This list contains an alphabetical listing of historically significant or leading case law in the area of US trademark law.
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A trademark is a word, phrase, or logo that identifies the source of goods or services. Trademark law protects a business' commercial identity or brand by discouraging other businesses from adopting a name or logo that is "confusingly similar" to an existing trademark. The goal is to allow consumers to easily identify the producers of goods and services and avoid confusion.
The Lanham (Trademark) Act (Pub. L.Tooltip Public Law 79–489, 60 Stat. 427, enacted July 5, 1946, codified at 15 U.S.C. § 1051 et seq. is the primary federal trademark statute in the United States. In other words, the Act is the primary statutory foundation of United States trademark law at the federal level. The Act prohibits a number of activities, including trademark infringement, trademark dilution, and false advertising.
Trademark dilution is a trademark law concept giving the owner of a famous trademark standing to forbid others from using that mark in a way that would lessen its uniqueness. In most cases, trademark dilution involves an unauthorized use of another's trademark on products that do not compete with, and have little connection with, those of the trademark owner. For example, a famous trademark used by one company to refer to hair care products might be diluted if another company began using a similar mark to refer to breakfast cereals or spark plugs.
The Anticybersquatting Consumer Protection Act (ACPA), 15 U.S.C. § 1125(d),(passed as part of Pub. L. 106–113 ) is a U.S. law enacted in 1999 that established a cause of action for registering, trafficking in, or using a domain name confusingly similar to, or dilutive of, a trademark or personal name. The law was designed to thwart "cybersquatters" who register Internet domain names containing trademarks with no intention of creating a legitimate web site, but instead plan to sell the domain name to the trademark owner or a third party. Critics of the ACPA complain about the non-global scope of the Act and its potential to restrict free speech, while others dispute these complaints. Before the ACPA was enacted, trademark owners relied heavily on the Federal Trademark Dilution Act (FTDA) to sue domain name registrants. The FTDA was enacted in 1995 in part with the intent to curb domain name abuses. The legislative history of the FTDA specifically mentions that trademark dilution in domain names was a matter of Congressional concern motivating the Act. Senator Leahy stated that "it is my hope that this anti-dilution statute can help stem the use of deceptive Internet addresses taken by those who are choosing marks that are associated with the products and reputations of others".
A concurrent use registration, in United States trademark law, is a federal trademark registration of the same trademark to two or more unrelated parties, with each party having a registration limited to a distinct geographic area. Such a registration is achieved by filing a concurrent use application and then prevailing in a concurrent use proceeding before the Trademark Trial and Appeal Board ("TTAB"), which is a judicial body within the United States Patent and Trademark Office ("USPTO"). A concurrent use application may be filed with respect to a trademark which is already registered or otherwise in use by another party, but may be allowed to go forward based on the assertion that the existing use can co-exist with the new registration without causing consumer confusion.
In United States trademark law, the functionality doctrine prevents manufacturers from protecting specific features of a product by means of trademark law. There are two branches of the functionality doctrine: utilitarian functionality and aesthetic functionality. The rationale behind functionality doctrine is that product markets would not be truly competitive if newcomers could not make a product with a feature that consumers demand. Utilitarian functionality provides grounds to deny federal trademark protection to product features which do something useful. Patent law, not trademark, protects useful processes, machines, and material inventions. Patented designs are presumed to be functional until proven otherwise. Aesthetic functionality provides grounds to deny trademark protection to design features which are included to make the product more aesthetically appealing and commercially desirable. Aesthetic features are within the purview of copyright law, which provides protection to creative and original works of authorship.
People for the Ethical Treatment of Animals v. Doughney, 263 F.3d 359, was an Internet domain trademark infringement decision by the United States Court of Appeals for the Fourth Circuit. The ruling became an early precedent on the nature of domain names as both trademarked intellectual property and free speech.
The doctrine of foreign equivalents is a rule applied in United States trademark law which requires courts and the TTAB to translate foreign words in determining whether they are registrable as trademarks, or confusingly similar with existing marks. The doctrine is intended to protect consumers within the United States from confusion or deception caused by the use of terms in different languages. In some cases, a party will use a word as a mark which is either generic or merely descriptive of the goods in a foreign language, or which shares the same meaning as an existing mark to speakers of that foreign language.
Initial interest confusion is a legal doctrine under trademark law that permits a finding of infringement when there is temporary confusion that is dispelled before the purchase is made. Generally, trademark infringement is based on the likelihood of confusion for a consumer in the marketplace. This likelihood is typically determined using a multi-factor test that includes factors like the strength of the mark and evidence of any actual confusion. However, trademark infringement that relies on Initial interest confusion does not require a likelihood of confusion at the time of sale; the mark must only capture the consumer's initial attention.
Planned Parenthood Federation of America, Inc. v. Bucci, 1997 WL 133313, was a court ruling at the United States District Court for the Southern District of New York. The ruling was an important early precedent on the trademark value of a domain name on the World Wide Web, and established the theory that hosting a site under a domain name that reflected the registered trademark of a different party constituted trademark infringement.
Google, Inc. v. American Blind and Wallpaper Factory, Inc., No. 5:03-cv-05340, was a decision of the United States District Court for the Northern District of California that challenged the legality of Google's AdWords program. The court concluded that, pending the outcome of a jury trial, Google AdWords may be in violation of trademark law because it (1) allowed arbitrary advertisers to key their ads to American Blind's trademarks and (2) may confuse search-engine users initially interested in visiting American Blind's website into visiting its competitors' websites.
The case Brookfield Communications, Inc. v. West Coast Entertainment Corporation, 174 F.3d 1036, heard by the United States Court of Appeals for the Ninth Circuit, established that trademark infringement could occur through the use of trademarked terms in the HTML metatags of web pages when initial interest confusion was likely to result.
Inwood Laboratories Inc. v. Ives Laboratories, Inc., 456 U.S. 844 (1982), is a United States Supreme Court case, in which the Court confirmed the application of and set out a test for contributory trademark liability under § 32 of the Lanham Act.
Playboy Enterprises, Inc. v. Netscape Communications Corp., 354 F.3d 1020 was a case regarding trademark infringement and trademark dilution decided by the United States Court of Appeals for the Ninth Circuit. The ruling addressed unauthorized use of trademarked terms when using web search data to determine the recipients of banner ads.
Trademark infringement is a violation of the exclusive rights attached to a trademark without the authorization of the trademark owner or any licensees. Infringement may occur when one party, the "infringer", uses a trademark which is identical or confusingly similar to a trademark owned by another party, especially in relation to products or services which are identical or similar to the products or services which the registration covers. An owner of a trademark may commence civil legal proceedings against a party which infringes its registered trademark. In the United States, the Trademark Counterfeiting Act of 1984 criminalized the intentional trade in counterfeit goods and services.
Network Automation, Inc. v. Advanced Systems Concepts, Inc., 638 F.3d 1137 was a court case decided on March 8, 2011, where the United States Court of Appeals for the Ninth Circuit ruled that the use of a competitor's trademark as an Internet search advertising keyword did not constitute trademark infringement. In the case, Network Automation advertised their own competing product in search queries that contained Advanced Systems Concepts' "ActiveBatch" trademark. In determining whether trademark infringement occurred, the court evaluated factors relevant to the likelihood of customer confusion outlined in AMF Inc. v. Sleekcraft Boats and concluded that confusion was unlikely.
Moseley v. V Secret Catalogue, Inc., 537 U.S. 418 (2003), is a decision by the Supreme Court of the United States holding that, under the Federal Trademark Dilution Act, a claim of trademark dilution requires proof of actual dilution, not merely a likelihood of dilution. This decision was later superseded by the Trademark Dilution Revision Act of 2006 (TDRA).
Polaroid Corp. v. Polarad Elect. Corp. is a key United States legal case from 1961 in trademark infringement law. It is also cited in personality rights particularly around celebrities. The decision argued that trademark infringement is measured by the multi-factor "likelihood of confusion" test. That is, a new mark will infringe on an existing trademark if the new mark is so similar to the original that consumers are likely to confuse the two marks, and mistakenly purchase from the wrong company.
Rosetta Stone v. Google, 676 F.3d 144 was a decision of the United States Court of Appeals for the Fourth Circuit that challenged the legality of Google's AdWords program. The Court overturned a grant of summary judgment for Google that had held Google AdWords was not a violation of trademark law.
Copyright protection is available to the creators of a range of works including literary, musical, dramatic and artistic works. Recognition of fictional characters as works eligible for copyright protection has come about with the understanding that characters can be separated from the original works they were embodied in and acquire a new life by featuring in subsequent works.