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 2025

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

Licensing chief Patrik Hammarén also reveals that the company will rename its IPR business to better reflect its role in defining standards
The acquisition of Pecher & Partners follows the firm’s earlier expansion into litigation to create a ‘one-stop shop’
News of Via Licensing Alliance launching its first semiconductor patent pool and INTA electing a new president were also among the top talking points
Submit your nominations to this year's WIBL Americas Awards by January 23
The 2026 Life Sciences EMEA Awards is now open for entries. We are looking forward to reviewing and celebrating the industry's most impressive achievements and landmarks from the past year.
The tie-up between Perkins Coie and Ashurst may generate some striking numbers, but independent IP firms need not worry yet, according to practitioners
Perkins Coie’s US patent prosecution strength could provide Ashurst with an opportunity to enter an untapped market in Australia, but it may not be easy
Mitesh Patel at Reed Smith outlines why the US Copyright Office and courts have so far dismissed AI authorship and how inventors can protect AI-generated works
Xia Zheng, founder of AFD China, discusses balancing legal work with BD, new approaches to complex challenges, and the dangers of ‘over-optimism’
A dispute involving semiconductor technology and a partner's move from Hoffman Eitle to Hoyng Rokh Monegier were also among the top talking points
Gift this article