Publicly traded Quest Patent Research Corporation (QPRC) has added cases to two of its subsidiaries’ litigation campaigns, while also launching a third. At the beginning of this month, Photonic Imaging Solutions Inc. asserted four patents, generally related to CMOS image sensors, against ASUS, Lorex Technology, and NETGEAR; it has now sued a fourth defendant, Lenovo (1:18-cv-00636), targeting more laptops, tablets, desktop computers, and smartphones, calling out the Yoga Book YB1-X90L in the new complaint. Meanwhile, separate QPRC subsidiary Mariner IC Inc. has also sued Lenovo (2:18-cv-00168), as well as Huawei (2:18-cv-00167) and TiVo (2:18-cv-00166), over two patents broadly related to anchoring a semiconductor die to prevent cracking, after filing cases asserting those same patents against Acer, ASUS, Bose, Schneider Electronics, and Sharp in mid-March. Finally, QPRC’s CXT Systems, Inc. has kicked off a new litigation campaign with the potential to expand quickly and widely, asserting multiple patents against Academy (d/b/a Academy Sports + Outdoors) (2:18-cv-00171), Pier 1 Imports (2:18-cv-00172), and The Container Store (2:18-cv-00173), targeting their e-commerce websites.