(Telecompaper) InterDigital has announced its wholly owned subsidiaries InterDigital Communications, InterDigital Technology, IPR Licensing and InterDigital Holdings have filed a complaint with the US International Trade Commission (USITC) against Huawei Technologies, Futurewei Technologies, Huawei Technologies (USA), Huawei Device USA, Nokia Corporation, Nokia, Samsung Electronics, Samsung Electronics America, Samsung Telecommunications America, ZTE and ZTE (USA) alleging that they engaged in unfair trade practices by selling for importation into the United States, importing into the United States and/or selling after importation into the United States certain 3G and 4G wireless devices (including WCDMA-, cdma2000- and LTE-capable mobile phones, USB sticks, mobile hotspots, laptop computers and tablets and components of such devices) that infringe up to seven of InterDigital's US patents. The action also extends to certain WCDMA and cdma2000 devices incorporating Wi-Fi functionality.