Quick Summary
Two of the largest companies in the country are currently locked in a legal fight over a two-word phrase most people say dozens of times a week. Citigroup holds a registered trademark on \”THANKYOU\” and recently sued AT&T over a customer loyalty program built around the phrase \”AT&T thanks.\”
Can you trademark a phrase this common? The answer is more nuanced than it first appears, and this case offers a useful window into how phrase trademarks work. At Vethan Law Firm P.C., disputes like this one come up more often than most business owners expect.
Can You Trademark a Phrase Like \”Thank You\”?
Citigroup has offered customer loyalty and rewards programs tied to several of its credit cards since 2004, including cards co-branded with AT&T. Over the years, the company built out a family of registered trademarks using the term THANKYOU, and one of these marks carries an official registration number with the United States Patent and Trademark Office.
Citigroup’s complaint alleges that AT&T launched its own loyalty program in June 2016 under the names \”thanks\” and \”AT&T thanks.\” According to the filing, this new program created a real risk of confusing customers about which company stood behind the loyalty rewards being offered.
Our business law team sees this pattern surface across many industries. A phrase gains meaning over time through consistent use in the marketplace, and that accumulated meaning is often what a trademark protects.
What Does Citigroup’s Legal Argument Actually Claim?
Citigroup’s complaint lists eight separate trademarks, either registered or considered legally incontestable, all built around the word THANKYOU in some variation. The company groups these together under the umbrella term THANKYOU Marks throughout its filing.
The company argues that years of advertising, marketing investment, and widespread customer exposure have transformed THANKYOU into a recognizable identifier for its financial products and rewards services.
Rather than claiming ownership of an ordinary word, Citigroup’s position is that consumers have come to associate the THANKYOU brand specifically with its business. Trademark law often protects that marketplace recognition instead of the individual words themselves.
How Has AT&T Responded to the Lawsuit?
AT&T disputed Citigroup’s claims and maintained that no company should be able to claim exclusive rights to a commonly used word such as \”thanks.\”
Citigroup requested a court order preventing AT&T from continuing to use \”AT&T thanks\” and also sought monetary damages. AT&T indicated that it intended to continue using the program while defending the lawsuit.
The case highlights an important aspect of trademark litigation. Courts generally examine whether consumers are likely to believe the competing products or services come from the same source. The decision rarely depends solely on whether the words are common in everyday conversation.
What Makes a Phrase Eligible for Trademark Protection?
Not every phrase qualifies for trademark protection, and understanding why matters for any business considering this route. A phrase generally needs to function as a source identifier, meaning consumers connect it specifically to one company’s products or services rather than treating it as generic language everyone uses.
Several factors influence whether a phrase can clear this bar. Distinctiveness plays the largest role, since made-up or unusual phrases tend to earn protection more easily than common expressions.
Length of use matters too, since a phrase used consistently for years builds stronger consumer association than one introduced recently. The industry context also shapes outcomes, since a phrase considered generic in one field might carry distinct meaning in another.
Businesses exploring this option should also expect scrutiny around descriptiveness. A phrase that simply describes a product or service, rather than identifying its source, generally struggles to secure meaningful trademark protection no matter how long it has been in use.
What Should Businesses Learn From High Profile Phrase Disputes?
Cases involving large companies fighting over everyday phrases carry lessons for businesses of every size. Trademark disputes rarely come down to who used a phrase first in casual conversation. They hinge on registration status, evidence of consumer recognition, and the likelihood of confusion between the two brands in the marketplace.
Smaller businesses sometimes assume trademark protection only matters for well-known consumer brands with national reach. That assumption creates risk. A regional business that builds a distinctive slogan or catchphrase into its marketing can face the same infringement questions as a multinational corporation, particularly once that phrase becomes closely tied to the business locally.
Our intellectual property team regularly helps clients evaluate whether a phrase used in marketing, product names, or customer-facing programs may already be protected. They also evaluate whether pursuing a new trademark registration makes sense before a competitor does.
Protecting the Phrases That Define Your Brand
Disputes like the one between Citigroup and AT&T show that even everyday language can carry serious legal ramifications once a business builds enough recognition around it.
Deciding whether a phrase can be trademarked and whether it is worth the effort to protect it depends on how distinctive the phrase has become and how much value it adds to a brand’s identity. Vethan Law Firm P.C. helps business owners assess these questions before conflict arises.
Curious whether your company’s branding could face a similar challenge? Talk with our intellectual property attorneys before a dispute lands on your desk.
