What is a Cease and Desist Letter in IP Disputes?

A cease and desist letter is an informal means of enforcement used by the owner of certain intellectual property to notify an unrelated third-party that they have use of the same or similar IP that infringes upon the owner’s rights and allows that third party an opportunity to “cease and desist” all such infringement right away, in an effort to avoid more formal, and costly, enforcement tactics.

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The use of a cease and desist letter is often the first step in a company’s attempts to halt infringement of its intellectual property. Compared to litigation or even proceedings before the United States Patent and Trademark Office, a cease and desist letter is a more informal process. Typically, such correspondence will provide notice of the author’s senior intellectual property rights (including under both the common law and due to federal registration), identify the use of which it is complaining (in a company name, product or brand name or logo, domain name, or other protected content), and provide the recipient with an opportunity to immediately halt all identified infringement so as to avoid more formal, and expensive, enforcement measures. In some cases, a cease and desist letter can include an audit request—requesting the user to provide detailed information about the subject use so that damages can be quantified—or may demand payment of past damages to remedy the infringement.

And while the recipient of a cease and desist letter is not legally obligated to respond or comply, the use of a cease and desist letter as the first step in the enforcement of your IP rights can be a valuable tool. For example, a cease and desist letter can be strong evidence of willful or intentional infringement where such evidence is needed. Specifically, once a user has been put on notice of the senior IP rights and its own infringement, any continued use of the subject IP is evidence of willful and intentional infringement and, depending on the nature of the IP at issue,  can be used to support liability and, in some cases, enhanced damages.

A cease and desist letter can also serve as a test—or filter—of sorts, allowing IP owners to quickly halt infringement that was unintentional or the subject of a misunderstanding while also identifying those infringers who are more likely to argue against the claimed infringement, thereby allowing the IP owner to evaluate the potential cost and time involved in more formal enforcement, like a federal lawsuit or even to evaluate potential defenses or counterclaims that could be faced if a lawsuit were filed.

It is also important to note that a cease and desist letter is only as strong as the underlying IP rights. An honest evaluation of the strength of an infringement claim should always be undertaken prior to initiating enforcement efforts, including a cease and desist letter. For more information see Common Pitfalls in Trademark Enforcement and How to Build a Safety Net for Your Brand, Six Steps to Secure Better Brand Protection, and Intellectual Property Law Overview.


Klemchuk PLLC is a leading IP law firm based in Dallas, Texas, focusing on litigation, anti-counterfeiting, trademarks, patents, and business law. Our experienced attorneys assist clients in safeguarding innovation and expanding market share through strategic investments in intellectual property.

This article is provided for informational purposes only and does not constitute legal advice. For guidance on specific legal matters under federal, state, or local laws, please consult with our IP Lawyers.

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