Texas monetization firm IP Edge LLC, through plaintiff Tunnel IP LLC, has added four new cases to the campaign that it launched in May 2020 over a single patent generally related to a modular inter-unit transmitter/receiver for a portable device. In its new complaints, Tunnel IP accuses Alps Alpine (2:20-cv-04360) and Faurecia (Clarion) (2:20-cv-04363) in the Southern District of Ohio, Aurelius (Blaupunky) (1:20-cv-01128) in the District of Delaware, and Namsung (6:20-cv-01555) in the Middle District of Florida of infringement through the provision of automobile stereo receivers that feature wired and wireless connection functionalities