Someone Registered My Amazon Brand Name: What to Do If a Competitor Files a Trademark for Your Common Law Mark

Someone Registered My Amazon Brand Name: What to Do If a Competitor Files a Trademark for Your Common Law Mark

Quick Answer: If another seller files a trademark application for a brand name you were already using on Amazon, you may have legal options. Evidence of first use may support a USPTO Letter of Protest, a TTAB opposition, or a cancellation action. Acting quickly can help protect your Amazon listings, Brand Registry rights, intellectual property, and ability to compete for the Buy Box.

At AMZ Sellers Attorney®, we have observed an increasing trend involving foreign competitors attempting to register trademarks for brand names already being used by established Amazon sellers. In many cases, the original seller has invested years building a successful brand but never filed a federal trademark application. Opportunistic competitors identify these unregistered brands and attempt to secure trademark rights through the United States Patent and Trademark Office (USPTO).

This growing problem has significant consequences for Amazon sellers. A competitor that obtains a trademark registration may attempt to interfere with listings, file intellectual property complaints, gain Brand Registry advantages, suppress competitors, or create confusion regarding ownership of a brand.

If someone has filed a trademark application for a brand name you were already using, immediate action may be necessary.

Can Someone Trademark My Amazon Brand Name If I Used It First?

Possibly—but that does not mean they will ultimately prevail.

Under United States trademark law, rights arise through actual use of a mark in commerce. These are known as common law trademark rights. If you used your brand name before the applicant's filing date, you may possess superior rights even if you never obtained a federal trademark registration.

Common law rights can be extremely valuable when challenging improperly filed trademark applications, especially where evidence demonstrates that the applicant adopted the mark after your brand had already established marketplace recognition.

Why This Matters to Amazon Sellers

Amazon's ecosystem relies heavily on intellectual property rights. Trademark registrations can influence Brand Registry enrollment, infringement complaints, listing disputes, and other enforcement mechanisms.

As a result, some bad actors attempt to use trademark registrations strategically rather than legitimately.

Potential consequences include:

• Trademark complaints against your listings;
• Brand Registry conflicts;
• Attempts to remove competing listings;
• Listing hijacking disputes;
• Loss of Buy Box opportunities;
• Customer confusion regarding brand ownership;
• Costly legal disputes and enforcement actions.

What Is a USPTO Letter of Protest?

A Letter of Protest is a procedure that allows third parties to submit objective evidence to the USPTO while a trademark application is still pending examination.

Many sellers mistakenly believe they must wait until publication before taking action. In some situations, a properly supported Letter of Protest may allow relevant evidence to reach the USPTO examining attorney before the application proceeds to publication.

Although a Letter of Protest is not appropriate in every case, it can be an important tool when evidence exists that may affect examination of the application.

What Evidence Helps Establish Priority of Use?

If another seller has filed for your brand name, preserving evidence immediately is critical.

Evidence may include:

• Amazon listing history showing use of the mark;
• Product packaging and labeling;
• Supplier invoices and manufacturing records;
• Website pages featuring the trademark;
• Advertising materials;
• Customer reviews referencing the brand;
• Sales records and order history;
• Photographs of products displaying the mark;
• Social media posts demonstrating marketplace use;
• Archived webpages establishing earlier use.

The stronger your evidence of first use, the stronger your position becomes when challenging a competitor's application.

Letter of Protest vs. TTAB Opposition

A Letter of Protest and a Trademark Trial and Appeal Board (TTAB) opposition serve different purposes.

A Letter of Protest occurs during the examination process and may allow objective evidence to be considered before publication.

A TTAB opposition is a formal legal proceeding that occurs after publication and allows parties to litigate issues such as:

• Priority of use;
• Likelihood of confusion;
• Trademark ownership;
• Fraudulent filings;
• Bad-faith applications;
• Trademark validity.

For many Amazon sellers, a TTAB opposition becomes the most powerful mechanism for preventing an improperly filed trademark application from becoming a registration.

Learn more about our TTAB practice here:

Amazon TTAB Lawyers – Trademark Opposition and Cancellation Services

How to Challenge a Competitor's Trademark Application

1. Identify the trademark application.
2. Gather evidence of first use.
3. Preserve Amazon listing history.
4. Review filing dates and application claims.
5. Evaluate whether a Letter of Protest is appropriate.
6. Monitor publication deadlines.
7. File a TTAB opposition when warranted.
8. Protect Brand Registry rights and Amazon listings.

How to Prevent Trademark Hijacking in the Future

The best defense is proactive trademark protection.

Amazon sellers should consider filing trademark applications as early as possible rather than waiting until competitors discover the brand. Early registration can strengthen enforcement rights, support Brand Registry enrollment, and reduce opportunities for bad-faith actors to exploit unregistered brands.

Federal trademark registration may provide:

• Nationwide priority rights;
• Enhanced enforcement capabilities;
• Greater protection against copycats;
• Brand Registry eligibility;
• Stronger legal remedies;
• Increased brand value.

Frequently Asked Questions

Can someone trademark my Amazon brand name if I used it first?

Possibly, but prior use may create superior common law rights that can support challenges to the application.

What is a Letter of Protest?

A Letter of Protest allows objective evidence to be submitted to the USPTO while a trademark application is pending.

Can a foreign seller register my brand name?

Foreign applicants can file U.S. trademark applications, but those applications may be challenged by parties with superior rights.

Do I have to wait for publication to take action?

Not necessarily. Some situations may warrant a Letter of Protest before publication.

What should I do first if someone files for my brand name?

Immediately preserve evidence of first use, review the trademark application, and consult experienced trademark counsel regarding available options.

Protect Your Amazon Brand Before It's Too Late

Trademark hijacking, bad-faith trademark filings, and improper attempts to claim ownership of established Amazon brands are becoming increasingly common.

If another seller has filed a trademark application for your brand name, AMZ Sellers Attorney® can evaluate your rights, analyze the application, prepare a Letter of Protest where appropriate, and represent you in TTAB opposition or cancellation proceedings.

Call AMZ Sellers Attorney® at 877-9-SELLER (877-973-5537) or contact us online today for a consultation.