Conor Meyers — Co-Founder & Business AttorneyHas built and run businesses; advises owners on contracts, transactions, and risk. About Conor →

A cease-and-desist letter is an opening move, not a verdict — how you respond shapes everything that follows.

Few things rattle a business owner like a cease-and-desist letter claiming trademark infringement. The instinct is either to panic and immediately comply, or to ignore it and hope it goes away. Both can be mistakes. An infringement notice is the opening move in a dispute, and its claims may be strong, weak, or somewhere in between. How you evaluate and respond — within any stated deadline — shapes the entire trajectory of the matter. This guide explains how to approach a trademark infringement notice calmly and strategically.

We help businesses get this right from the start. This is general information, not advice on a specific situation.

A cease-and-desist letter is an opening move, not a verdict.

What an infringement notice is

A trademark infringement notice — commonly a cease-and-desist letter — is a communication, usually from a trademark owner or their attorney, asserting that your use of a name, logo, or mark infringes their rights and demanding that you stop, often by a stated deadline. Infringement generally turns on a “likelihood of confusion” between the marks, a concept the U.S. Patent and Trademark Office’s uspto.gov resources address. Receiving such a letter does not mean you are legally in the wrong; it means someone is asserting a claim. Understanding what the notice actually alleges is the first step in responding well.

The two worst responses are panic and silence.

Why panic and silence both hurt

The two instinctive responses are usually the worst. Panicking and immediately complying — pulling your branding, conceding — can forfeit rights you actually hold and hand the sender leverage they may not deserve, especially if the claim is weak. Ignoring the letter is equally risky: it can escalate to litigation, and silence may be portrayed as bad faith. Neither reaction is grounded in the actual strength of the claim. The better path is a measured evaluation followed by a deliberate response, which preserves your options regardless of whether the claim turns out to be strong or weak.

Evaluating the claim

The heart of a good response is assessing whether the claim has merit. That involves questions like: does the sender actually own valid, protectable rights in the mark? Is there a genuine likelihood of confusion between the marks given the goods, services, and markets involved? Do you have your own prior rights or defenses? The Legal Information Institute’s overview of law.cornell.edu outlines the principles at play. This evaluation determines everything that follows — whether to contest the claim, negotiate a coexistence or transition, or, if the claim is strong, comply on manageable terms. It is where legal guidance is most valuable.

Responding strategically

Once you understand the claim’s strength, you can respond deliberately and within any deadline. Options range from contesting the claim (if it is weak or you have superior rights), to negotiating (a coexistence agreement, a phase-out period, or a license), to complying strategically if the claim is strong. What matters is that the response is chosen based on the merits and your goals, not on fear or avoidance. A well-crafted reply — often best drafted or guided by counsel — protects your position, keeps options open, and frequently resolves the matter without litigation. Deliberate beats reflexive every time.

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