US: TTAB clarifies requirements for consent agreements

Managing IP is part of Legal Benchmarking Limited, 1-2 Paris Gardens, London, SE1 8ND

Copyright © Legal Benchmarking Limited and its affiliated companies 2026

Accessibility | Terms of Use | Privacy Policy | Modern Slavery Statement

US: TTAB clarifies requirements for consent agreements

The Trademark Trial and Appeal Board (TTAB) issued a precedential opinion in In re American Cruise Lines, Inc. regarding the necessary provisions for an acceptable consent to registration. In doing so, the TTAB provided clarification and guidance to trade mark owners who are negotiating and drafting consent agreements.

American Cruise Lines filed a trade mark application for the mark AMERICAN CONSTELLATION covering cruise ship services. The USPTO refused to register the mark based on a likelihood of confusion with the registered marks CONSTELLATION and CELEBRITY CONSTELLATION, each owned by the same registrant and covering identical services. During the prosecution of its application, in its attempts to overcome the likelihood of confusion refusal, American Cruise Lines submitted two consent agreements between it and the owner of the cited registrations. The USPTO examiner did not accept either consent agreement and maintained the refusal. American Cruise Lines then appealed the refusal to the TTAB.

The second consent agreement submitted listed five reasons why the parties believed that confusion was not likely. However, the examiner argued that it was still a "naked" consent because it did not describe the arrangements undertaken by the parties to avoid confusion, did not include an express undertaking by the parties to make efforts to prevent confusion or to cooperate with one another and take steps to avoid any confusion that may arise in the future. A "naked consent agreement" is one that contains little more than the registrant's consent to registration and, sometimes, a statement that confusion is believed to be unlikely. Naked consent agreements are generally not sufficient to overcome a likelihood of confusion refusal.

The TTAB found that the second consent agreement was not, in fact, a naked one. It held that "a provision in the consent agreement that the parties agree to make efforts to prevent confusion or to cooperate and take steps to avoid confusion that may arise in the future may render the agreement more probative, but it is not an essential provision for the agreement to have probative value." The TTAB noted that the consent agreement at issue included several credible reasons that the parties consider confusion to be unlikely and held that "while the inclusion of provisions to avoid any potential confusion are preferred and probative in consent agreements, they are not mandatory."

The TTAB ruled that a consent agreement in which "competitors have clearly thought out their commercial interests" should be given great weight and that the examiner should not substitute its judgment concerning the likelihood of confusion between two marks for the judgment of the real parties in interest. Accordingly, the TTAB reversed the refusal to register the AMERICAN CONSTELLATION mark.

This decision is instructive because it confirms that the TTAB will give great deference to contracting parties who have entered into a consent agreement and that parties to a consent agreement do not necessarily need to include provisions about taking steps to avoid confusion in order for the consent to be accepted. Nonetheless, given the TTAB's indication that such provisions are preferred and probative, it continues to be advisable to include such provisions.

ash-karen-artz.jpg

danow.jpg

Karen Artz Ash

Bret J Danow

Katten Muchin Rosenman LLP 

575 Madison Avenue

New York, NY 10022-2585

United States

Tel: +1 212 940 8554

Fax: +1 212 940 8671

karen.ash@kattenlaw.com

www.kattenlaw.com

more from across site and SHARED ros bottom lb

More from across our site

Monetisation is standing at the forefront of patent development, and one firm says AI is increasingly being deployed
Data centres are being built across the US, prompting patent disputes, but Texas’s thriving tech industry and patent-ready courts make the state particularly ‘ripe’ for litigation
Carpmaels & Ransford is set to bolster its UK attorney team with the appointment of Simmons & Simmons’s head of IP in the UK
Updates on Nokia’s licensing strides and a surge in patent activity around battery recycling in Australia were also among the top talking points
To mark International Day Against Child Labour, Matteo Amerio at Corsearch says the people inside businesses who can identify counterfeiting risks must be given the tools and authority to act
With genuine equity at IP firms becoming rarer, securing partnership is harder than ever, but increased transparency is also making climbing the ladder more predictable
Yossi Sivan explains how Israeli judgment is a pro-brand owner departure from the norm and why it sends a strong message that corporate structures are not always a shield
Halim Shehadeh, group CEO of IP firm CWB, says that in the rush to discuss what AI can do, IP firms are overlooking the more important question of whether they are ready
Caitlin Heard, who formally joined the firm from CMS last month, says she is excited by the ‘energy’ of the London office
Ranjna Mehta-Dutt, who moved to Chadha & Chadha after 25 years at Remfry & Sagar, says the firm plans to expand its life sciences practice through targeted recruitment and dedicated teams for bigger clients
Gift this article