The smart home campaign of IP Edge LLC, filed through affiliate Karamelion LLC, saw four more defendants added this past week: Ingersoll-Rand (2:18-cv-00442), Leviton Manufacturing (1:18-cv-01670), Napco Security (1:18-cv-01671), and United Technologies (1:18-cv-01672). The new cases join existing suits filed in August across multiple districts against ADT, AT&T (AT&T Digital Life), Frontpoint Security Solutions, Protect America, and Reliant Energy. Asserted across the campaign is a family of two patents generally related to controlling a “distributed appliance system”, with the defendants accused of infringement through the provision of a variety of connected appliances. The complaints particularly identify devices using the Z-Wave wireless communications protocol, at least one calling out control by the Samsung SmartThings Hub, although Samsung is not named as a party.