Resonant Systems, Inc. (d/b/a RevelHMI) has filed separate Eastern District of Texas suits against Samsung (2:22-cv-00423) and Sony (2:22-cv-00424), targeting the support of certain haptic feedback functionality within their respective Galaxy-series smartphones and Playstation 5 DualSense controllers. Three patents are asserted against Sony, two of them in suit in the Samsung case, all generally relate to “linear vibration motor technology”. These cases are not RevelHMI’s first; in 2015, the plaintiff filed a short-lived case with initial infringement allegations that suggest that it contemplated a very different direction for this campaign.