Powerline carrier communications devices; namely powerline carrier communication modems, powerline carrier semiconductors, powerline carrier integrated circuits, powerline carrier communication transceivers, powerline carrier integrated circuits for narrowband data communications, powerline carrier integrated circuits for broadband data communications, powerline carrier systems, powerline carrier telecommunications components, powerline carrier telecommunications printed circuit boards, powerline carrier telecommunications systems, powerline carrier embedded systems and networks, powerline carrier home automation devices, components, networks and systems, powerline carrier electric power utility devices; namely meters, monitoring equipment, telemetry equipment, energy management equipment, control equipment, components, service providers, networks and systems, powerline carrier security devices, components and systems, powerline carrier smart home devices, components, networks and systems, powerline carrier home automation devices, components, networks and systems, powerline carrier commercial automation devices, components, networks and systems, powerline carrier industrial automation devices, components, networks and systems, powerline carrier command and control devices, components, networks and systems, powerline carrier development tools; namely software and hardware development kits, evaluation boards, modules and systems, computer development software, computer development hardware