janv. 201118 ao???t 2011General Electric CompanyLow cost and flexible energy management system and method for transmitting messages among a plurality of communication networksUS20110282497 *15 juil. 201117 nov. 2011J & F TechnologiesNetworked electrical interfaceUS20120089263 *22 juil. 201112 avr. 2012Samsung Electronics Co., Ltd.Power management apparatus, power management system including the p