Supreme Court: Want post-expiration royalties? Go to Congress

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

Supreme Court: Want post-expiration royalties? Go to Congress

The US Supreme Court has upheld the ban on royalty payments for sales made after a patent’s expiration

Kimble v Marvel involves Stephen Kimble's invention (patent no 5,072,856) for a toy glove that allows the user to shoot foam string from the wrist. A Marvel predecessor licensed the patent for use in a Spiderman toy. The agreement had no limitation regarding the patent’s expiration. Marvel later sought a declaratory judgment ruling that it was not required to pay royalties for post-expiration sales due to the Supreme Court’s ruling in Brulotte v Thys, which bars such payments. Both the District Court and the Ninth Circuit found in favour of Marvel.

In a 6-3 decision, the Court affirmed, finding that its earlier holding expressly barred patentees from continuing to receive royalties for sales made after the patent has expired. The majority decision written by Justice Kagan held that stare decisis dictates that the Court follow the Brulotte ruling. The majority noted that while Kimble may have raised valid arguments attacking the economic underpinnings behind Brulotte, such arguments should be brought to Congress, not the court.

Similarly, the majority said that Kimble’s proposed alternative, applying the “rule of reason” analysis from antitrust law, would lead to less certainty and higher litigation costs in contrast to the bright-line Brulotte rule.

The majority also found that, despite complaints that the Brulotte prohibition restricts innovation and deal-making, there are multiple ways of drafting agreements that get around this restriction.

The dissent, written by Justice Alito and joined by Chief Justice Roberts and Justice Thomas, argued that though the majority hangs its decision on stare decisis, the underlying Brulotte decision was an example of judicial overreach that was less about interpreting the Patent Act and more about concocting policy. Alito also argued that the policy goals behind Brulotte have been “soundly refuted” and that the bar against royalties for post-expiration sales restricts parties from efficiently structuring agreements to reflect the risk of certain types of research.

Check back later in the week for in-depth analysis of this decision. For Managing IP’s coverage of the oral arguments, click here.

more from across site and SHARED ros bottom lb

More from across our site

Justin Hill and Marie Jansson Heeks, part of an 18-strong team to have joined Crowell & Moring, explain why IP client advice must go beyond only being called upon for patent disclosure
To mark the EUIPO having processed five million EUTM and REUD applications, Managing IP speaks to the most prolific representatives to uncover how they stay at the top of their game
The merger marks Rouse’s second M&A deal within a month, and will provide access to Arnold & Siedsma’s UPC offering
Simon Tønners explains why IP provides the chance to work with some of the most passionate, risk-taking, and emotionally invested clients
The co-leaders of the firm’s new SEP practice group say the team will combine litigation and prosecution expertise to guide clients through cross-border challenges
Boasting four former Spruson & Ferguson leaders and with offices in Hong Kong and Singapore, the IP firm aims to provide fast, practical advice to clients
Partners at three law firms explain why trade secrets cases are rising, and how litigation is giving clients a market advantage
Delegates at a conference unpicking the UK’s relationship with the UPC are hopeful of strengthened UK involvement – so should we all be
News of a litigation funder suing its co-founder and a law firm over trade secrets infringement, and a strategic hire by Womble Bond Dickinson were also among the top talking points
Managing IP’s parent company, LBG, will acquire The Lawyer, a leading news, intelligence, and data-driven insight provider for the legal industry, from Centaur Media
Gift this article