Vortical Systems LLC has sued Yuneec International (2:25-cv-00158) over a pair of former IBM patents generally related to navigating an unmanned aerial vehicle (UAV). The provision of drones is targeted here, the third campaign over this particular patent family, the first litigated by Daedalus Blue LLC from January 2020 to November 2022 and the second, by Wildcat Licensing LLC, from June 2023 to January 2025. Yuneec was a defendant in the Wildcat Licensing campaign.