Lawyers for Apple Inc. are set to ask a federal judge in San Jose to toss privacy and trespass claims brought on behalf of owners of certain iPhones after the performance of their devices slowed following updates to their operating systems.

Plaintiffs argued that Apple made the changes, dubbed a “feature” by the company, to the performance speeds of its iPhone 6 and iPhone 6S devices to spur consumers into buying newer, more expensive models. They also claim Apple failed to disclose those changes until customers complained and a technical expert demonstrated that the phones had curbed performance.