Stingray IP Solutions, LLC, a subsidiary of Acacia Research Corporation, has continued its pattern of filing cases in pairs, hitting Amazon (Amazon.com, eero, Immedia Semiconductor (d/b/a Blink), Ring)) (2:21-cv-00194, 2:21-cv-00196), Legrand (2:21-cv-00201, 2:21-cv-00202), and Somfy (2:21-cv-00193, 2:21-cv-00195), all in the Eastern District of Texas. Eight patents picked up from Harris Corporation (now L3Harris after the 2019 merger with L3 Technologies) are asserted against each defendant, in groups of four, with infringement allegations throughout the campaign targeting the provision of smart devices and related products that support various wireless standards.