Introduction
A trademark is among a business’s most valuable assets. Whether it takes the form of a brand name, logo, slogan, or distinctive trade dress, a trademark distinguishes your goods and services from those of your competitors and communicates the quality and reputation your customers have come to expect. When a third party uses a mark that is identical or confusingly similar to yours — without authorization — the resulting trademark infringement can dilute your brand identity, divert customers, and cause lasting commercial harm.
The good news is that U.S. trademark law provides trademark owners with a robust set of tools to stop infringement and recover damages. The Lanham Act, 15 U.S.C. § 1051 et seq., is the federal statute that governs trademark registration and enforcement, and it is supplemented by state common law and state unfair competition statutes. However, the effectiveness of any enforcement strategy depends heavily on acting promptly, methodically, and with a clear understanding of your legal position. This article walks U.S. businesses through the key steps and considerations involved in responding to third-party trademark infringement, from initial discovery through litigation if necessary.
A threshold point bears emphasis at the outset: trademark rights in the United States arise from use in commerce, not merely from registration. Federal registration on the Principal Register of the U.S. Patent and Trademark Office (USPTO) carries powerful legal presumptions — including nationwide constructive notice and a presumption of validity — but even an unregistered mark may be enforced against infringers within the geographic territory in which the mark is actually used. Knowing the precise scope and strength of your trademark rights is the essential first step in any enforcement effort.
Step One: Confirm That Infringement Has Occurred
Before taking any action, you must confirm that the third party’s conduct actually constitutes infringement under applicable legal standards. Not every use of a similar mark by another party gives rise to an actionable claim, and mistaken or aggressive enforcement can expose your business to counterclaims, declaratory judgment actions, and reputational damage.
The Likelihood-of-Confusion Standard
The core test for trademark infringement under federal law is whether the defendant’s use of its mark creates a likelihood of confusion among consumers as to the source, sponsorship, affiliation, or approval of the goods or services in question. Federal courts apply a multi-factor balancing test to assess this question. The factors, which trace their lineage to the Second Circuit’s Polaroid Corp. v. Polarad Electronics Corp. decision and similar formulations in other circuits, typically include: (1) the strength of the plaintiff’s mark; (2) the degree of similarity between the marks; (3) the proximity or relatedness of the goods or services; (4) the likelihood that the plaintiff will bridge the gap into the defendant’s market; (5) evidence of actual confusion; (6) the sophistication of the relevant consumers; (7) the quality of the defendant’s goods or services; and (8) the defendant’s good or bad faith in adopting its mark. No single factor is dispositive, and courts weigh them collectively. Your counsel should assess each factor honestly before you commit to an enforcement path.
Other Forms of Actionable Conduct
Beyond classic consumer confusion, the Lanham Act also addresses two related but distinct theories of liability. Trademark dilution under 15 U.S.C. § 1125(c) protects owners of “famous” marks — marks that are widely recognized by the general consuming public — against uses that blur the distinctiveness of the mark or tarnish its reputation, even without any likelihood of confusion. Dilution is a high bar: courts have found fame in marks like KODAK, GOOGLE, and COCA-COLA, but not in marks with more limited recognition. Cybersquatting under the Anticybersquatting Consumer Protection Act (ACPA), 15 U.S.C. § 1125(d), addresses bad-faith registration or use of a domain name that is identical or confusingly similar to, or dilutive of, a distinctive or famous trademark. Each of these theories has distinct elements and remedies, and counsel should consider all potentially applicable theories from the outset.
Step Two: Gather and Preserve Evidence
Once you have identified what appears to be an infringing use, your next priority is to document it thoroughly and systematically. Evidence that is gathered early — before the infringer has an opportunity to alter or destroy it — is far more valuable than evidence reconstructed later.
You should capture screenshots of the infringing website, social media profiles, product listings, and advertisements, with date and URL metadata visible. Preserve copies of any infringing products, packaging, or promotional materials if they can be obtained. Retain examples of any communications your customers, distributors, or sales staff have received that demonstrate actual confusion — whether in the form of misdirected inquiries, complaints about the other party’s goods being attributed to you, or direct expressions of uncertainty about the relationship between the two brands. Organize this evidence in a secure manner and ensure it is not altered. If the infringement is occurring online and there is a risk that content will be taken down or modified, consider engaging a digital forensics service that can create authenticated records of web pages.
Simultaneously, gather documentation of your own trademark use. This includes specimens showing your mark in commerce dating as far back as possible, records of your trademark registrations and maintenance filings with the USPTO, evidence of your advertising expenditures and sales volume, and any consumer survey evidence or third-party recognition of your brand. The stronger and more senior your rights can be demonstrated to be, the stronger your negotiating and litigation position.
Step Three: Assess Your Strategic Options
Once you have assessed the merits and gathered evidence, you should work with your trademark counsel to develop a strategic plan. Enforcement is rarely one-size-fits-all; the right approach depends on factors including the nature and extent of the infringement, the identity and resources of the infringer, the commercial harm being caused, the strength of your mark, and your business’s appetite for litigation.
Informal Resolution
In some cases, particularly where the infringer appears to be a small business that may have adopted a similar mark innocently, a direct and informal communication — a letter or even a phone call from your counsel — can resolve the matter quickly and inexpensively. The infringer may agree to a phase-out of its use and a coexistence or settlement agreement. While this is not always possible, it is worth considering at the outset in cases where the infringer’s conduct does not appear willful and the harm is not severe.
Cease and Desist Letters
The most common first formal step in trademark enforcement is the cease and desist letter. This is a written demand from you (or your counsel on your behalf) that the infringer immediately stop using the infringing mark, destroy any remaining infringing materials, and typically provide written confirmation of its compliance within a specified deadline — usually ten to thirty days.
A well-crafted cease and desist letter serves multiple purposes. It puts the infringer on formal legal notice of your claim, which is relevant to any later argument about willfulness and to calculating the period during which damages may be claimed. It initiates settlement negotiations. And it creates a record that you have acted promptly to enforce your rights — a factor that may be relevant if the infringer later seeks to argue laches or acquiescence.
The letter should identify your mark, describe your prior rights (including your registration details if applicable), specify the infringing conduct in concrete terms, assert the legal theories you believe are violated, and state your demands clearly. It should be firm but professional in tone. An unduly aggressive or legally overreaching letter can backfire: if you allege infringement of a mark you do not clearly own or make demands that are disproportionate to the actual infringement, the recipient may file a declaratory judgment action in a forum of its choosing, putting you in the position of plaintiff on unfavorable terms.
After sending the letter, be prepared for a range of responses: the infringer may comply, may dispute your claims, may make a counteroffer, or may simply not respond. Silence is not acquiescence — if the deadline passes without compliance, you should promptly assess whether to escalate to litigation.
Step Four: Pursue Administrative and Online Platform Remedies
USPTO Opposition and Cancellation Proceedings
If the infringer has applied for or obtained a federal trademark registration for the infringing mark, you may be able to challenge it through proceedings before the USPTO’s Trademark Trial and Appeal Board (TTAB). An opposition proceeding allows you to oppose registration of a pending application within thirty days of publication in the Official Gazette (extendable upon request). A cancellation proceeding allows you to seek cancellation of an already-registered mark, though the grounds available narrow after a registration has been in place for five years.
TTAB proceedings are administratively conducted and typically less expensive than federal court litigation, though they can still take several years to resolve and can involve substantial discovery and briefing. Importantly, TTAB proceedings can only address the question of whether a mark should be registered — they cannot award monetary damages or issue injunctions against the infringing use itself. They are most useful when combined with, or as a precursor to, federal court enforcement.
Online Platform and Marketplace Takedowns
If the infringement is occurring through an e-commerce marketplace such as Amazon, eBay, or Etsy, or through social media platforms, many of these platforms operate brand protection or intellectual property complaint programs that allow trademark owners to report and request removal of infringing listings or content. Amazon’s Brand Registry program, for example, provides registered trademark owners with enhanced tools for monitoring and reporting infringing use. These programs can provide relatively quick relief in appropriate cases, though they do not resolve the underlying dispute and the infringer may simply relist the infringing content.
For domain name disputes, the Uniform Domain Name Dispute Resolution Policy (UDRP), administered by the World Intellectual Property Organization (WIPO) and other accredited dispute resolution providers, offers a streamlined administrative procedure for recovering domain names that have been registered and used in bad faith in violation of your trademark rights. A complainant must establish three elements: (1) the domain name is identical or confusingly similar to a trademark in which the complainant has rights; (2) the registrant has no rights or legitimate interests in the domain name; and (3) the domain name was registered and is being used in bad faith. UDRP proceedings are resolved entirely on written submissions and are typically concluded within approximately two months, making them a far faster and less expensive remedy than federal court litigation for domain name disputes specifically.
Step Five: Federal Court Litigation
When informal resolution, cease and desist demands, and administrative proceedings fail to stop the infringement, or when the harm is sufficiently severe to require immediate court intervention, federal court litigation under the Lanham Act may be necessary.
Choosing the Right Court and Venue
Trademark infringement claims under the Lanham Act are heard by U.S. District Courts. Venue is proper where the defendant resides or where the defendant’s acts of infringement occurred. In cases involving online infringement, venue may be available in virtually any district where consumers have accessed the infringing website or purchased infringing goods. Strategic venue selection — choosing a district with favorable precedent, efficient docket management, and convenient logistics — is an important early decision that your counsel should address.
Seeking a Temporary Restraining Order or Preliminary Injunction
One of the most powerful remedies available to a trademark plaintiff is injunctive relief. Where the infringement is ongoing and causing irreparable harm — harm that cannot be fully remedied by a later award of money damages — you may seek a temporary restraining order (TRO) or preliminary injunction to stop the infringing conduct immediately, before the case is fully resolved on the merits.
To obtain a preliminary injunction in a trademark case, the plaintiff must typically demonstrate: (1) a likelihood of success on the merits; (2) a likelihood of irreparable harm in the absence of preliminary relief; (3) that the balance of equities tips in the plaintiff’s favor; and (4) that an injunction is in the public interest. Following the Supreme Court’s 2006 decision in eBay Inc. v. MercExchange, L.L.C. — which, while decided in the patent context, has influenced trademark cases — courts no longer presume irreparable harm from likely infringement. Plaintiffs must affirmatively demonstrate it, which has raised the bar for obtaining emergency injunctive relief.
Despite this higher standard, preliminary injunctions remain obtainable and are frequently granted in strong cases. Evidence of ongoing consumer confusion, evidence that the infringer is driving away your customers or damaging your reputation, and evidence that the defendant lacks sufficient assets to satisfy a later damages award (making monetary relief at trial inadequate) can all support a finding of irreparable harm.
Discovery and the Litigation Timeline
Federal trademark litigation follows the Federal Rules of Civil Procedure. After the pleadings are filed, the parties engage in discovery — the formal exchange of documents, written interrogatories, requests for admissions, and depositions. In a trademark case, discovery commonly addresses the parties’ respective dates of first use, the strength and recognition of the plaintiff’s mark (including consumer surveys), evidence of actual consumer confusion, the financial performance of the defendant’s infringing products or services, and the defendant’s state of mind in adopting its mark. Discovery can be expensive and time-consuming, often taking twelve to twenty-four months in complex cases. Settlement discussions frequently intensify during or after the discovery phase, when the parties have a clearer view of the evidence and the risks of proceeding to trial.
Monetary Damages and Other Remedies
The Lanham Act authorizes several categories of monetary relief for trademark infringement. Under 15 U.S.C. § 1117, a successful plaintiff may recover: (1) the defendant’s profits attributable to the infringing use; (2) any actual damages suffered by the plaintiff; and (3) the costs of the action. In assessing profits, the plaintiff need only prove the defendant’s gross sales from the infringing use; the burden then shifts to the defendant to prove any deductible costs. Courts have discretion to increase a damages award up to three times actual damages, and to reduce it, as the court finds just under the circumstances. Attorney’s fees may be awarded to the prevailing party in “exceptional” cases — those involving willful infringement, fraud on the USPTO, or other egregious conduct.
Where the infringement involves the use of a counterfeit mark — a spurious mark identical to, or substantially indistinguishable from, a registered trademark — the Lanham Act provides for the award of statutory damages in lieu of actual damages. Statutory damages for counterfeiting range from $1,000 to $200,000 per counterfeit mark per type of goods or services, and up to $2,000,000 per mark per type of goods or services in cases of willful counterfeiting. These statutory damages provisions make counterfeiting cases particularly powerful from an enforcement standpoint.
Step Six: Settlement and Coexistence
The majority of trademark disputes — including those in litigation — are resolved through negotiated settlement rather than a final court judgment. Settlement allows both parties to control the outcome, avoid the uncertainty of trial, and allocate resources more productively than continued litigation. As trademark counsel, we frequently encourage clients to remain open to settlement throughout the enforcement process, while ensuring that any settlement agreement is carefully structured to protect their long-term interests.
A comprehensive trademark settlement agreement should address: (1) a clear identification of the infringing mark and goods or services to which the agreement applies; (2) the infringer’s agreement to cease use of the infringing mark, including an agreed phase-out period if necessary; (3) the infringer’s agreement not to register or use any confusingly similar marks in the future; (4) the scope of any permitted continued use, if a coexistence arrangement is agreed (including geographic limitations, product/service category limitations, and any required distinguishing elements); (5) destruction of infringing inventory and materials; (6) a mutual release of claims; (7) representations and warranties by the infringer regarding its compliance; and (8) provisions for monitoring compliance and remedies in the event of breach.
In some situations, particularly where both parties have legitimate rights in similar marks in different geographic areas or product categories, a formal coexistence agreement can be a commercially sensible resolution. Coexistence agreements must be carefully crafted to ensure that the agreed boundaries are clear and enforceable, and that they do not inadvertently weaken your mark by acknowledging rights that could later be cited against you.
Protecting Your Position: Avoiding Common Pitfalls
The Danger of Delay: Laches and Acquiescence
Trademark law rewards vigilant enforcement. If you become aware of an infringing use and fail to take action within a reasonable time, a court may find that you are barred by the equitable doctrine of laches from obtaining certain relief. Laches requires the defendant to show that the plaintiff unreasonably delayed in asserting its rights and that the defendant suffered prejudice as a result of the delay — for example, by making substantial investments in building its brand during the period of the plaintiff’s inaction. Acquiescence — an active representation by the trademark owner that it would not assert its rights — is an even stronger defense, potentially barring relief entirely. These doctrines underscore the importance of monitoring the marketplace for infringing uses and taking prompt action when infringement is discovered.
Maintaining a Trademark Watch Program
Prevention is always preferable to litigation. Businesses should maintain an active trademark monitoring program — either through their counsel or through commercial watch services — that screens new trademark applications filed with the USPTO, new domain name registrations, and commercial uses of similar marks in the marketplace. Catching infringement early, when the infringer has invested less in its brand and before consumer confusion has become entrenched, is far less costly than attempting to dislodge a well-established competing mark.
Keeping Your Registrations Current
Federal trademark registrations require periodic maintenance. Between the fifth and sixth year following registration, you must file a Declaration of Use (or Excusable Nonuse) under Section 8 of the Lanham Act, and optionally a Declaration of Incontestability under Section 15 (if the mark has been in continuous use for five years since registration). At ten years, and every ten years thereafter, you must file a combined Section 8 Declaration of Use and Section 9 Application for Renewal. Missing these deadlines results in cancellation of your registration. Incontestable status is particularly valuable: once obtained, the registration is immune to certain challenges to validity, including that the mark is merely descriptive, strengthening your enforcement position considerably.
International Dimensions of Trademark Enforcement
Trademark rights are territorial: a U.S. trademark registration does not, by itself, confer rights in other countries. For businesses operating internationally or whose products or services are sold globally, the failure to secure trademark rights in foreign markets can leave the door open to infringement — or to bad-faith registration by third parties (sometimes called “trademark squatters”) in jurisdictions where you intend to expand. Businesses with international operations should work with counsel to develop a coordinated global trademark strategy and should be aware of the major international trademark filing mechanisms, including the Madrid Protocol (administered by WIPO), which allows trademark owners to file a single international application designating multiple member countries.
Enforcement of trademark rights abroad must be pursued under the laws of each relevant jurisdiction, which may differ significantly from U.S. law in terms of the standards for infringement, available remedies, and procedural requirements. In some countries, local counsel is required. For cross-border online infringement — for example, an overseas seller shipping counterfeit goods to U.S. consumers — U.S. Customs and Border Protection (CBP) recordation of your trademark with the U.S. customs authorities is a valuable tool. Recorded trademarks allow CBP to identify and seize infringing goods at the border, providing a powerful and cost-effective enforcement mechanism for businesses confronting counterfeit imports.
Conclusion
Discovering that a third party is infringing your trademark is understandably alarming, but it need not be catastrophic. U.S. trademark law provides trademark owners with a comprehensive arsenal of enforcement tools — administrative proceedings, platform takedowns, cease and desist letters, UDRP arbitration, and federal court litigation — and the choice among them should be driven by a careful, fact-specific assessment of your legal position, the nature of the infringement, and your commercial objectives.
The most important steps you can take are to act promptly, work with experienced trademark counsel, and approach the enforcement process strategically rather than reactively. A well-executed enforcement strategy can often resolve infringement quickly and cost-effectively, without the need for full-scale litigation. Where litigation is necessary, the Lanham Act’s robust remedies — including injunctive relief, disgorgement of the infringer’s profits, actual damages, and attorney’s fees in exceptional cases — mean that the costs of fighting are frequently justified by the relief obtainable.
Your brand is worth protecting. The investment you have made in building consumer recognition and goodwill in your mark deserves the same care and vigilance in its defense as in its creation.
This article is intended for general informational purposes only and does not constitute legal advice or create an attorney-client relationship. If you believe your trademark rights are being infringed, you should consult with qualified trademark counsel to evaluate your specific circumstances.