About Trademark Infringement (2024)

What is trademark infringement?

Trademark infringement is the unauthorized use of a trademark or service mark on or in connection with goods and/or services in a manner that is likely to cause confusion, deception, or mistake about the source of the goods and/or services.

What will happen if someone sues me for trademark infringement?

A trademark owner who believes its mark is being infringed may file a civil action (i.e., lawsuit) in either state court or federal court for trademark infringement, depending on the circ*mstances. However, in most cases, trademark owners choose to sue for infringement in federal court. Even when a plaintiff chooses state court, it may be possible for the defendant to have the case "removed" to federal court.

If the trademark owner is able to prove infringement, available remedies may include the following:

  • a court order (injunction) that the defendant stop using the accused mark;
  • an order requiring the destruction or forfeiture of infringing articles;
  • monetary relief, including defendant's profits, any damages sustained by the plaintiff, and the costs of the action; and
  • an order that the defendant, in certain cases, pay the plaintiffs' attorneys' fees.

Conversely, a court may find instead that (1) you are not infringing the trademark, (2) a defense bars the plaintiff's claim(s), or (3) other reasons exist why the trademark owner is not entitled to prevail.

How do I know whether I'm infringing?

To support a trademark infringement claim in court, a plaintiff must prove that it owns a valid mark, that it has priority (its rights in the mark(s) are "senior" to the defendant's), and that the defendant's mark is likely to cause confusion in the minds of consumers about the source or sponsorship of the goods or services offered under the parties' marks. When a plaintiff owns a federal trademark registration on the Principal Register, there is a legal presumption of the validity and ownership of the mark as well as of the exclusive right to use the mark nationwide on or in connection with the goods or services listed in the registration. These presumptions may be rebutted in the court proceedings.

Generally, the court will consider evidence addressing various factors to determine whether there is a likelihood of confusion among consumers. The key factors considered in most cases are the degree of similarity between the marks at issue and whether the parties' goods and/or services are sufficiently related that consumers are likely to assume (mistakenly) that they come from a common source. Other factors that courts typically consider include how and where the parties' goods or services are advertised, marketed, and sold; the purchasing conditions; the range of prospective purchasers of the goods or services; whether there is any evidence of actual confusion caused by the allegedly infringing mark; the defendant's intent in adopting its mark; and the strength of the plaintiff's mark.

The particular factors considered in a likelihood-of-confusion determination, as well as the weighing of those factors, vary from case to case. And the amount and quality of the evidence involved can have a significant impact on the outcome of an infringement lawsuit.

In addition to claiming likelihood of confusion, a trademark owner may claim trademark "dilution," asserting that it owns a famous mark and the use of your mark diminishes the strength or value of the trademark owner's mark by "blurring" the mark's distinctiveness or "tarnishing" the mark's image by connecting it to something distasteful or objectionable-even if there is no likelihood of confusion.

An experienced trademark attorney, taking the particular circ*mstances of your case into consideration, should be able to provide you with an opinion as to the validity and strength of a trademark owner's claims.

You can search our trademark database for similar trademarks. If you know the application serial number or registration number for the particular mark, you may use theTrademark Status and Document Retrieval (TSDR)system to view/download relevant application and registration records.

Sources

15 U.S.C. §§1114, 1116-1118

Black's Law Dictionary (9th ed. 2009)

McCarthy on Trademarks & Unfair Competition(5th ed. 2017 updated quarterly)​

The information presented on this site does not constitute legal advice. It should not be considered to replace advice from an attorney. Reference to any specific organizations, attorneys, law firms, corporations, or websites does not constitute the USPTO's endorsem*nt or recommendation.

Comments, or suggestions, including about the resources you'd like to see? Please let us know by emailing TMFeedback@uspto.gov.

About Trademark Infringement (2024)

FAQs

How do you win a trademark infringement case? ›

To support a trademark infringement claim in court, a plaintiff must prove that it owns a valid mark, that it has priority (its rights in the mark(s) are "senior" to the defendant's), and that the defendant's mark is likely to cause confusion in the minds of consumers about the source or sponsorship of the goods or ...

How do you respond to a trademark infringement letter? ›

The first action you should take in responding to a trademark infringement notice is to call and engage a trademark lawyer. An experienced lawyer can help you assess whether the claim being made is frivolous or legitimate.

How serious is trademark infringement? ›

If infringement of a trademark is proven, a court order can prevent a defendant from using the mark, and the owner may be awarded monetary relief.

What are four defenses to a trademark infringement claim? ›

In addition to the equitable doctrines of laches, estoppel, and unclean hands, an alleged infringer may assert the defenses of fair use and collateral use.

What is the most common defense to an action for trademark infringement? ›

The most common defenses in trademark infringement, unfair competition and trademark dilution suits include descriptive fair use, nominative fair use, laches, unclean hands and trademark misuse, fraud in obtaining the registration, and application of the First Amendment.

What is the most commonly granted remedy for trademark infringement? ›

The most common remedy for trademark infringement is injunctive relief.

What happens if you accidentally infringe a trademark? ›

If you get caught infringing on a trademark, you will soon receive a cease and desist letter. This document is basically sent to an individual or firm to stop any illegal activity (in this case it's infringement) and not to resume the activity again.

What is an example of a trademark infringement situation? ›

Examples of trade mark infringement include trade marks that are:
  • identical or deceptively similar in the same category of goods or services;
  • identical or deceptively similar in a similar category of goods or services; and.
  • so well known that they have gained recognition beyond their category of goods or services.
Jan 18, 2022

What is an example of trademark infringement? ›

Even if the marks are not identical, if they are close enough to create confusion among consumers, it may be deemed infringement. Example: A new shoe company uses a stylized “M” that looks very similar to the McDonald's “M” logo.

How much does a trademark infringement lawsuit cost? ›

Average Cost of Trademark Infringement Lawsuit

If your business is the plaintiff, as opposed to the defendant, a trademark infringement lawsuit can cost between $10,000 and $750,000. If you're the defendant, you may be forced to pay additional costs in financial damages and, in some cases, attorneys' fees.

How long do you go to jail for trademark infringement? ›

The average prison term for these offenders was 25 months; The average sentence length for all copyright/trademark offenders was 15 months.

How much does a trademark infringement case cost? ›

Now consider the cost of suing. Typically, lawyers who handle trademark cases charge $250 per hour or more (especially in larger metropolitan areas). Full-blown trademark litigation can easily cost over $20,000, and that number can increase depending on the location of the litigation and the possibility of appeal.

What is the test for trademark infringement? ›

The Lapp test is the standard used to determine whether a likelihood of confusion exists between two trademarks. Under the Lanham Act, liability for trademark infringement is based on a finding that the use of one trademark causes a likelihood of confusion with another previously established trademark.

What is acquiescence defense to trademark infringement? ›

The concept of acquiescence means that, if you knowingly allow your trademark rights to be infringed by another entity without taking action for a significant period of time, you have legally acquiesced to that entity's right to use and profit from your trademark.

What are affirmative defenses to trademark infringement claim? ›

The following are some defenses to trademark infringement claims, including affirmative defenses:
  • Descriptive Fair Use.
  • Nominative Fair Use.
  • Invalid Mark or Registration.
  • Priority also known as Senior Use.
  • Laches – Delay in Enforcement.
  • Unclean Hands – Plaintiff's Conduct Forfeited Rights.
  • Misuse of Trademark.

What are the evidence of trademark infringement? ›

To prove trademark infringement, a trademark holder must show that a defendant's use of its trademark is likely to cause confusion, to cause mistake or to deceive. See Adobe Systems Inc. v. Christenson, 809 F.

What are the affirmative defenses to trademark infringement? ›

Some affirmative defenses include: (1) unclean hands; (2) laches; (3) estoppel; (4) acquiescence; (4) fraud; (5) mistake; (6) prior judgment; (7) third parties have used similar marks for similar goods, thus the mark is weak and entitled to a narrow scope of protection; or (8) any other matter that constitutes an ...

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