A mass arbitration case being argued at the U.S. Court of Appeals for the Seventh Circuit next month could affect the future of the emerging plaintiffs-lawyer strategy more broadly, legal experts say.

Electronics giant Samsung is challenging a lower court order that it pay more than $4 million in arbitration initiation fees associated with tens of thousands of arbitration claims accusing the company of violating Illinois’ biometric privacy laws. As companies have imposed consumer contracts in recent years forbidding class actions and mandating arbitration, plaintiffs lawyers have turned to coordinating large groups of individual demands against the same business instead.