Ninth Circuit Clarifies Specific Knowledge Threshold in Contributory Trademark Infringement Cases

In a recent development, the US Court of Appeals for the Ninth Circuit addressed contributory trademark infringement for the first time, determining that specific knowledge is needed for liability to be assumed.
The case in question is Y.Y.G.M. SA, DBA Brandy Melville v. Redbubble, Inc., Case Nos. 21-56150; -56236 (9th Cir. July 24, 2023), presided over by judges Callahan, Nelson, and Thomas.

Contributory trademark infringement is a doctrine of trademark law that holds a party accountable for intentionally aiding another in the infringement of a mark. Previously, the threshold of “specific knowledge” needed to hold a party responsible under this doctrine was not clearly defined by the courts.

The Ninth Circuit ruling provides much-needed clarification by stating that without specific knowledge, there can be no liability. This signals a shift in the way contributory trademark infringement cases may be treated in the future.

This landmark decision underscores the importance of specific knowledge as a fundamental condition for liability in cases of contributory trademark infringement. Legal professionals in corporations and law firms worldwide dealing with intellectual property rights should therefore pay close attention to this development.

The vast implications of this decision may impact how companies manage their intellectual property strategies and trademarks in the future, potentially transforming risk management practices within these organisations.

As this ruling has just been delivered, legal professionals and scholars will be closely monitoring the ripple effects it will produce throughout different industry sectors in time.