"Despite this clear direction, both parties submitted voluminous documents with their post-trial motions," Koh wrote in an order on Tuesday. "The Court plans to strike from the record all of the material submitted in violation of the Court's Order."
Lawyers for both companies have until Friday to refile their documents in accordance with her rules.
The case is 11-01846, Apple v Samsung, at the Northern California District Court in San Jose.
Martyn Williams covers mobile telecoms, Silicon Valley and general technology breaking news for The IDG News Service. Follow Martyn on Twitter at @martyn_williams. Martyn's e-mail address is email@example.com