Network Architecture Innovations LLC, an affiliate of Empire IP LLC, added ten defendants late in 2015 to a litigation campaign that it launched in June. The complaints assert a single patent (5,974,451) generally related to a web server that adds a “bulletin” (e.g. an advertisement) to information sent from a Wide Area Network (WAN) to a computer “external” to that network. Thus far the NPE has targeted companies that provide live media streaming services via webcams in the adult Internet entertainment market.