Federal Circuit Affirms That Expert Testimony Must Be Based on Competent and Reliable Evidence
By EsqSocial Corporation 10/04/25
Mirror Worlds Technologies, LLC (“Mirror Worlds”) sued Meta Platforms, Inc. (“Meta”)—formerly Facebook, Inc.—in the Southern District of New York for patent infringement. The lawsuit involved three patents related to storing, organizing, and presenting data in time-ordered streams. These patents purportedly introduced a unique method for automatically storing documents in chronological order with timestamps. Mirror Worlds accused several Facebook features, including the News Feed, Timeline, and...
By: Proskauer - The Patent Playbook