The recipient of nearly 100 US patent assets from Intellectual Ventures LLC (IV) this past June, Buffalo Patents, LLC has begun litigation, suing BBK Electronics (OnePlus) (6:21-cv-01063), Coolpad (Yulong Computer) (6:21-cv-01061), HTC (6:21-cv-01062), TCL Communication (6:21-cv-01064), and ZTE (6:21-cv-01065) in the Western District of Texas. Asserted are four patents described by the plaintiff as “generally relate[d] to internet and wireless network telephony”, with infringement allegations targeting the defendants over their respective alleged provision of smartphones that support Voice over Wi-Fi (VoWi-Fi) or Wi-Fi calling.