A ruling yesterday in the Northern District of California may have repercussions on the smartphone patent battles raging across the US court landscape. A federal judge granted a user of a standards-essential patent a preliminary injunction against enforcement of a possible US International Trade Commission (ITC) sales injunction. This decision by Senior District Judge Ronald Whyte is the first time a US district court is preventing the ITC's only option to combat patent infringers in conjunction with standards-essential patents.