Filing a Trademark Opposition: A Comprehensive Guide
As a trademark attorney, I often get asked by clients how to handle situations where they believe a trademark application could harm their business or brand. One of the most common ways to deal with this issue is through filing a trademark opposition. If you're a business owner, it’s important to understand what trademark opposition is and how it works. In this article, I will walk you through the process step-by-step to help you make informed decisions about how to protect your intellectual property.
What is Trademark Opposition?
Trademark opposition is a legal process that allows a party to challenge the registration of a trademark. If you believe that someone else’s trademark could cause confusion with your own, or if it harms your business in other ways, you can file an opposition to prevent that trademark from being registered.
Opposition occurs after the U.S. Patent and Trademark Office (USPTO) has published a trademark in the Official Gazette, which is a weekly publication that lists all trademarks the USPTO has approved. Once the trademark is published, there is a 30-day window during which any party that believes they will be harmed by the registration can file an opposition.
Why Should You File a Trademark Opposition?
There are many reasons you might want to file an opposition. Here are some of the most common ones:
Likelihood of Confusion: The new trademark could be too similar to yours and may cause consumers to confuse the two marks.
Descriptive Terms: The mark could be too descriptive or generic, meaning it doesn’t actually qualify for trademark protection. You can file an opposition if you think the trademark should not be granted because it doesn’t meet legal standards.
Dilution: If the new trademark is similar to your well-known mark, you might argue that it would dilute the distinctiveness or reputation of your brand.
False Suggestion of a Connection: If you believe that the new trademark suggests a false association with your brand or company, you can oppose the registration on those grounds.
How to File a Trademark Opposition
Filing an opposition involves several key steps, and it’s important to follow them carefully to avoid mistakes. Here’s a guide to the process:
Step 1: Monitor the USPTO’s Official Gazette
The first step in filing an opposition is to keep an eye on the USPTO’s Official Gazette. This is where the USPTO publishes newly approved trademark applications that are eligible for opposition. You can access this publication online or subscribe to receive updates.
Once a trademark is published, you’ll have 30 days to file your opposition. This time frame is strict, so it’s important to act quickly if you notice a potentially harmful trademark application.
Step 2: Conduct a Trademark Search
Before filing an opposition, it’s important to do a comprehensive search of the USPTO’s trademark database to confirm that the trademark in question is likely to cause confusion with your mark. You can do this by searching for similar marks to determine whether there’s a real risk of confusion. If you find a mark that is too similar to yours, it strengthens your case for filing an opposition.
Step 3: File a Notice of Opposition
Once you’re certain that the trademark could harm your brand, you need to file a Notice of Opposition with the USPTO. This is the official document that kicks off the opposition process. In the Notice of Opposition, you will:
- Identify the trademark you are opposing.
- Explain why you believe the trademark should not be registered (such as a likelihood of confusion or other grounds).
- Provide evidence supporting your claims.
The Notice of Opposition must be filed through the USPTO’s Electronic Filing System (ESTTA). It’s important to follow all required formatting and submission guidelines to avoid delays in the process.
Step 4: Wait for a Response from the Applicant
Once your opposition is filed, the applicant (the person or company that applied for the trademark) will have 40 days to respond. They may choose to defend their application or abandon it. If they respond, they will likely file an answer in which they deny your claims or provide arguments as to why their trademark should be registered.
Step 5: Engage in Discovery and Settlement Negotiations
If the case moves forward, both parties will engage in a process called “discovery,” where they exchange evidence and information relevant to the case. Discovery allows both sides to gather facts and build their arguments before proceeding to trial.
In many cases, the parties involved in an opposition will try to settle the matter outside of court. If settlement negotiations are successful, the opposition can be resolved without the need for a formal trial. Settlement could involve an agreement to withdraw the opposition or to modify the trademark in a way that resolves the issues.
Step 6: Trial Before the Trademark Trial and Appeal Board (TTAB)
If the opposition cannot be resolved through settlement, the case will proceed to trial before the Trademark Trial and Appeal Board (TTAB). This is an administrative tribunal within the USPTO that hears and decides cases related to trademark disputes.
During the trial, both sides will present their evidence and arguments, and the TTAB will make a decision based on the law and the facts of the case. The TTAB’s decision is final, though it can be appealed to a federal court.
Costs of Filing a Trademark Opposition
Filing a trademark opposition is not free, and it’s important to understand the costs involved. The USPTO charges a fee for filing a Notice of Opposition, which is currently $600 per class of goods or services. If the case goes to trial before the TTAB, there may be additional costs for legal representation, expert witnesses, and other expenses.
While the costs of filing an opposition can add up, it may be well worth it if you’re protecting a valuable brand or trademark.
What Happens After a Successful Opposition?
If your opposition is successful, the USPTO will refuse to register the trademark. This means that the applicant will not be granted trademark protection, and they may need to rebrand or choose a different mark.
In some cases, the applicant might appeal the decision, but if the TTAB’s decision stands, they will be unable to register the trademark.
Conclusion
Filing a trademark opposition is an important legal tool for protecting your brand and ensuring that others don’t unfairly profit from your intellectual property. By understanding the process and working with an experienced trademark attorney, you can take the necessary steps to prevent confusion, protect your reputation, and defend your business against harmful trademarks.
Remember, the opposition process can be complex, and deadlines are critical. So, if you’re considering filing an opposition, it’s always best to act quickly and consult with a trademark attorney to guide you through the process.

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