademarks to protect, regular trademark monitoring by an attorney can help you to get advance notice of potential applications that conflict with your mark.

Filing an Opposition
To oppose a trademark, a party must have a real interest in the outcome and demonstrate a reasonable belief that they will be harmed by the registration of the trademark.
To oppose a trademark during the publication period, a third party must file a Notice of Opposition with the TTAB, stating the grounds and providing the necessary documentation within the 30-day window.
The opposition must be filed within the 30-day publication period, and the opposing party must pay the required filing fees.
A Notice of Opposition is a formal document that initiates the opposition process and outlines the grounds for opposition. Each party must submit their own evidence to support their claims. The opposition process involves using this evidence and submitting legal arguments, and the TTAB will review the opposition and make a decision.
Grounds for Opposition
Common grounds for trademark opposition include:
- Likelihood of confusion with existing trademarks
- Prior common law rights in similar marks
- Descriptiveness or genericness of the proposed mark
- False suggestion of connection with another entity
The most common reason for opposition is the likelihood of confusion, which is the primary ground for challenging a trademark application. Claims of likelihood of confusion often arise when there are similar marks that may mislead the public or cause confusion between brands.
Opposition can also be filed if a mark is already trademarked and the new application infringes on those existing rights. Consumer confusion is a significant concern, as it can lead to a loss of business and damage to a company’s reputation.
Trademark opposition attorneys play a crucial role in advising clients on the grounds for opposition and guiding them through the opposition process. Don’t forget – the opposition process is a legal proceeding that requires careful preparation and strategic planning.
Role of Trademark Opposition Attorneys
Trademark opposition attorneys are experts in trademark law and can provide invaluable guidance and representation throughout the opposition process. They can help clients navigate the complexities of trademark law and develop effective strategies for opposing a trademark or defending against an opposition.
Experienced attorneys can also assist with settlement negotiations and alternative dispute resolution. In addition to their technical expertise, trademark opposition attorneys must also be skilled communicators and advocates.

Understanding Trademark Applications – A little background
A trademark application is a formal request to register a trademark with the United States Patent and Trademark Office (USPTO). The application process involves several stages, including filing, examination by an examining attorney to ensure the application meets all legal requirements, publication, and registration.
If the examining attorney identifies any issues or deficiencies, they may issue an office action detailing what must be addressed before they can approve the application for publication.
Understanding the trademark application process, including the role of federal law, is essential for navigating the opposition process (including knowing if an opposition is appropriate) and protecting one’s intellectual property rights.
The USPTO provides guidance and resources for applicants, including the Trademark Electronic Search System (TESS) and the Trademark Official Gazette. After approval and publication, the final step is registering the trademark.
After a Trademark is Published
Once your trademark gets published for opposition in the Trademark Official Gazette, you’ve hit a pivotal moment that you really need to understand. This weekly online TMOG publication by the USPTO serves as an official heads-up to everyone out there, signaling that your trademark application has passed the initial review and is now open to challenge.
You’re looking at a publication period that typically lasts 30 days (though would-be opposers can request an extension). During this time, any party with a real interest can review your trademark and determine if there are potential conflicts with their own trademarks or brand identity. You don’t want to be caught off guard during this crucial window.
Here’s where things can get interesting — and potentially complicated for you. During this time, third parties may file a Notice of Opposition if they believe your proposed trademark registration could harm their interests, as discussed before.
This legal proceeding gets overseen by the Trademark Trial and Appeal Board (TTAB), which acts as the appeal board for trademark oppositions, cancellations, and examiner refusals.
If no opposition gets filed within the publication period, your trademark application proceeds toward registration, and your mark may soon become active on the principal register — exactly what you’re hoping for.
However, if someone does file an opposition, your registration process gets paused, and both the applicant and the opposing party must prepare for what could be a potentially lengthy legal proceeding.
Navigating the Opposition Process
The opposition process can be complex and time-consuming, involving multiple stages and deadlines. As the case proceeds, it typically moves through discovery, trial, and decision-making phases, and can take a significant time to resolve.
Parties must be prepared to submit evidence and legal arguments, and to respond to counterclaims and rebuttals.
Depending on the TTAB’s instructions, parties may need to take further action at various points in the process.
Common TTAB issues that can arise include procedural disputes, missed deadlines, and evidentiary challenges. The TTAB will review the opposition and make a decision, which may be appealed to the Federal Courts.
Before a decision is made, parties may request oral arguments to present their case directly to the TTAB. But typically, the process is mainly resolved through submitting documents drafted by an attorney.
Throughout the opposition process, it is essential to have experienced legal representation and to stay informed about the latest developments and changes in trademark law.

Responding to an Opposition
When you receive a Notice of Opposition against your trademark application, you need to move fast and think strategically to protect what’s rightfully yours. The first thing you absolutely must do is file a formal answer within the specified timeframe — typically 40 days from when that notice lands on your desk.
This answer isn’t just a formality; it should directly tackle every claim the opposing party throws at you and present whatever evidence you’ve got supporting your right to register that trademark. Depending on what you’re dealing with, you might also want to consider filing a counterclaim or a motion to dismiss if there are solid grounds to challenge the opposition itself.
Once you’ve gotten that initial response out the door, the opposition process moves into what’s called the discovery period. This is where things get potentially expensive.
During this phase, both sides get to exchange evidence, demand documents, and conduct depositions to build their respective cases. You don’t want to underestimate this stage because the quality and relevance of the evidence you present can make or break your entire opposition.
Key steps when responding to opposition:
- File formal answer within 40 days
- Address each claim made by the opposing party
- Gather and present supporting evidence
- Consider counterclaims if appropriate
- Prepare for the discovery period
The process can drag on for what feels like forever — often several months or even years — and your trademark application sits in limbo until the whole mess gets resolved.
Strategies for Minimizing Opposition Risk
Conducting thorough trademark searches and clearing potential trademarks before filing an application can help minimize opposition risk and ensure a smoother path to registration.
Developing a strong trademark strategy and working with experienced trademark attorneys can also reduce the likelihood of opposition.
Being proactive and responsive throughout the application and opposition process can help to address potential issues before they become major problems.
Staying up-to-date with the latest developments and changes in trademark law is also crucial for minimizing opposition risk and protecting one’s intellectual property rights.
The Importance of Legal Representation
Legal representation can be essential for navigating the complexities of trademark law and the opposition process. Experienced attorneys can provide expert guidance, strategic advice, and effective representation throughout the opposition process.
Very often, trademark owners have an idea of how they want trademark law to work, which doesn’t line up with the reality. Having someone who will give it to you straight about how strong or weak your case is can be extremely valuable.
They can help clients to develop strong trademark strategies, conduct thorough trademark searches, and prepare for potential opposition.
In addition to their technical expertise, trademark attorneys must also be skilled communicators and advocates, able to effectively represent their clients’ interests.
Timeline and Costs
The trademark opposition process involves specific timelines that must be carefully followed. The initial opposition period lasts 30 days from publication, but extensions may be available in certain circumstances.
Attorney’s fees and other costs can add up quickly during opposition proceedings, making it important to budget appropriately and consider settlement options when viable.
Settlement and Alternative Resolution
Sometimes, the parties might decide to hash things out through settlement negotiations or mediation rather than going through a full trial. If you can’t reach an agreement, the TTAB will review all the evidence and issue a decision — which you can appeal to federal court if things don’t go your way.
But understand that this process can potentially take years, so settlement is often the best way out of the dispute with a resolution that (hopefully) works for everyone involved.
Understanding these steps and the importance of building a rock-solid defense can help you navigate this challenging phase and significantly boost your chances of securing that trademark registration you’re after, or stopping one that you think would harm your trademark.

Frequently Asked Questions
What is opposition, in simple words?
Opposition in trademark law is a formal challenge to a pending trademark application. It’s a way for third parties to object to a trademark registration if they believe it will harm their existing rights or cause consumer confusion.
What is an example of an opposition?
An example would be if Company A tries to register “Blue Mountain Coffee” for coffee products, but Company B already owns rights to “Blue Mountain Roasters.” Company B could file an opposition claiming likelihood of confusion between the similar marks.
What does it mean when your trademark is published?
When your trademark is published, it means the USPTO has approved your application and published it in the Official Gazette for a 30-day opposition period. During this time, third parties can challenge your registration.
What is a notice of opposition?
A Notice of Opposition is the formal document filed with the TTAB to initiate opposition proceedings. It must state the grounds for opposition and be filed within the 30-day publication period (or the extension period, if any).
How long is the opposition period for trademarks?
The opposition period for trademarks lasts 30 days from the date of publication in the Trademark Official Gazette. Extensions may be available under certain circumstances.
Conclusion and Next Steps
The trademark opposition process is a critical step in protecting intellectual property rights and ensuring that existing trademark rights are respected.
The TTAB’s decision is a critical milestone in the opposition process, as it determines the outcome and sets you up for next steps.
After a TTAB decision, the losing party may appeal the TTAB’s ruling or take further legal steps, but it is important to act promptly to preserve any rights. If no appeal is filed and the opposition is resolved, the trademark registration becomes active, and the owner must maintain the registration active through timely filings and fee payments.
Understanding the opposition process and working with experienced attorneys can help to minimize opposition risk and achieve successful outcomes. By staying informed about the latest developments and changes in trademark law, parties can navigate the complexities of the opposition process and protect their valuable trademarks.
Whether you are a trademark owner, applicant, or opponent, it is essential to have a deep understanding of the trademark opposition process and to seek expert guidance and representation when needed. If you’re facing a trademark opposition or need assistance with the opposition process, click here to set up a consultation.